供热管网及换热站改造工程混凝土基础施工方案及方法

2024-1-19 08:49| 发布者: 小琅| 查看: 273| 评论: 0|来自: 综合

摘要: 1、基础开挖放线由于建筑平面控制桩及轴线控制桩距基础外边线较远，在基础开挖时，不易被破坏，故在开挖基础时不需引桩。基础开挖撒线宽度不应超过15cm。（1）根据建筑物平面控制网、设计边坡及地面高程，分别测设出 ...

 <strong style="color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; margin: 0px; padding: 0px; outline: 0px; max-width: 100%; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px; visibility: visible;">1、基础开挖放线</span></strong><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; letter-spacing: 0.034em; font-size: 14px; visibility: visible;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; visibility: visible;"></span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">由于建筑平面控制桩及轴线控制桩距基础外边线较远，在基础开挖时，不易被破坏，故在开挖基础时不需引桩。基础开挖撒线宽度不应超过15cm。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">（1）根据建筑物平面控制网、设计边坡及地面高程，分别测设出基槽下口（坡角）及基槽上口（坡顶位置桩），并沿上口桩撒出开挖边线，上口桩位允许误差+50mm、－20mm。基槽下口桩允许误差为+10mm；开挖至接近槽底时，应及时测设坡角与3m×3m的方格网点标高，允许误差为：±10mm。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">（2）垫层上基础放线：用经纬仪正倒镜法以轴线控制桩为准将各轴线直接投测在垫层上。</span></section><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; visibility: visible;"></p><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; visibility: visible;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px; visibility: visible;">2、沟槽开挖</span></strong></p><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; visibility: visible;"></span></p><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">（1）挖槽以前技术人员认真熟悉施工图纸及有关规范、工艺标准、勘探现场，充分了解挖槽段的土质、地下水、地下构筑物、沟槽附近地上建筑物及施工环境等情况，按设计要求及施工规范确定挖槽断面。合理地选用施工机械，并制定必要的安全措施，以确保施工质量及安全。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">（2）施工前，与现况地下管线所属相关管理单位联系，采取措施，防止损坏管道。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">（3）本工程采用机械开挖沟槽，槽深小于2.0m，边坡采用1：0.3，严禁超挖。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">（4）开挖出的渣土如施工现场有条件允许存土，可将好土存放在沟槽边，并堆放整齐，以便回填之用。如土方堆放于槽边，其距槽边净距不得小于0.5m，堆土高度不得大于1.5m。如槽边无存土条件，与建设方协商另地暂存，回填时再运回。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">（5）沟槽开挖中要求沟底内无塌方、积水，如发生超挖或槽底基底扰动，应按以下方法处理：</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">①干槽超挖150mm以内，可用原土回填整实，其密度不得低于原地基天然土的密实底。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">②干槽超挖150mm以上，可用石灰土处理，密实底不得低于95%。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; visibility: visible; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px; visibility: visible;">③槽底有地下水或地基土壤含水量较大，不适于夯实的，可用天然级配沙石和细砂回填，填沙深度不小于200mm，由于排水不良导致地基土壤扰动时，可用下列办法处理：</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">a.扰动深底100mm以内时，可铺河砂处理。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">b.扰动深度在100～300mm时，可铺级配砂石或河砂。填沙深度不小于100mm。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（6）当沟底有不易清除的石块等坚硬物体及凡可能引起不均匀深降的地段，其地基应深挖至设计标高以下200mm，铺垫沙土或素土并夯实平整。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（7）检查井处挖至设计高程后进行钎探，做好钎探记录，约请业主、设计、监理进行验槽合格后进行下道工序的施工。</span></section><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></p><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">3、地基钎探</span></strong></p><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></p><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">①布置方法：放线人员按照地基钎探孔点布置图在地基上布孔，在每个孔位上撒上白灰点。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">②钎探操作工序：放钎点线→就位打钎→记录锤击数→拔钎→检查孔深。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">③记录锤击数：钎探工作每3人一组，把每个孔的钎探记录认真填写在钎探记录表中，钎探时应随时在钎杆上标注尺寸，钎探下面每30cm画一个记号，钎杆上面标注穿心锤高度50cm，钎杆每打入土层30cm时，记录一次锤击数，常规情况下，孔深达到2.0米时可不再钎探，分五步进行。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">④拔钎：当钎探按规定要求，钎到深度后，记录完毕，把起钎器安装在钎杆上，利用杠杆原理，将钎拔出，每出一段将起钎器往下移一段，直至完全拔出为止。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">⑤移位：当拔出钎杆后，把原标注该孔号的砖盖在该孔位上，准备复查，注意不要出现孔位号错现象，然后移至下一个孔，继续重复以上的钎探工作。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">⑥灌砂：打完的钎孔，经过质量检查人员和工长检查孔深与记录无误后，即可进行灌砂。灌砂时，每填入30cm可用木棍或钢筋棒振捣实一次，灌砂采用的形式是每30孔为一组，打完后及时灌砂。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">⑦施工记录整理：按钎孔顺序编号，将锤击数填入统一表格内，字迹要清楚，再经过打钎人员的技术员签字后归档。</span></section><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></p><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">4、土方回填</span></strong></p><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></p><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（1）基层已整平，密实度符合设计要求，并办理隐蔽验收手续；</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（2）根据设计对回填土层的厚度、干密度要求及现场土料情况、施工条件，进行了必要的压实试验，根据已选定了土料，确定了土料含水量控制范围、铺土厚度、夯实或碾压遍数等参数。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（3）施工机具设备已备齐，经维修试用，可满足施工要求，水、电已接通。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（4）回填土之前，已将坑（槽）底杂物、及建筑材料清理干净。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（5）回填土方从基底最低处开始，水平分层整片回填夯实，每层厚度不大于250mm。必须做成斜坡形分段填筑，重叠1m，上下层错缝距离不大于1m。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（6）保证填土含水率在一定范围内且符合设计要求；干密度检测值应有90%以上符合设计要求。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（7）夯实一层后，撒水湿润，保证上下层接合良好。</span></section><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></p><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 15px;">5、砼基础</span></strong></p><p style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; clear: both; min-height: 1em; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></span></p><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（1）测量及隐蔽验收</span></strong></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">①在已经封闭的基坑混凝土垫层上进行轴线的投测和校核，轴线投测完毕后必须立即进行闭合检查，将误差控制在规定范围内。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; text-align: center; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 12px; color: rgb(0, 128, 255);">放线尺寸允许误差表</span></section><p style="text-align: center;"><a href="data/attachment/portal/202401/19/084842vinighn6rizmgx00.png" target="_blank"><img src="data/attachment/portal/202401/19/084842vinighn6rizmgx00.png"></a></p><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">②对开挖成型的基坑在各种准备工序完善且自检合格后，组织各参建单位进行验收，同时作好验收资料手续的完善，对成型的基坑进行现场摄像和录影，作好隐蔽前的情况记录。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">③根据基础断面的不同，逐个投测出基础的模板边线，上部柱子钢筋的摆放位置，并设置不同方向的控制点，用于浇筑成型后的校核控制。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（2）钢筋工程</span></strong></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">①首先对进场钢筋进行力学性能复检，严禁使用复检不合格钢材。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">②根据已经开挖校核的轴线和标高，确定基础中上部钢筋的下料长度，以及设计图纸中钢筋的规格、型号、箍筋间距以及保护层厚度等进行钢筋的绑扎和焊接固定，在指定地点堆放整齐备用。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">③随时听从现场实际情况和项目部的指令，将绑扎成型的基础底板钢筋和上部钢筋逐步就位固定。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">④对于独立柱基础，在浇筑混凝土过程中，必须安排专人及时对柱子钢筋进行摇动和复位，避免出现钢筋位移而导致上部柱子位移，在混凝土凝固前必须将柱子钢筋全部校核至设计轴线位置。严禁事后对钢筋采取二次弯曲的方式进行校准。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（3）模板工程</span></strong></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">①根据设计图纸中基础断面的几何尺寸进行模板试配，并作好模板编号，为及时施工提供条件，达到缩短现场配制时间的目的。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">②模板的加固与固定：在浇筑混凝土时必须安排专人进行护模，在浇筑混凝土时对发生的模板位移和爆模现象进行及时的修复和处理。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">③模板的拆除</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">在混凝土强度等级达到设计强度等级的50%或混凝土浇筑时间达到12小时，避免拆除过早造成混凝土开裂和出现表面毛糙而影响混凝土外观质量的人为损伤事件。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">④拆除模板的堆放</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">在基础混凝土模板拆除后，必须立即将拆除的周转材料运到指定位置并堆码成方，纵成一条线。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><br data-filtered="filtered" style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><strong style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">（4）混凝土工程</span></strong></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">①本基础工程的混凝土采用商品混凝土浇筑，在浇筑混凝土前，通过图纸设计的混凝土强度等级与商品混凝土商衔接，提前进行试配，将所试配资料向监理报验并留存。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">②检查混凝土浇筑设备运转是否正常，准备工作是否到位。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">③在检查模板支设完毕并加固后，将混凝土输送到基坑内，在用插入式振动棒振捣时，插入点必须采用梅花型布置，间距不得大于500mm，插入式振动棒采用快插慢拔得方式进行振捣。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">④严格控制振动棒的振捣时间，振动棒的操作者必须是经过培训合格的专业人员，严格控制混凝土的振捣质量。本工程基础混凝土严禁出现蜂窝、孔洞、麻面、露筋、表面泛浆或多孔等质量缺陷，杜绝拆除模板时出现脱棱掉角等人为质量缺陷。</span></section><section style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; color: rgba(0, 0, 0, 0.9); font-family: system-ui, -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei UI", "Microsoft YaHei", Arial, sans-serif; font-size: 17px; letter-spacing: 0.544px; text-align: justify; background-color: rgb(255, 255, 255); line-height: 1.6em; text-indent: 2em; box-sizing: border-box !important; overflow-wrap: break-word !important;"><span style="margin: 0px; padding: 0px; outline: 0px; max-width: 100%; box-sizing: border-box !important; overflow-wrap: break-word !important; font-size: 14px;">⑤混凝土的养护，在混凝土浇筑12小时后，对混凝土进行洒水养护，养护时间不得少于7天。</span></section>

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