地下室防水施工方案

目录1编制依据···································································································21.1编制依据·················································································································22工程概况···································································································22.1工程概况·················································································································23地下防水工程概况······················································································33.1地下室外墙防水········································································································33.2地下室基础底板侧面和底面防水··················································································33.3地下室顶板防水做法··································································································44施工安排···································································································44.1施工进度安排···········································································································45施工准备···································································································75.1劳动力准备··············································································································75.2技术准备·················································································································75.3材料准备·················································································································75.4机具准备·················································································································95.5现场准备·················································································································96施工方法···································································································96.1地下室抗渗混凝土施工·······························································································96.2SBS改性沥青防水卷材施工·······················································································137各项管理及保护措施·················································································247.1质量保证措施·········································································································247.2安全施工保证措施···································································································267.3文明施工与CI········································································································291编制依据1.1编制依据1、《地下工程防水技术规范》GB50108-20082、《地下防水工程质量验收规范》GB50208-20113、《建筑工程施工质量验收统一标准》GB50300-20014、《地下工程防水》08BJ6-15、其他相关技术应用规范6、施工图2工程概况2.1工程概况1、工程名称：北京市平谷区王辛庄镇万德福广场B-34区块工程2、建设单位：北京九源富春房地产开发有限公司3、施工单位：浙江省东阳第三建筑工程有限公司4、监理单位：北京宏远工程建设管理有限责任公司5、工程地点：北京市平谷区王辛庄镇迎宾环岛西北侧6、结构形式：框架剪力墙结构7、建筑概况：本工程北京市平谷区王辛庄镇万德福广场B-34区块工程，共8栋办公楼（A-1、A-2、B-1、B-2、C-1、C-2、D-1、D-2），4栋住宅楼（1、2、3、4#楼）及S1、S2#商业裙楼，总建筑面积约131876㎡；其中地下室面积约33809㎡，地上总建筑面积为98067㎡，住宅建筑积面为29420㎡，办公建筑面积为54531㎡；商业建筑面积为14116m2。结构为地下车库一层，办公楼、住宅及商业裙楼地下二层，办公楼及住宅地上16、17层，商业裙楼地上2层，本工程±0.000米相当于绝对标高24.6m。8、结构概况：本工程主楼部分采用CFG桩复合地基，地下车库部分为天然地基，商业裙房部分为抗浮锚杆。基础形式为梁板式筏形基础，框架-剪力墙结构。建筑结构及构件的安全等级为二级；抗震等级：剪力墙为二级；框架为三级。地下车库基底标高-8.80m，基础底板厚度为500mm；办公部分基底标高为-9.20m，基础底板厚度800mm；住宅部分基底标高为-8.50m，基础底板厚度800mm。剪力墙外墙厚度400，350mm厚。3地下防水工程概况根据设计要求，本工程的地下防水等级为一级，地下室基础底板及外墙防水采用4+3厚SBS改性沥青防水卷材，地下室顶板采用3厚SBS改性沥青防水卷材+4厚SBS改性沥青耐根刺防水卷材。3.1地下室外墙防水地下室外墙防水采用4+3厚SBS改性沥青防水卷材在迎水面进行设防，具体做法为：防水混凝土墙20mm厚1：3水泥砂浆找平层界面处理剂一道4+3厚SBS改性沥青防水卷材50mm厚聚苯板保护层回填土分层夯实3.2地下室基础底板侧面和底面防水3.2.1基础底板侧面防水做法（适用于侧模为砖胎膜的底板侧面）地下室底板侧面防水采用4+3厚SBS改性沥青防水卷材在迎水面进行设防，具体做法为：防水混凝土基础底板20mm厚1：3水泥砂浆找平层界面处理剂一道4+3mm厚SBS改性沥青防水卷材（底部转角做附加层,每边250mm宽）20mm厚1：3水泥砂浆找平层（底部转角部位做圆弧）240mm厚粘土标准砖砖胎模回填土分层夯实3.2.2基础底板底面防水做法地下室底板防水采用4+3厚SBS改性沥青防水卷材在迎水面进行设防，具体做法为（自上而下）：防水钢筋混凝土基础底板50厚C20细石混凝土保护层4+3厚SBS改性沥青防水卷材界面处理剂一道100厚C15混凝土垫层200厚碎石褥垫层（主楼CFG复合地基部分）原土3.3地下室顶板防水做法地下室顶板防水采用3厚SBS改性沥青防水卷材+4厚SBS改性沥青耐根刺防水卷材，具体做法为（自上而下）：种植土；土工布过滤层；20高塑料排水层，凸点向上；70厚C20细石混凝土保护层，每6m设分割缝，缝内填高分子密封膏4厚SBS改性沥青耐根刺防水卷材3厚SBS改性沥青防水卷材20厚1:3水泥砂浆找平层（阴角转角部位做圆弧）C20细石混凝土找坡层，找坡2%（最薄处50mm）抗渗钢筋现浇混凝土顶板4施工安排4.1施工进度安排根据工程总体施工进度计划，地下室底板防水及侧壁防水施工进度安排如下：地下室基础底板防水施工分段图如下：施工分区图h=8001段2段3段4段5段6段10段9段A-1#办公楼A-2#办公楼B-2#办公楼B-1#办公楼1#住宅3#住宅4#住宅2#住宅C-1#办公楼C-2#办公楼D-2#办公楼D-1#办公楼S1#商业S1#商业S1#商业S1#商业S1#商业S2#商业S2#商业S2#商业（E1段）（E2段）（地下车库）（地下车库）（地下车库）（地下车库）（地下车库）（地下车库）（地下车库）（地下车库）7段（地下车库）8段（地下车库）B-34区块施工段划分图（B1段）（B2段）（C段）（A段）（F段）（D段）地下室底板及外墙防水施工进度计划如下：5施工准备5.1劳动力准备本工程的地下室防水将组织专业施工队伍进行施工，从与公司多年合作的合格的劳务分包中进行公开招标，经资质审查、业绩考察，选定具有专业资质的防水施工队。专业施工队应“两证”齐全、有效，操作人员应持证上岗，熟练掌握施工机具的使用、卷材施工工艺。地下室防水施工拟配备的施工操作人员根据施工情况安排35～50人。5.2技术准备1）施工前组织工程技术管理人员对设计图纸进行认真的阅读，明确工程的防水等级，防水做法，抗渗混凝土的强度等级、抗渗级别，细部构造，设计选用图集等，如发现图纸中有不明确事宜，应及时向设计人员提出，由设计人员进行确定。2）熟悉有关地下防水工程的现行国家、行业规范、规程及相关的地方标准，熟悉设计选用的建筑防水图集，熟悉并掌握防水施工工艺，质量标准及相关强制性条文。3）编制科学合理的地下防水施工方案，编制完成经项目评审、公司审批后，报监理单位审批，审批后应严格执行。4）方案编制审批通过后，由项目技术部组织进行方案交底，进一步明确工程的防水做法，细部构造，质量标准，施工工艺流程及相关安全要求等。施工前由专业工长根据施工方案、施工图纸、现行国家规范标准等，并结合本工程的实际情况对施工班组进行书面技术交底，交底内容要详细可行。5.3材料准备1）、抗渗混凝土基础底板及外墙采用抗渗混凝土，抗渗等级