广州市轨道交通四号线大学城专线【仑头～大学城站盾构区间】土建工程盾构区间隧道防水施工方案编制复核批准中铁十三局集团公司广州地铁项目经理部二○○四年七月0目录一、工程概况..............................................................................3二、盾构区间隧道防水设计.........................................................31、防水原则...........................................................................................32、防水标准...........................................................................................33、防水分类...........................................................................................3三、防水施工工艺及措施.............................................................41、管片自防水........................................................................................4（1）管片型式及厚度..........................................................................4（2）管片类型.....................................................................................4（3）管片的拼装形式..........................................................................4（4）管片生产.....................................................................................4（5）管片破碎防治措施.......................................................................4（6）管片修补.....................................................................................62、管片接缝防水.....................................................................................8（1）密封垫防水.................................................................................8（2）嵌缝防水...................................................................................10（3）节点防水...................................................................................123、管片外防水......................................................................................12（1）同步注浆...................................................................................12（2）二次注浆...................................................................................164、隧道接口防水...................................................................................16（1）区间隧道与始发井、车站、吊出井接口防水处理......................17（2）区间隧道与联络通道接口防水处理............................................1815、联络通道防水...................................................................................18（1）施工安排...................................................................................19（2）施工工艺...................................................................................19（3）施工注意事项............................................................................206、管片堵漏处理...................................................................................20（1）基本原理...................................................................................21（2）施工工艺...................................................................................212盾构区间隧道防水施工方案一、工程概况广州轨道交通四号线大学城专线【仑头～大学城盾构区间】土建工程，北起仑头后底岗盾构始发井，经仑头村穿越仑头海至官洲岛，通过官洲站后经官洲村、官洲河等地，至大学城站结束。区间设计起讫里程YDK16+110～YDK18+936.5，线路全长2826.5m。其中：YDK16+110～YDK16+191.6（81.6m）...