污水泵站工程沉井、頂管施工技術與安全專項方案(評審完成修改版)

1、寧波市鄞州區(qū)石碶街道星光村污水泵站工程寧波市鄞州區(qū)石碶街道星光村污水泵站工程沉井、頂管施工技術沉井、頂管施工技術與安全專項方案與安全專項方案編制：審閱：審核：審批：寧波市政工程建設集團股份有限公司寧波市政工程建設集團股份有限公司20152015年5月目錄1工程概況工程概況....................................................................................

2、.......................................91.11.1沉井沉井............................................................................................................................91.21.2頂管頂管...................................

3、.......................................................................................111.31.3地質情況分析地質情況分析..........................................................................................................111.3.1

4、周邊環(huán)境..........................................................................................................111.3.2地形地貌...................................................................................................

5、.......111.3.3地基土的構成與特性......................................................................................111.3.4沉井所處土層..................................................................................................

6、131.3.5地質針對性措施..............................................................................................132編制依據(jù)編制依據(jù).....................................................................................................

7、....................133沉井施工技術方案沉井施工技術方案.........................................................................................................143.13.1工藝流程工藝流程............................................................

8、......................................................163.23.2各工序施工方法各工序施工方法......................................................................................................173.2.1測量定位...............................

9、...........................................................................173.2.2基坑開挖..........................................................................................................173.2.3墊層制作.................

10、.........................................................................................183.2.4井壁分節(jié)制作..................................................................................................193.2.5沉井下沉.........

11、.................................................................................................243.2.6封底..................................................................................................................

12、283.2.7底板施工..........................................................................................................293.2.8頂板施工............................................................................................

13、..............293.33.3沉井下沉施工質量通病防治沉井下沉施工質量通病防治..................................................................................293.3.1下沉過快.................................................................................

14、.........................293.3.2下沉過慢..........................................................................................................313.3.3突沉.....................................................................

15、.............................................303.3.4傾斜..................................................................................................................313.3.5位移或扭位........................................