福州市南台大道南段螺洲互通立交工程（增加项目）水域中承台（钢板桩围堰）施工方案编制：复核：中铁八局集团第一工程有限公司福州市南台大道南段螺洲互通立交工程（增加项目）项目经理部2012年2月目录第一章编制依据...............................................................................................................................................2第二章工程概况...............................................................................................................................................32.1工程简介....................................................................................................................................................32.2工期进度安排............................................................................................................................................52.3施工条件....................................................................................................................................................52.3.1地形、地貌...............................................................................................................................................52.3.2水文条件...................................................................................................................................................82.3.3气象条件...................................................................................................................................................92.3.4桥位基础总体平面布置图....................................................................................................................9第三章施工方法.............................................................................................................................................113.1钢板桩围堰施工工艺..............................................................................................................................113.1.1钢板桩施工流程...............................................................................................................................113.1.2施工准备...........................................................................................................................................123.1.3钢板桩设计.......................................................................................................................................123.1.4钢板桩围堰施工...............................................................................................................................253.1.5钢板桩围堰拆除...............................................................................................................................263.1.6钢板桩的施工中遇到的问题及处理...............................................................................................263.1.7围堰挡水效果...................................................................................................................................273.1.8变形观测...........................................................................................................................................273.1.9承台基坑开挖前施工准备...............................................................................................................273.1.10承台基础开挖...............................................................................
