大道西段快速路工程Ш标段全长1061m（k4+124~k5+185）,主要为高架桥梁、地面桥和地面道路等，涉及深基坑的承台和桥台位于XX河、XX河、XX河等三座桥梁处。
XX河桥桥台基底标高-1.30m，老河道标高为+1.5m，台后标高为+3.6m。基坑开挖深度4.9m；
XX河桥桥台基底标高-1.30m，老河道标高为+1.4m，台后标高为+3.4m。基坑开挖深度4.7m；
XX河桥台基底标高-1.30m，位于旱地，台后标高为+5.2m。基坑开挖深度6.5m；
目录
一、工程概况··········································3
1、深基坑概况·············································3
2、地质情况···············································4
3、平面位置···············································4
二、编制依据··········································4
三、施工计划··········································5
1、施工时间安排···········································5
2、资源投入情况···········································5
四、工艺方法··········································5
1、总体设想···············································5
2、施工流程···············································6
3、围堰施工···············································6
4、河边桥台开挖支护方法···································6
5、陆地基坑开挖支护方法···································7
6、钢板桩施工·············································7
7、土方开挖···············································8
8、基坑排水···············································9
9、砼结构物施工···········································9
10、钢板桩拔除············································9
五、设计计算··········································9
1、陆地基坑围护计算·······································15
2、河边基坑围护计算······································18
六、安保措施··········································9
1、组织体系建设···········································9
2、沉降监测控制··········································10
3、安全文明措施··········································10
七、其它事项·········································11
1、其它辅助方法··········································11
2、XX河桥0#台第四幅基坑································11
3、加强与水务部门、地方政府的联系沟通····················12