介绍： 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
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