排水管道沟槽拉森钢板桩支护方案(五工区)

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1、0荆州大道改造工程（K4+180-K4+682）钢板桩支护施工方案编制人：审核人：审批人：荆州大道改造工程五工区编制日期：2018年3月15日10目录第一章编制依据···························································3。第一章编制原则···················································3。第三章工程概况··················································

2、·4。一、工程简介···················································4。二、工程量概况·················································4。三、平面布置图·················································5。第四章拉森钢板桩支护施工·········································6。一、施工准备·····················

3、······························6。二、插打钢板桩、安装内支撑·····················7—11。三、基坑开挖、钢板桩内支撑·····································11。四、支护内排水·················································11。五、变形观测···················································12。六、管道施工（不作详细论述）···

4、····································12。七、拔桩··············································12。10八、钢板桩支护合拢措施保证·································13。十、质量保证措施··························13-15十一、安全文明保证措施·······················15—16。第一章、编制依据一、依据武汉市市政建设科技有限公司设计的荆州大道改造工程（K

5、4+180-K4+682段）施工图；二、现场调查所获取的有关资料；三、荆州大道改造工程（K4+180-K4+682段）指导性施工组织设计；四、本单位拥有的机械设备、施工技术、管理水平及施工经验。第二章、编制原则一、确保工期目标实现合理配置资源，突出重点工程施工，确保工程工期。10二、确保质量以质量为核心，以科技为保证，坚持“质量第一，全面创优”的目标，完善质保体系，针对打拉森钢板桩支护进行编制方案，用于指导现场施工，严格控制，精心组织。三、文明施工与环境安全采用科学的工法、工艺，确保施工与环境安全，文明施工，爱护环

6、境，主动做好各方协调，减少施工干扰；创造良好的施工、生活环境，确保职工安全、健康。四、标准化管理结合钢板桩施工项目特点，建立建设管理的目标体系、责任体系、分级控制系统，按照本专项方案组织、指挥、协调、控制等基本环节。第三章、工程概况一、工程简介荆州大道改造工程（K4+180-K4+682段）位于荆州市荆州区，起于凤凰大道，止于江汉运河。该工程现状道路中间为宽21m的高架桥，高架桥两侧为宽8m车行道，车行道外为人行道。根据本工程地质勘察资料，为了防止沟槽开挖塌方，且确保钢板桩入土深度稳固性，对本次设计的东侧雨污水管道

7、沟槽两侧均采用Ⅲ型桩长9m的拉森钢板桩密扣支护。二、工程量概况钢板桩、支护工程量分布表如下：10序号桩号、支护部位支护长度支护措施1K4+204—K4+237东侧D1000污水管道两侧33m×2排SP-III/长9m×宽0.4m×高×0.125m×厚0.013m拉森钢板桩支护2K4+237—K4+509东侧D1000雨水和D500污水管道两侧272m×2排SP-III/长9m×宽0.4m×高×0.125m×厚0.013m拉森钢板桩支护3K4+509—K4+675东侧D800雨水和D500污水管道两侧166m×2排S

8、P-III/长9m×宽0.4m×高×0.125m×厚0.013m拉森钢板桩支护4K4+237以西D500污水管道两侧64.5m×2排SP-III/长9m×宽0.4m×高×0.125m×厚0.013m拉森钢板桩支护10三、平面布置图101010第四章、拉森钢板桩支护施工一、施工准备1.1、施工通道在支护施工前，应保持施工便道通畅，以便非适用性材料的外运和回填材