上海市金山区新江水质净化二厂及配套管网工程（排海泵站与尾水输送管）顶管施工方案编制人：项目负责人：技术负责人：上海市水利工程集团有限公司2017年7月10第1章工程概况......................................................................................................................................................51.1工程地点及范围..............................................................................................................................................51.2工程地质及水文地质.......................................................................................................................................5第2章工程难点分析...............................................................................................................................................62.1难点：..............................................................................................................................................................6第3章顶管施工方案...............................................................................................................................................73.1泥水平衡顶管施工工艺...................................................................................................................................73.1.1工艺流程图...............................................................................................................................................73.1.2施工原理...................................................................................................................................................73.1.3施工特点...................................................................................................................................................83.1.4顶管机的选型...........................................................................................................................................83.2施工方法及质量控制措施...............................................................................................................................93.2.1测量放样.................................................................................................................................................93.2.2顶管进出洞口处理................................................................................................................................103.2.3管材进场验收........................................................................................................................................123.3注浆孔布置及触变泥浆.................................................................................................................................133.4顶管设备安装................................................................................................................................................143.5曲线顶管参数...............................................................................................................................................163.6顶力控制及中继环布设.................................................................................................................................173.6.1顶力的计算.............................................................................................................................................173.6.2顶力估计...
