公路穿越施工方案编码：第 1 页 共 19 页版次：0目 录1. 编制依据..................................................................................................................32. 工程概况..................................................................................................................32.1概况....................................................................................................................32.2地形、地质..........................................................................................................32.3管道顶管穿越公路平面示意图：.........................................................................43. 施工方法..................................................................................................................43.1顶管施工方法介绍...............................................................................................44. 施工程序..................................................................................................................75. 施工技术措施...........................................................................................................75.1施工准备.............................................................................................................75.2测量放线.............................................................................................................85.3降水井施工..........................................................................................................85.4作业坑开挖..........................................................................................................95.5发送操作坑地基处理.........................................................................................105.6安装导向支架、就位顶管机和套管....................................................................105.7顶管作业...........................................................................................................115.8挖土、排土..................
