京石铁路客运专线JS-1标工程深基坑开挖方案目录1．编制依据及范围.................................................................................................31.1编制依据......................................................................................................31.2编制范围......................................................................................................32．工程概况.............................................................................................................32.1基坑开挖形式工程简介..............................................................................3各深基坑工点统计表（2.1各深基坑工点统计表（开挖深度根据现场实测原地面标高与设计承台底标高确定）底标高确定）.....................................................................................................42.1.1岳家楼特大桥.................................................................................42.1.2西四环特大桥.................................................................................42.1.2永定河特大桥.................................................................................53．施工组织部署.....................................................................................................63.1施工组织机构..............................................................................................63.2安全质量领导小组......................................................................................84．地质情况.............................................................................................................85．总体施工方案.....................................................................................................96．施工方法及工艺.................................................................................................96.1基坑开挖形式..............................................................................................96.1.1工况一....................................................................................................106.1.2工况二....................................................................................................116.1.3工况三.......................