青荣城际铁路QRZH-Ⅰ标段娄山特大桥DK19+992.97~DK20+115.77(25#~29#墩)下部结构专项施工方案编制:职称:审核:职称:审批:职称:中铁十四局集团青荣城际铁路工程施工指挥部二〇一四年四月目录1编制依据、原则.........................................................................................................31.1编制依据.............................................................................................................31.2编制原则.............................................................................................................31.3编制范围.............................................................................................................42工程概况.....................................................................................................................42.1工程简介.............................................................................................................42.2工程地质概况.....................................................................................................52.3水文地质特征.....................................................................................................62.4拟定作业内容等级及影响范围.........................................................................63施工组织.....................................................................................................................73.1工期安排.............................................................................................................73.2施工组织.............................................................................................................73.3施工准备.............................................................................................................94施工方案及具体工艺...............................................................................................104.1桩基施工...........................................................................................................114.2承台施工...........................................................................................................224.3墩身施工...........................................................................................................265质量保证措施...........................................................................................................305.1质量目标、创优目标.......................................................................................305.2质量保证体系...................................................................................................305.3质量管理机构...................................................................................................315.4质量控制措施...................................................................................................326施工安全组织及体系...............................................................................................336.1安全目标...........................................................................................................336.2安全保证体系...................................................................................................346.3安全管理组织机构...........................................................................................346.4安全管理制度........................................................