中国路桥宁安铁路工程第一项目分部湾里U型槽邻近既有线施工方案目录1编制依据及原则.............................................11.1编制依据..................................................11.2编制原则..................................................12工程概况及技术标准.........................................22.1工程简介..................................................22.2设计标准.................................................102.3结构形式.................................................102.4结构设计计算荷载.........................................102.5主要设计原则.............................................102.6自然条件及工程环境.......................................112.6.1气象特征..............................................112.6.2水文地址特征及评价....................................112.7邻近既有线与U型槽的位置关系.............................123施工总体方案..............................................123.1总体施工的原则...........................................133.2总体施工安排.............................................133.3重难点工程...............................................133.4三电迁改及地下管线拆迁保护情况...........................134施工组织机构及机械配备....................................164.1施工组织机构、主要人员配备、职责权限.....................164.2施工机械配备.............................................185施工建设目标..............................................195.1总体目标.................................................195.2安全目标.................................................195.3质量目标.................................................205.4环境保护目标.............................................206大临工程分布..............................................206.1施工用电.................................................206.2施工用水.................................................206.3施工便道.................................................206.4施工通讯.................................................217.机械仪器设备、物资计划、劳力配置..........................217.1.机械仪器设备配置........................................217.2劳力配置.................................................218.安全保证体系..............................................21中国路桥宁安铁路工程指挥部1中国路桥宁安铁路工程第一项目分部湾里U型槽邻近既有线施工方案8.1安全目标.................................................218.2成立安全组织机构.........................................228.3安全小组的任务和职责.....................................229、施工方案.................................................239.1U型槽施工防护措施........................................239.1.1重力式高压旋喷桩挡土墙................................239.1.2临时围栏防护..........................................279.2U型槽施工工艺............................................289.2.1主体施工现场布置......................................289.2.2施工顺序..............................................289.2.3测量放线..............................................299.2.4钻孔桩基础施工........................................299.2.5施工工艺..............................................309.2.6钻孔桩施工方法........................................319.2.7开挖原则..............................................369.2.8基坑围护结构的计算荷载................................379.2.9基坑开挖注意事项....................
