下穿铁路框架涵顶进施工方案

下穿铁路框架涵顶进施工方案

目录

1、编制说明............................................................... 3 1.1编制依据............................................................... 4 1.2编制原则............................................................... 4 1.3编制范围............................................................... 4 2、工程概况............................................................... 4 3、施工组织安排......................................................... 4 4、施工准备............................................................... 5 4.1现场调查...............................................................5 4.2签订安全协议.........................................................5 4.3人力物资准备.........................................................5 4.4修建临时工程.........................................................6 5、施工方案...............................................................6 6、便梁支撑桩施工及防护............................................. 6 6.1线路加固...............................................................6 6.2挖孔桩施工............................................................6 6.3桩身混凝土灌注......................................................9 7、框架涵顶进施工......................................................10 7.1开挖工作坑.........................................................10 7.2滑板及润滑层施工...................................................11 7.3后背施工............................................................12 8、预制框构 (12)

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8.1施工工序...............................................................12 8.2模板与支护............................................................13 8.3钢筋加工与安装......................................................13 8.4混凝土浇筑............................................................13 8.5船头坡..................................................................14 9、顶进准备...............................................................14 9.1线路加固...............................................................14 9.2顶进设备...............................................................14 9.3开顶前的准备工作...................................................15 10、顶进作业...............................................................16 10.1试顶与框构起动...................................................16 10.2顶进..................................................................17 10.3顶进挖土............................................................17 10.4接长车道............................................................18 11、恢复线路............................................................ 19 11.1翼墙及引道施工...................................................19 11.2出入口铺砌施工...................................................19 12、附件 (19)

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XX二线工程

下穿铁路框架涵顶进施工方案 1、编制说明

1.1 编制依据

、《XX线XX至XX段增建二线工程,XX二线XX施,涵,-9351