xxxx公路工程永泰梧桐至尤溪中仙段xxxxx合同段xxxx隧道出口段浅埋、偏压专家论证会方案编制：审核：审批：xxxx集团有限公司二〇一七年四月目录1、编制依据、原则及范围.................................................11.1编制依据.........................................................11.2编制原则.........................................................11.3编制范围.........................................................22、工程概况.............................................................22.1隧道概况.........................................................22.1.1设计概况...................................................22.1.2工程特点...................................................32.2工程地质.........................................................32.2.1地形地质情况...............................................32.2.2出口地质围岩情况...........................................42.3水文地质.........................................................52.4施工要求和技术保证条件...........................................53、施工计划.............................................................53.1工期目标.........................................................53.2进度计划.........................................................63.3施工机械配备情况.................................................63.4主要工程数量.....................................................64、洞口段浅埋、偏压施工方案............................................64.1施工工艺程序.....................................................64.2施工方法及要点...................................................74.2.1洞顶改沟及截水沟开挖、浇筑.................................74.2.2洞口土石方开挖.............................................74.2.3边仰坡及成洞面临时防护.....................................84.2.4洞口左线套拱施工..........................................144.2.5偏压挡墙施工..............................................154.2.6超前大管棚施工............................................164.2.7浅埋洞顶回填..............................................184.2.8Ⅴ级围岩浅埋、偏压段施工工艺及工法........................184.2.9中夹岩加固方法及工艺......................................204.2.10超前小导管注浆支护.......................................214.2.11爆破施工.................................................234.2.12初期支护施工.............................................284.2.13结构防、排水.............................................354.2.14二次衬砌及仰拱...........................................394.3监控量测........................................................414.4超前地质预报....................................................435、施工安全保证措施...................................................485.1安全管理组织机构及安全管理人员..................................485.2施工现场安全保证措施..........................495.3施工技术安全保证措施............................................525.4重大风险抢险应急预案............................................535.4.1应急小组组织机构及职责....................................535.4.2重大风险抢险突击队........................................545.4.3项目部设防重大风险抢险办公室..............................545.4.4应急抢险人员、设备、物资..................................555.4.5应急预案处理措施..........................................555.5重大风险分析及安全控制措施....................
