新建铁路成都至贵阳线乐山至贵阳段CGZQSG4标段隧道工程专项施工方案编制：审核：批准：中交第二航务工程局有限公司成贵铁路项目经理部二〇一四年五月目录一、编制依据、编制范围及设计概况.................................11.1编制依据..................................................11.2编制范围..................................................21.3设计慨况..................................................2二、工程慨况.....................................................22.1工程概述..................................................22.2主要技术参数见表..........................................22.3主要工程数量..............................................3三、自然特征.....................................................43.1沿线地形地貌..............................................43.2工程地质..................................................43.3水文地质特征..............................................53.4地震动参数................................................53.5气象特征..................................................5四、施工方法与工艺...............................................54.1隧道洞身开挖..............................................64.2支护.....................................................164.3洞门与明洞施工...........................................224.4超前地质预报.............................................254.5监控量测.................................................274.6隧道防排水施工方案.......................................354.7仰拱施工..................................................404.8二次衬砌.................................................404.9附属工程.................................................454.10综合接地................................................47五、工程质量保证措施............................................475.1超前地质预报.............................................475.2监控量测.................................................485.3隧道开挖.................................................485.4爆破.....................................................495.5对揭露的围岩级别识别.....................................495.6开挖进尺控制.............................................495.7喷射混凝土...............................................495.8衬砌混凝土...............................................495.9施工安全步距.............................................515.10隧道防水................................................515.11防衬砌开裂的技术措施....................................515.12防排水施工措施..........................................525.13未按设计要求进行铺设钢筋网等临时支护的预防措施..........525.14台车衬砌质量控制措施....................................525.15结构防排水施工处理不当预防措施..........................535.16衬砌中防水层在铺设中有破损、折曲现象预防措施............535.17仰拱施工预防措施........................................535.18电缆槽施工控制措施......................................53六、施工安全保障措施............................................546.1开挖施工安全保证措施.....................................546.2火工品运输及爆破施工安全保证措施.........................556.3装碴及运输安全保证措施...................................566.4支护、衬砌安全保证措施...................................586.5通风与防尘安全保证措施...................................596.6临时用电及照明安全保证措施...............................60...
