中铁一局集团有限公司湖北利万高速公路第二合同段**隧道施工方案编制:复核:审核:审批:中铁一局集团有限公司湖北利万高速公路第二合同段项目经理部2013年5月目录1.编制说明.........................................................11.1编制范围......................................................11.2编制原则......................................................11.3编制依据......................................................12.工程概况.........................................................22.1工程简介......................................................22.2自然条件......................................................22.2.1地形地貌..................................................22.2.2隧道地质条件..............................................22.2.3水文条件..................................................22.2.4气象条件..................................................32.3主要工程数量..................................................32.4工程的主要特点及难点..........................................32.6.1工程主要特点..............................................42.6.2难点工程...................................................43.施工部署.........................................................43.1施工组织机构..................................................43.2临建设施......................................................63.2.1施工便道..................................................63.2.2拌合站....................................................63.2.3临时用电..................................................63.2.4施工及生活用水............................................74.施工进度计划.....................................................75.资源配置.........................................................75.1劳动力配置....................................................75.2施工机械及设备配置............................................75.3材料供应......................................................86.施工工艺和方法...................................................86.1测量放线......................................................86.2截水沟施工....................................................86.2.1施工工艺流程..............................................86.2.2工序分述...................................................96.3洞口开挖及边、仰坡开挖与支护.................................106.3.1明洞及边、仰坡开挖.......................................106.3.2边、仰坡支护.............................................106.4长管棚施工...................................................116.4.1套拱施工.................................................116.4.2搭设钻孔作业平台及安装钻机...............................136.4.3钻进方法及注意事项.......................................136.4.4管棚钢管制作与安装.......................................136.4.5管棚注浆.................................................146.4.6洞口浅埋段地表沉降观测...................................156.4.7洞门工程.................................................156.4.8洞门偏压处理.............................................166.5隧道开挖及支护...............................................166.5.1洞身开挖与出碴...........................................166.5.2钻爆设计.................................................216.5.3超前小导管施工...........................................266.5.4超前锚杆施工.........................