1深圳地铁5号线上水径停车场工程暗挖隧道爆破施工方案目录1编制依据.............................................................................................................................-1-2工程概况、特点.................................................................................................................-1-2.1自然地理特征..............................................................................................................-2-2.1.1地形地貌.............................................................................................................-2-2.1.2地层情况.............................................................................................................-2-2.1.3水文地质.............................................................................................................-3-2.1.4特殊土与不良地质.............................................................................................-4-2.1.5气候条件.............................................................................................................-4-2.2、工程重难点分析及对策...........................................................................................-5-2.3围岩级别及支护参数..................................................................................................-6-3施工安排.............................................................................................................................-6-3.1总体安排......................................................................................................................-6-3.2施工队伍部署、任务划分..........................................................................................-7-4暗挖隧道开挖施工方案.....................................................................................................-7-4.1双线隧道三台阶开挖法..............................................................................................-8-4.1.1成品保护开挖方案.............................................................................................-8-4.1.2三台阶开挖法.....................................................................................................-9-4.2单线隧道两台阶分部开挖法....................................................................................-12-4.3C型隧道开挖方法.....................................................................................................-14-5隧道爆破施工设计...........................................................................................................-21-5.1爆破设计....................................................................................................................-21-5.2A型断面台阶法爆破开挖........................................................................................-24-5.2.1三台阶法爆破设计...........................................................................................-24-5.2.2成品保护段分部爆破.......................................................................................-34-5.3B型断面两台阶分部法爆破开挖............................................................................-37-5.4C型断面钻爆开挖....................................................................................................-42-5.4.1C型断面中隔壁六步钻爆开挖..................................................
