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新建铁路靖宇至松江河线工程下山头隧道专项施工方案(缺陷处理方案)中铁九局宇松工程二公司第二架子队2014年10月1日中国中铁下山头隧道缺陷处理专项方案中国中铁2目录一、工程概况.............................................................................................................1二、编制依据.............................................................................................................1三、基本情况及原因分析.........................................................................................23.1缺陷产生原因分析.............................................................................................23.2总体补强加固及拆除重做方案.........................................................................33.3处理方法及加固原理.........................................................................................4四、施工工艺.............................................................................................................54.1钢带补强加固工艺.............................................................................................54.2二衬拆除重新施工工艺...................................................................................114.3二衬背后注浆加固工艺...................................................................................15五、缺陷处理里程统计...........................................................................................185.1钢带加固里程统计表.......................................................................................185.2二衬拆除里程统计表.......................................................................................195.3二衬注浆加固里程统计表...............................................................................19六、资源配置...........................................................................................................236.1劳力配置：.....................................................................................................236.2设备机具配置：...............................................................................................236.3材料配置:.........................................................................................................24七、质量保障措施...................................................................................................247.1质量管理...........................................................................................................247.2质量保障...........................................................................................................25八、安全保障措施...................................................................................................278.1安全管理...........................................................................................................278.2安全保障...........................................................................................................27下山头隧道缺陷处理专项方案中国中铁1下山头隧道缺陷处理专项施工方案一、工程概况下山头隧道进口里程为DK53+770、出口里程为DK61+730，全长7960米。隧道DK53+770至DK61+600段位于13.5‰的上坡坡段，DK61+600至DK61+730段位于13.0‰坡度上坡坡段，平面入口位于直线上，出口位于左偏、R=1200米的曲线上。隧道所经地区为低山地貌，其中DK58+280～DK61+730为丘前缓坡，地势较平缓；其余为丘陵剥蚀区，地势较为陡峻，"V"字型冲沟较发育，地形相对高差较大...