新建沪昆客专贵州段CKGZTJ—3标段坡脚隧道四电接口技术交底案编制：复核：审核：中国交通建设股份有限公司沪昆客专贵州段工程第一项目经理部二〇一一年六月目录1、工程概况...........................................12、四电接口施工项目及主要工程量.......................12.1四电接口主要施工项目....................................................................................................12.2四电接口项目主要工程量...............................................................................................23、综合洞室及过轨管线.................................43.1综合洞室............................................................................................................................43.2进出口过轨管线..............................................................................................................84、隧道综合接地......................................104.1初期支护接地..................................................................................................................104.2二次衬砌综合接地..........................................................................................................114.3明洞仰拱综合接地..........................................................................................................124.4综合接地钢筋布设位置.................................................................................................135、接触网预埋槽道施工................................145.1预埋槽道主要规格型号.................................................................................................145.2槽道里程、位置、型号、偏差控制.............................................................................155.3施工工艺流程................................................................................................................185.4施工方法........................................................................................................................195.5Ⅳa、Ⅲ级围岩地段预埋加固措施...............................................................................225.6槽道二次定位................................................................................................................256、二衬防闪络接地钢筋焊接............................327、水沟电缆槽接地系统................................338、其它施工要求及注意事项............................368.1综合洞室..........................................................................................................................368.2过轨管线..........................................................................................................................378.3综合接地..........................................................................................................................378.4预留槽道..........................................................................................................................388.5接地端子..........................................................................................................................40坡脚隧道四电接口施工技术交底1、工程概况细宁沟隧道全长2078米，起讫里程为DK509+105～DK511+183。隧道采用进出口同时掘进，其中Ⅴc长度440m,,Ⅳa长度60m,Ⅳb长度605m,Ⅲa长度905m,明洞68m。2、四电接口施工项目及主要工程量2.1四电接口主要施工项目技术是系统集成技术的重要内容之一，站后预留接口质量直接影响客运专线的整体性，对建...
