隧道四電接口技術交底范本(存儲版)
【正文】 接地貫通地線在兩側通信信號電纜槽。各過軌管線管口均要求打磨光滑以保護電纜，管線連接處焊接質量、彎管半徑要滿足設計要求，并在電纜槽底露頭1cm，兩端用麻油布、土工布封堵或者冷封膠封堵，以防滲水。西嶺隧道過軌管線布置表過軌管線布置位置數量分布備注Ф100mm通信管Ф100mm信號管Ф150mm電力管距進口洞口2米2根/4根 DK514+2根2根4根DK514+2根2根4根DK514+2根2根4根DK514+2根2根4根距出口洞口2米2根/4根洞口過軌過軌管線平面布置圖隧道綜合接地（1）IV、V級以上圍巖隧道，利用錨桿、鋼拱架（或鋼網片）做為接地極。圖示為接地鋼筋電氣連接示意，各工點施作時應根據具體的鋼筋配筋，采用搭接焊或L型焊接。施工時應對接地鋼筋作出標識，便于檢查。 槽道里程、位置、型號、偏差控制槽道的里程、位置、間距、型號根據設計圖型號要求確定。10mmL≥，≤177。槽道組組裝模擬圖當槽道長度小于2m時用3條扁鋼，大于2m時用4條扁鋼扁鋼間距均勻布設（3）在隧道襯砌上預埋接觸網槽道組時,槽道固定在模板上,其隧道定位務必按接觸網平面圖里程準確定位,模板臺車上開螺栓孔應與槽道組位置匹配。槽道接地焊接圖槽道與防閃絡接地鋼筋焊接 Ⅳa、Ⅲ級圍巖地段預埋加固措施 A、F、G型槽道加固措施在Ⅳa、Ⅲ級硬質巖二襯為纖維混凝土地段接觸網基礎槽道為A型、F型、G型段落時采用Φ14鋼筋網片加強，鋼筋網片置于槽道背后，環(huán)向鋼筋于槽道錨桿接觸并可靠焊接，施工時通過模板臺車定位槽道和定位鋼筋網，如下圖。西嶺隧道接觸網槽道統(tǒng)計表襯砌方式里程槽道類型與線路位置關系槽道類型備注ⅤcDK513+G中間G2 DK513+D左、右D2 DK513+A中間A1 DK513+A中間A DK513+D左、右D2 DK513+F左F2 DK514+F右F4 DK514+A中間A2 DK514+A中間A1 DK514+F左F2 DK514+F右F4 DK514+D左、右D1 DK514+A中間A2 DK514+A中間A1 DK514+F左F2?、鮞DK514+F右F4 DK514+A中間A2?、鬮DK514+A中間A1 DK514+F左F2 DK514+F右F4 DK514+A中間A2 DK514+A中間A1 DK514+F左F2 DK514+F右F4 DK514+A中間A2 DK514+A中間A1 DK514+F左F2 DK514+F右F4 DK514+A中間A2 DK514+A中間A1 DK514+F左F2 DK514+F右F4 DK514+A中間A2 DK514+A中間A1 ⅢaDK514+F左F2 DK514+F右F4 DK514+A、C、C中間、左、右A2\C2\C4 DK514+A、C中間、左A1\C1 DK514+C右C4 DK514+F左F1 DK514+F右F3 DK514+A中間A1 DK514+A中間A2 DK514+A中間A1 DK514+A中間A2 DK514+F左F2 DK514+F右F3 DK514+A中間A1 DK514+A中間A2 DK514+A中間A1 DK514+A中間A2 DK514+F左F2 DK514+F右F3 DK514+A中間A1 DK514+A中間A2 DK514+A中間A1 DK514+A中間A2 DK514+F左F2 DK514+F右F3 DK514+A中間A1 DK514+A中間A2 DK514+A中間A1 DK514+A中間A2 DK514+F左F2 DK514+F右F3 DK514+C、C左、右C1\C3 DK514+A中間A2 DK514+A、C、C中間、左、右A1\C1\C3 DK514+F左F2 DK514+F右F3 DK514+A中間A1 DK514+F左F2 DK514+F右F3 DK514+A中間A2 DK514+A中間A1 DK514+F左F2 DK514+F右F3 DK514+A中間A2 DK514+A中間A1 DK514+F左F2 DK514+F右F3 DK514+A中間A1 DK514+A中間A2 DK514+F左F2 DK514+F右F3 DK514+A中間A2 DK514+A中間A1?、鬭DK514+F左F2 DK514+F右F3 DK514+A中間A1 DK514+A中間A2 DK514+F左F2 DK514+F右F3
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