When advancing from No. 1 diversion tunnel location (DK 141+430), in July 2002, rail transport proposal was used, with LW backhoe loader and 12t battery car and 14m3 muck shifter.

 
  • 2002年2月施工至DK145+930后换装采用有轨运输,多功能开挖台架,人工手持风钻钻眼,LW-150挖掘装载机装碴,12t电瓶车牵引14m3梭式矿车出碴。
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