Erlangshan tunnel

  • 网络二郎山隧道
Erlangshan tunnelErlangshan tunnel
  1. The extra-long Erlangshan Highway Tunnel is a one-tube , two-lane tunnel with a very complex ventilation design , therefore it results in extremely high cost .

    二郎山特长公路隧道为单洞双车道隧道,运营通风设计十分复杂,通风工程费用十分昂贵。