• Summary: quicksand layer appears in the sinking and driving engineering will give well engineering excavation work caused a certain degree of interference, which can even lead to security incidents.

    论文发表网-摘要:井巷工程出现流沙井巷工程挖掘工作造成一定干扰,严重时甚至导致安全事故

    youdao

  • Summary: quicksand layer appears in the sinking and driving engineering will give well engineering excavation work caused a certain degree of interference, which can even lead to security incidents.

    论文发表网-摘要:井巷工程出现流沙井巷工程挖掘工作造成一定干扰,严重时甚至导致安全事故

    youdao

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