The deformation and stability mechanisms of pelitic soft rock drift under rich water condition are more complicated than those of the general ones.
英
美
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富水條件下泥質(zhì)軟巖巷道破壞及穩定性機制比一般軟巖巷道更復雜;不僅需要采用多種復合支護控制圍巖非線(xiàn)性大變形;還必須進(jìn)一步控制其泥化進(jìn)程.
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国内精品美女A∨在线播放xuan