The rheologic model has been used to analyze the interaction between shaft wall and viscoelasticviscoplastic surrounding rock in soft rock stratum.
利用流变介质模型，分析软岩立并并壁与粘弹塑性围岩的相互作用。
The vital problems to be solved in Shendong mine are the dynamic pressure damage of thin rock strata roof under thick sandy soil soft stratum and the loss of water and soil under mining.
浅埋煤层薄基岩厚砂土松散层顶板动压灾害和采动水土流失是神东矿区急需解决的重大问题之一。
The normal production of a mine may be seriously influenced because of low strength and poor cementation of loose surrounding rock of roadway in soft stratum.
由于软岩巷道围岩松散、 强度低、胶结程度差，已严重影响矿山的正常生产。
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