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为了确定水平应力对深井软岩巷道底鼓的影响,采用数值模拟软件FLAC3D对不同岩性、不同侧压系数的巷道变形破坏情况进行了研究。结果表明,岩性较弱时,侧压系数对巷道变形影响较大,侧压系数<1时,巷道顶板下沉量较大,侧压系数>1时,两帮变形量及底鼓量较大,且侧压系数越大,两帮变形量及底鼓量越大。
In order to determine the influence of horizontal stress on the bottom drum of soft rock roadway in deep mine, numerical simulation software FLAC3D was used to study the deformation and failure of roadway with different lithology and different lateral pressure coefficient. The results show that when the lithology is weak, the lateral pressure coefficient has a great influence on the roadway deformation. When the lateral pressure coefficient is less than 1, the roadway roof subsidence is large and the lateral pressure coefficient> 1, Large, and the greater the lateral pressure coefficient, the amount of deformation of the two gangs and the greater the amount of bottom drum.