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主要研究近距离煤层开采过程中动压对底板巷道稳定性的影响,借助数值模拟手段得到:动压是巷道变形的主要原因,巷道的变形破坏规律与其和工作面相对位置关系有密切的关联,靠近工作面侧的围岩强度及自稳能力受到很大程度的削弱。受动压影响时,巷道两侧变形不均匀,且受到强烈的偏心载荷作用。
This paper mainly studies the effect of dynamic pressure on the stability of floor roadway during the mining process of short distance coal seam. By means of numerical simulation, dynamic pressure is the main reason of roadway deformation. The deformation and failure regularity of roadway is closely related to its relative position, The strength and self-stability of surrounding rock near the working face are greatly weakened. Affected by dynamic pressure, the deformation of the roadway on both sides is uneven, and subject to a strong eccentric load.