In this work, a numerical study is conducted on the seismic response of deep-buried roadways in coal mines under the influence of goafs, and a 3D numerical model of the seismic response simulation of deep-buried roadways is established using the coupling model of the finite difference method and the distinct element method. This model simulates the seismic response of different coal pillar widths and the seismic conditions of the deep-buried roadways under the influence of the adjacent goafs. The deformation, stress distribution, and plastic area distribution of roadways and coal pillars are systematically studied, and the situations under the static load and the roadways, which are not affected by the goafs, are compared and analyzed. A reasonable width of the coal pillar is proposed on the basis of the stability of the roadway and the coal pillars. In the end, suggestions for the reasonable setting of coal pillars under seismic load are provided.

中文翻译：

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相邻采空区影响下深部地下巷道及煤柱的地震响应分析

本文对采空区影响下煤矿深埋巷道地震响应进行数值研究，并利用该耦合模型建立了深埋巷道地震响应模拟的三维数值模型。有限差分法和离散元法。该模型模拟了不同煤柱宽度的地震响应以及相邻采空区影响下深埋巷道的地震条件。系统地研究了巷道和煤柱的变形、应力分布和塑性区分布，对比分析了巷道静载和不受采空区影响的巷道情况。根据巷道和煤柱的稳定性，提出合理的煤柱宽度。最后对地震荷载作用下煤柱的合理设置提出建议。