采空区下薄煤层综采工作面护巷煤柱合理宽度研究

摘要

To determine the width of chain pillars in the caving process of thin coal seams of the lower part of close distance shallow seam group, taking the chain pillars of No.431 panel working face of Liangshuijing Mine as the study object, the effect of different width of pillars on the stability was studied by theoretical analysis and numerical simulation, which could be useful for the coal pillars in the similar mining condition.%为研究近距离浅埋煤层群下部薄煤层回采过程中护巷煤柱的宽度，以凉水井矿431盘区工作面护巷煤柱为研究对象，采用理论分析和数值模拟的方法，研究了不同煤柱宽度对煤柱稳定性的影响，为类似开采条件下的煤柱留设提供了参考。