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在数值模拟的基础上，研究了地应力大小及方向对沿空巷道表面位移、深部位移、锚杆布置及护巷煤柱尺寸等的影响，同时对研究结果在现场的应用情况进行了分析．从地应力影响的角度研究了窄煤柱护巷巷道采用锚杆支护的可行性．研究结果表明：地应力（尤其是最大水平主应力）的大小及方向是影响锚杆支护巷道围岩稳定性的关键因素之一，最大水平主应力与巷道轴线的夹角愈小愈有利于巷道围岩的稳定．研究结果不仅为确定合理的护巷煤柱尺寸，而且为科学、合理设计回采巷道锚杆的支护参数提供了依据
On the basis of numerical simulation, the effects of the size and direction of in-situ stress on surface displacement, deep displacement, bolt arrangement and size of coal pillar are studied. At the same time, the application of the research results in the field is analyzed. From the perspective of geostress, the feasibility of bolting with narrow coal pillar roadways is studied. The results show that the size and direction of the ground stress (especially the maximum horizontal principal stress) are one of the key factors that affect the stability of surrounding rock of roadway supported by bolt. The smaller the angle between the maximum horizontal principal stress and the tunnel axis is, Roadway rock stability. The results not only provide a basis for determining the size of bollards for roadway protection, but also for scientifically and reasonably designing the bolting parameters of roadway