最大水平应力对巷道稳定性影响研究

Study on Influence of Maximum Horizontal Stress on Roadway Stability

水平应力是影响巷道围岩稳定的重要因素,针对最大水平主应力与巷道掘进方向夹角的3种特殊情况,模拟了巷道围岩的变形及破坏特征。所得结果用于评价某煤矿巷道布置,发现部分巷道沿着较为不利的方向掘进。此研究为选择巷道掘进方向和改进巷道支护方案提供了依据。

Horizontal stress is an important factor affecting the stability of roadway surrounding rock. The deformation and failure characteristics of roadway surrounding rock are simulated according to the three special conditions of the maximum horizontal principal stress and the direction of roadway excavation. The results are used to evaluate the layout of a coal mine roadway and find that some roadways are heading in unfavorable directions. The study provides a basis for selecting the direction of roadway excavation and improving roadway support scheme.