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

作　　者：刘涛[1] 李梓源[1] LIU Tao;LI Zi -yuan(State Key Laboratory Fostering Base of Mine Disaster Prevention and Control Co-founded by Shandong Province and the Ministry of Science and Technology ,Shandong University of Science and Technology ,Qingdao 266590, Chin)

机构地区：[1]山东科技大学矿山灾害预防控制省部共建国家重点实验室培育基地,山东青岛266590

出　　处：《煤炭技术》2018年第7期86-89,共4页Coal Technology

摘　　要：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.

关 键 词：最大水平应力 巷道布置 夹角 围岩稳定性 

分 类 号：TD32[矿业工程—矿井建设]