高水平应力条件下大断面巷道支护技术研究  

Study on Large Section Roadway Supporting Technology Under High Horizontal Stress

作　　者：闫飞[1] 严国超[1] 

机构地区：[1]太原理工大学矿业工程学院,山西太原030024

出　　处：《煤炭工程》2014年第7期34-36,共3页Coal Engineering

摘　　要：针对长平煤矿高水平应力条件下大断面沿底留顶巷道难以支护的现状,通过地应力测试、钻孔窥视、数值模拟等方法进行了巷道顶板围岩破坏分析。根据分析的结论,提出43042巷道沿顶布置支护方案,并通过设置测站实测表面位移、顶板离层、测力锚杆等方法对其稳定性进行了分析,验证了43042巷道支护方案的合理性。Aiming at the condition in Changping mine that the support is difficult under high horizontal stress for the largecross section roadway along the bottom with top coal remained, stress testing, drilling peep, numerical simulation andother methods were applied to analyze the surrounding rock failure of roadway roof. According to the conclusions, thesupporting scheme of 43042 roadway along the top was proposed, and the stability of the support was analyzed by settingobservation station to measure surface displacement, roof separation, rock - bolt dynamometer and other methods, thestability were analyzed to verify the rationality of 43042 roadway.

关 键 词：巷道支护 地应力 高水平应力 钻孔窥视 数值模拟 

分 类 号：TD823.84[矿业工程—煤矿开采]