摘要
以南屯煤矿深部采空区下沿空巷道为工程背景,采用现场调研、室内试验及数值模拟等研究方法,深入分析围岩变形破坏产生的原因、变形特征及力学机理,结合NPR锚杆/索的力学特性,提出了以NPR锚杆索为核心的恒阻大变形耦合控制对策,现场应用效果良好,具有重要的借鉴意义。
Based on the engineering background of gob side entry roadway in deep gob of Nantun Mine,the causes,deformation characteristics and mechanics mechanism of surrounding rock deformation and failure were deeply analyzed by means of field investigation,laboratory test and numerical simulation.Considering the mechanical characteristics of NPR bolt/cable,a constant resistance and large deformation coupling control measures with NPR bolt cable as the core was proposed.The combined control strategy had favorable effect in field application and had important reference significance.
作者
王九红
祖贺军
高蕾
夏兴
Wang Jiuhong;Zu Hejun;Gao Lei;Xia Xing(Yanzhou Coal Mining Co.,Ltd.,Jining,Shandong 273500,China;Nantun Mine,Yanzhou Coal Mining Co.,Ltd.,Jining,Shandong 273500,China;State Key Laboratory for Geomechanics&Deep Underground Engineering,China University of Mining&Technology,Beijing,Haidian,Beijing 100083,China)
出处
《中国煤炭》
2018年第12期60-66,71,共8页
China Coal
关键词
沿空巷道
数值模拟
恒阻大变形
耦合支护
gob side entry roadway
numerical simulation
constant resistance and large deformation
coupling support
