矩形巷道周边应力集中系数的计算与巷道支护  

Calculation of stress concentration factor of rectangular laneway rims and support of laneways

作　　者：李振雷[1] 冯宇峰[1] 孙永康[1] 高鹏飞[1] 

机构地区：[1]中国矿业大学矿业工程学院,江苏徐州221008

出　　处：《矿山机械》2010年第19期7-11,共5页Mining & Processing Equipment

基　　金：中国矿业大学煤炭资源安全开采国家重点实验室2007年开放基金项目(07KF04);"大学生实践创新训练计划项目"中国矿业大学青年科研基金项目(2007A006)

摘　　要：介绍了边界元法和边界元应力法的基本原理,并分别采用边界元应力法和已推导的复变函数公式对矩形巷道进行计算,得到周边关键点的应力集中系数,并将两种计算结果进行对比,得出相同的应力分布规律;在原理上提出矩形巷道采用桁架锚杆支护系统进行支护。After the basic theory of boundary element method and fictional stress boundary element method being introduced,calculation of rectangular laneway was carried out by means of fictional stress boundary element method and formulas of complex variable functions,and then the stress concentration factors of the key points at laneway rims were obtained.With the contrast of the two calculation results,the same rule of stress distribution was obtained.The conclusion is proposed theoretically that the truss bolting system is suitable for the support of rectangular laneways.

关 键 词：应力分布 应力集中系数 边界元应力法 复变函数 桁架锚杆 

分 类 号：TD311[矿业工程—矿井建设] TD353