基于弹性薄板理论的巷道层状顶板破坏的能量法分析  

The Destroy Mechanical Analysis of Tunnel with Stratified Roof

作　　者：孙伟[1] 谢飞鸿[2] 郭磊[2] 

机构地区：[1]黑龙江交通职业技术学院土木工程系,黑龙江齐齐哈尔161002 [2]兰州交通大学土木工程学院,甘肃兰州730070

出　　处：《石家庄铁道学院学报（自然科学版）》2009年第2期50-53,共4页Journal of Shijiazhuang Railway Institute

摘　　要：基于弹性薄板理论,利用能量方法对巷道层状顶板的破坏进行分析,阐述了层状顶板巷道围岩的变形破坏特征,得出顶板下沉的位移解析解,并进而确定了顶板岩层破坏的临界荷载。结果表明,用薄板理论研究层状顶板的下沉及应力分布规律是合理的。Based on the elastic thin plate theory, this paper analyzed the damage of tunnel stratified roof using the energy method, expounded the distortion destroy characteristic of tunnel with stratified roof, and worked out the displacement analytical solutions of roof sinking, and thus determined the critical load of roof rock destory. It is shown that plate theory is appropriate for analyzing the subsidence and stress field pattern of stratified roof.

关 键 词：巷道 层状顶板 弹性薄板理论 能量法 

分 类 号：TD322[矿业工程—矿井建设]