节点文献
老顶边界条件下采场矿压显现规律及直接顶破坏模式
Longwall Face Roof Behaviour and Immediate Roof Failure Pattern under Main Roof upper Boundary
【摘要】 运用数值计算方法,分析了老顶在断裂前后及不同来压步距时对采场围岩的位移及应力状态的影响,为揭示采场顶板的稳定性提供了依据。
【Abstract】 Using numerical method,influences of pre fracture and post fracture, and different weighting paces of main roof on displacement and stress state of surrounding rocks are analysed. Immediate roof failure pattern under main roof upper boundary is also studied.
【关键词】 老顶边界;
矿压显现;
直接顶;
破坏模式;
【Key words】 main roof boundary; roof behaviour; immediate roof; failure pattern;
【Key words】 main roof boundary; roof behaviour; immediate roof; failure pattern;
【基金】 煤炭科学基金
- 【文献出处】 太原理工大学学报 ,JOURNAL OF TAIYUAN UNIVERSITY OF TECHNOLOGY , 编辑部邮箱 ,1998年02期
- 【分类号】TD325.1,
- 【被引频次】13
- 【下载频次】121