Simulation Study on Deformation-Failure of Roof on Coal Mining Overlapping Face Using Discrete Element Method

摘要：

The paper simulates to deformation-failure of roof on caving of overlapping face using discrete element method, and obtain basic data on the distribution features of stress on overburden rock and growth law of water flowing fractured zone while mining. The simulation shows that caving of overlapping could lead to obvious increase of the damage height of coal roof. And, the increased water flowing fractured zone could probably touch the aquifer. As a research result, we can guide the rpof water preventing work in coal mining.

关键词： Discrete element method caving of overlapping water flowing fractured zone roof water prevention

作者: Liu Qimeng Li Wenping Li Xiaoqin Sun Ruhua

作者单位: School of Earth and Environment, Anhui University of Science and Technology, Huainan 232001 China School of Resources and Earth Science, China University of Mining and Technology, Xuzhou 221008 Chin

会议类型: 国际会议

会议名称: The 3rd International Symposium on Modern Mining & Safety Technology Proceedings(第三届现代采矿与安全技术国际学术会议)

会议地点: 辽宁阜新

会议语种:英文

页码: 63-66

在线出版日期: 2008-08-04（万方平台首次上网日期，不代表论文的发表时间）