Numerical Simulation of Protective Coal Pillar Setup in Open-underground Combined Mining

摘要：

In order to study the setup of the safety coal pillar in Open-underground combined mining, in Pingzhuang West Open-pit and Wujia No.4 Mine for engineering background, simulated protective coal pillar width 400m,375m,350m mining process by FLAC3D numerical simulation software, get the stress and deformation curve of the slope and the factor of slope stability in different protective coal pillar width cases. Research shows that the factors of safety are more than 1 when protective coal pillar width are 400m,375m, landslide not occur. When the slope protective pillar is 350m, slope displacement occurred by a large margin, the factors of stability in 1, 2, 3 monitoring position were less than 1, landslide will happen. So make sure the width of coal protective pillar above 350m.

关键词： Open-underground combined mining protective coal pillar numerical simulation factor of safety

作者: XUE Juntao LI Sheng YI Zhihui

作者单位: College of Resourse and Environment Engineering, Liaoning Technical University, Fuxin 123000, Liaoni Fully-mechanized Coal Mining Team, Shenyang Coal Industry (group) Limited Liability Company Xima Min

会议类型: 国际会议

会议名称: The 2010 International Symposium on Safety Science and Technology(2010 安全科学与技术国际会议)

会议地点: 杭州

会议语种:英文

页码: 1374-1379

在线出版日期: 2010-10-26（万方平台首次上网日期，不代表论文的发表时间）