The Numerical Simulation of Rock Slope Deformation for Transition from Yanqianshan Open-pit to Underground Mining

摘要：

　　The rock slope will encounter large deformation and damage during the transfition from Yanqianshan openpit mining to underground mining.The numerical simulation with FLAC large deformation mode was carried out to analyze mine excavation characteristics in different depth.The soft rock mass in North slope collapse easily and heavily.But the sliding is not rapid usually.The influence to underground mining is small.Large number of small crushed stones will fill the rock layer.It is unfavorable to control the dilution and loss index.The hard rock mass in South slope have not appeared large deformation and sliding during primary mining.

关键词： large deformation mode FLAC numerical simulation transfer from open pit to underground mining slope stability

作者: Chang Laishan Zhang Zhentao Tao Donghai

作者单位: Mining Engineering Institute of University of Science and Technology Liaoning,Anshan , 114051, China An Steel Mining Corporation,Anshan, 114001, China

会议类型: 国际会议

会议名称: International Symposium on Rock Mechanics and Mine Dynamic Disaster Prevention(岩石力学与矿井动力灾害防治国际学术研讨会)

会议地点: 辽宁阜新

会议语种:英文

页码: 83-86

在线出版日期: 2013-07-13（万方平台首次上网日期，不代表论文的发表时间）