Determination of Rock Mechnics Parameters Based on the Hoek-Brown Method

摘要：

　　Determination of rock mass mechanics parameters in numerical simulation is very important,introducing the basic principle of M.G eorgi method and Hoek Brown method that determining the mechanical parameters of rock mass,setting determination of rock mass mechanical parameters of lead-zinc deposit in Dongsheng miao research as a research example,based on the physical and mechanical parameters of rock specimens which were got by indoor laboratory test,and considering the effect of rock joints and fissures,and eventually determining rock mechanics parameters.Building the mine pillar recovery mode by use of FLAC numerical simulation software,putting rock mechanics parameters determined by two methods into the software to simulate on displacement,which simulating and monitoring No.8 pillar in 850 column,mined-out area in 900 column and roof in 980 column of No.2 ore body on subsidence displacement monitoring,and carry out microseismic monitoring in the corresponding position,and extracting and analyzing the monitoring data,the comparison analysis shows that the rock mass mechanics parameters determined by Hoek Brown method is more in line with the actual,which can be used as the basis data of numerical simulation on the mine pillar recovery,guiding the mine safety production.

关键词： HoekBrown rock mass parameters FLAC3D microseismic monitoring

作者: Zhang Fei Liu Defeng Wang Bin Jian Yurong Hun Kun Zhang Heng

作者单位: Mining Engineering College, Inner Mongolia University of Science and Technology,Baotou, 014010, Chin Inner Mongolia Dongshengmiao Mining Co., Ltd,Bayanzhuoer , 015543, 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: 188-194

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）