Numerical Simulation of Gob Stress Status in Gently Inclined Gypsum
For the safety of the under stratum mining, the stress status of the gobs must be predetermined, then following the evaluation of stability and corresponding disposal measures. With numerical simulation technique, the gob stress status in gently inclined gypsum mining was studied based on the actual conditions of Longyao gypsum mine. In the paper, the methods of three-dimensional elastic-plastic method is used to simulating and appraising the stability of the gob in Longyao gypsum mine. Due to friction action of the soft roof and floor, the horizontal deformation of the soft roof and floor is as much as some place even larger than the deformation of the pillar and this lead to tensile failure of the pillar. The numerical simulation results would provide special technique foundation for the research of the mining approach and the gob transactions test of the gypsum mine.
gently-inclined gypsum mining gypsum gob numerical simulation
HE Jiaoyun WANG Guanbao ZHAND Shixiong
School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan 430070, Hubei, China
国际会议
The 2007 International Symposium on Safety Science and Technology(2007采矿科学与安全技术国际学术会议)
河南焦作
英文
248-252
2007-04-17（万方平台首次上网日期，不代表论文的发表时间）