摘要
对砚石台煤矿地应力进行了现场测试及非线性有限元计算，分析了地应力对冲击地压的影响．通过煤体强度实验建立了其强度准则，并结合工程实际建立了能量判据．在此基础上，对该矿６号煤层冲击地压的区域危险性进行了评价．
The in situ crustal stresses measurement and calculation of stresses by finite element method are carried out in Yanshitai Coal Mine. The effect of crustal stresses on rock burst are analyzed.Based on the strength test of coal, a criterion is set up. The criterion of energy is put forward in the light of engineering practice.Finally,the zone prone to rock burst in No.6 seam is evaluated.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
1997年第2期132-137,共6页
Journal of China Coal Society
基金
重庆市中青年专家基金
关键词
冲击地压
危险区域评价
地应力
矿井
rock burst,evaluation of risk zone, crustal stresses
