Rules and mechanism of surface subsidence in deep coal mining
For the problems in subsidence prediction and control in the deep coal mining, the strata movement mechanism of deep coal mining was analyzed, the rule of surface subsidence was got combining the deep mining rock movement observation project in one mine of Tiefa coal industry group.The results show that in the condition of subcritical deep extraction the surface has smaller subsidence values, the subsidence rate is smaller, the active period is not obvious.the ground subside as a whole within a certain range, influence range expanded, surface subsidence coefficient decreases, probability integral method parameters must be revised to improve the subsidence prediction precision.The research results will provide references for the surface subsidence prediction and rock strata control in deep coal mining.
Deep coal mining Surface subsidence Rock strata movement mechanism
Junhai Gao Guoliang Bai
Tangshan Research Institute Co., Ltd., China Coal Technology & Engineering Group, Tangshan 063012, China;Tangshan Branch, Tiandi Mining Technology Co., LTD.,Tangshan 063012, China
国际会议
2015 International Academic Forum for Mine Surveying in China(2015中国国际矿山测量学术论坛)
北京
英文
112-116
2015-10-16（万方平台首次上网日期，不代表论文的发表时间）