Mechanism of surface subsidence controlled by intermittent longwall face mining
Based on the subsidence predication theory of Tongchuan Mining area, in combination with the observed data of Tongchuan Mining area, the computer predication and numerical simulation software is used and basic characteristics of surface subsidence of the mine are analyzed together with intermittent longwall mining method through leaving in intervals pillar.The mining damage caused by intermittent longwall mining method and single face mining method was compared and analyzed.The results show that after leaving in intermittent intervals pillar,the subsidence caused by two small mining face is rather less than the single mining face condition, it greatly reduced the surface damage.The research of this paper provides an effective way to solve under three circumstances coal areas safe mining problem, and it has a certain theoretical and practical value.
Intervals pillar Surface subsidence Mining damage Movement and deformation
FuquanTang Jian Zhang
College of Geomatics, Xian University of Science and Technology, Xian 710054, 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
127-132
2015-10-16（万方平台首次上网日期，不代表论文的发表时间）