STUDY ON THE MECHANISM OF SURFACE COLLAPSE ABOVE THE FOOTWALL
An underground mining strata movement dynamic analyzing model is established according to the operation process with sublevel caving method and the flowing characteristics of the collapsed strata, in which different areas and strata are given different mechanical parameters respectively and FLAC is used as a computing tool. Computing results of Jinshandian Iron Ore Mines Yuhuasi Operation show that when mining operation is above level -150m, the footwall strata movement angle and collapse angle is small and the strata deformation becomes mild when the operation proceeds. The major factors affecting the foot wall strata deformation include the strata state, dip of the ore body, and the thickness of the ore body and mining method.
QING-YUN CHEN MING ZHOU SHUI-PING WANG LIN-FANG MEI
Department of Environment and Civil Engineering, Wuhan Institute of Technology Wuhan, 430073, P.R.Ch Jinshandian Iron Ore Mine, Mineral & Company, Ltd.WISCO Huangshi, 435116, P.R.China Daye Iron OreMine, Mineral & Company, Ltd.WISCO Huangshi, 435006, PR.China
国际会议
The 7th International Symposium on Rockburst and Seismicity in Mines(2009年第七届国际岩爆与微振动性学术研讨会)
大连
英文
1425-1432
2009-08-21（万方平台首次上网日期，不代表论文的发表时间）