采矿与安全工程学报2016，Vol.33Issue(2)：226-230,237,6.DOI:10.13545/j.cnki.jmse.2016.02.006
巨厚煤层软弱覆岩分层综放开采覆岩破坏高度研究
Failure height of weak overburden by layered fully-mechanized mining in extremely thick coal seam
摘要
Abstract
To determine the failure characteristics of weak overburden by layered fully-mechanized top coal caving mining, numerical calculation, micro seismic monitoring and transient electromagnetic methods were used in 55003 panel in Laohutai mine to analyze failure height of overburden strata and the relationship between the failure height of overburden and extraction thickness. The results show that the failure height of overburden is linearly related to the extraction thickness under the condition of weak overburden in Fushun mining area, and the failure height of overburden is 8.4 times of extraction thickness. The failure height of overburden with weak layers is smaller than hard overburden in ex-tremely thick coal seam mining. The overburden fracture is mainly controlled by rock structure includ-ing oil shale and green shale, and also influenced by F7 fault and F7-1 fault.关键词
巨厚煤层/软弱覆岩/分层综放开采/破坏高度Key words
extremely thick coal seam/weak overburden/layered fully-mechanized top coal caving/failure height分类
建筑与水利引用本文复制引用
韩军,张宏伟,高照宇,荣海,赵象卓,杨发武,王景新..巨厚煤层软弱覆岩分层综放开采覆岩破坏高度研究[J].采矿与安全工程学报,2016,33(2):226-230,237,6.基金项目
辽宁省教育厅基金项目(L2012106) （L2012106）
