下分层综放开采矿山压力控制  

GROUND CONTROL IN FULLY MECHANIZED SUBLEVEL CAVING IN BOTTOM SLICE

作　　者：张顶立[1] 

机构地区：[1]中国矿业大学采矿系

出　　处：《岩石力学与工程学报》1998年第2期159-166,共8页Chinese Journal of Rock Mechanics and Engineering

摘　　要：在大量现场实测与理论研究的基础上，建立了下分层综放开采的覆岩结构模型，并对大、小结构的稳定性及其对矿压显现的影响进行了分析。深入分析了层间顶煤的破碎特点，指出层间顶煤的破碎效果是多因素综合作用的结果，而在不同的开采条件下将具有不同的放顶煤效果。所得结论已在三河尖矿下分层综放开采的矿山压力控制实践中得到了应用，并取得了较好的效果。Based on the field measurement and theoretical analysis, the model of strata structure over the coal face is established with fully mechanized sublevel caving in bottom slice. The stability of main and immediate roof structure and its influence on strata behaviour are analysed. The failure features of roof coal between top and bottom slice are thoroughly studied. It is pointed out that breaking of the roof coal is a combined effect of many influence factors, while different caving effects will be got under different mining conditions. The research results have been applied to ground control practice for sublevel caving in bottom slice at Sanhejian coal mine, and an obvious effect has been made in practice.

关 键 词：下分层综放开采 厚煤层 矿山压力控制 层间顶煤 

分 类 号：TD823.253[矿业工程—煤矿开采] TD32[矿业工程—矿山开采]