山体下急倾斜煤层合理区段煤柱留设研究OA
Study on reasonable section coal pillar retention of steep coal seam under mountain
针对山体地貌下急倾斜煤层区段煤柱失稳易导致煤柱群联动失稳,造成顶板大面积裂隙贯穿至地表发生山体滑坡等地质灾害问题,以西南逢春煤矿N2821工作面为工程背景,建立了山体下急倾斜煤层区段煤柱受力模型,分析了山体下急倾斜煤柱失稳必要条件与合理尺寸计算;综合利用Local Space-Viewer、ArcMap、Rhino3D软件对西南逢春煤矿地形等高线获取、处理、三维地貌网格生产,导入FLAC3D软件中建立三维山体地貌特征数值模型,研究山体下急倾斜煤层…查看全部>>
Aiming at the coal pillar instability in steep coal seam section under the mountain landform,it is easy to cause the coal pillar group linkage instability,resulting in large cracks in the roof penetrating through to the surface of the landslide and other geological disasters.Based on No.N2821 Face of Fengchun Mine in southwest China,a coal pillar stress model was established to analyze the necessary conditions and reasonable size calculation of the coal pill…查看全部>>
舒梅
煤炭工业石家庄设计研究院有限公司贵州分公司,贵州贵阳 550000
矿山工程
山体地貌急倾斜煤柱承载应力煤柱留设
mountain landformsteeply inclined coal pillarload bearing stresscoal pillar retention
《煤炭与化工》 2024 (4)
18-24,7
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