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机构地区:[1]太原理工大学矿业工程学院,山西太原030024 [2]华北科技学院安全工程学院,北京065201
出 处:《煤矿安全》2014年第4期32-35,共4页Safety in Coal Mines
基 金:国家自然科学基金资助项目(40772152)
摘 要:轩岗矿区刘家梁矿井西大巷80年代先后发生6次较大的底板突水,而突水地点均为高导升发育,消弱了底板隔水层的阻水能力。目前5124工作面开采的5#煤层又属于"三软"煤层,给安全生产带来更多威胁。根据"三软"高导升引发的突水情况,利用相似材料和FLAC3D软件对导升裂隙沿煤层底板隔水层向上入侵进行模拟研究,再现了整个突水过程,为"三软"高导升底板突水的防治提供了一定的理论依据。Great floor water inrush happened six times at west main roadway in Liujialiang Coal Mine of Xuangang Mining Area in 1980s. The water inrush locations were the places of high intrusion, which weakened water -blocking ability of floor aquiclude. At present, the coal seam 5# in working face 5124 was "three - soft" coal seam, and this condition brought more threats to safety produc- tion. According to the water inrush conditions induced by " three - soft" coal seam with high intrusion, it carried out simulation re- search for progressive intrusion of floor aquielude with similar materials and the FLAC3D software, which revealed the whole process of water inrush and provided a certain theoretical basis for the prevention and control of the floor water inrush in "three - soft" coal seam with high intrusion.
关 键 词:底板突水 “三软”煤层 高导升 相似模拟 FLAC3D软件
分 类 号:TD745[矿业工程—矿井通风与安全]
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