迎采动掘进巷道留设合理煤柱宽度研究
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摘要
针对钱营孜煤矿W3_225工作面风巷迎采动掘进留设合理煤柱宽度的问题,通过理论计算、FLAC~(3D)软件模拟以及现场实测等研究方法进行研究。结果表明:煤矿钱营孜W3_225工作面风巷留设20 m煤柱,能够保证巷道的稳定性;同时可以提高采出率,降低资源浪费,增加企业效益。
In order to solve the problem of reasonable coal pillar width for the excavation roadway of facing heading mining in return airway of W3_225 working face of Qianyingzi coal mine. Studies by the theoretical analysis FLAC~(3D) numerical simulation and field measurement research methods. The results show that: 20 m coal pillars,reserved for the return airway of W3_225 working face in the coal mine Qianyingjing, can ensure the stability of the roadway. At the same time, it can increase the production rate, reduce the waste of resources and increase the efficiency of the enterprise.
In order to solve the problem of reasonable coal pillar width for the excavation roadway of facing heading mining in return airway of W3_225 working face of Qianyingzi coal mine. Studies by the theoretical analysis FLAC~(3D) numerical simulation and field measurement research methods. The results show that: 20 m coal pillars,reserved for the return airway of W3_225 working face in the coal mine Qianyingjing, can ensure the stability of the roadway. At the same time, it can increase the production rate, reduce the waste of resources and increase the efficiency of the enterprise.
引文
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[4]何川,孟宁康,神文龙.迎采动面沿空掘巷合理煤柱宽度研究[J].煤炭技术,2017,36(6):93-95.
[5]孟海东,田睿,徐严军.迎采动沿空掘巷窄煤柱合理宽度的研究[J].煤炭工程,2017,49(9):36-39.
[6]郭崇.保德煤矿8#煤层合理区段煤柱尺寸留设研究[J].煤炭工程,2016,48(S1):12-15.