高抽巷支护设计与实践
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摘要
瓦斯事故给煤矿安全生产带来了很多的不良影响,而布置高抽巷道是一种有效抽放瓦斯的方法。在8103高抽巷实践过程中,从锚索长度的计算出发,结合煤层顶底板岩性,通过确定锚索排数及锚固力设计,对不同支护方式的适用范围进行了论证,确定了不同施工条件和施工阶段各方式的选择标准。结合护帮方式对高抽巷道的支护进行了设计,工程实际取得了良好效果。
The gas accident has brought many adverse effects to the safety production of coal mines,and the arrangement of high drainage roadway is an effective method of gas control. In the practice of high drainage roadway support in No. 8103 working face,combined with the lithology of coal seam roof and floor,the different supporting modes was designed based on the different construction conditions and construction stages,which achieves good results.
The gas accident has brought many adverse effects to the safety production of coal mines,and the arrangement of high drainage roadway is an effective method of gas control. In the practice of high drainage roadway support in No. 8103 working face,combined with the lithology of coal seam roof and floor,the different supporting modes was designed based on the different construction conditions and construction stages,which achieves good results.
引文
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[4]王兆丰,刘军.我国煤矿瓦斯抽放存在的问题及对策探讨[J].煤矿安全,2005,36(3):29-32.
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