千米深井沿空掘巷区段煤柱合理宽度的研究

Study on Reasonable Width of Pillar in Gob Side Entry Driving in Kilometer Deep Well

基于采深达1000m、煤层强度低、区段煤柱宽度一般采用70m的宽煤柱这一状况,潘西煤矿通过工作面顶板岩性运动规律、工作面矿压研究及次生灾害防治研究分析,在6198工作面区段煤柱选定宽度6m最为合理,泄水巷外煤柱宽度14m的方案。实践证明,既节约了大量的煤炭资源,又能够保证防冲、防底板突水等次生灾害的需要。

Based on the condition that the mining depth is1000m,the strength of coal seam is low and the width of coal pillars is generally70m wide,Panxi Coal Mine has studied and analyzed the movement law of roof lithology,the pressure of working face and the prevention and control of secondary disasters.The width of coal pillars in6198working face is6m,and the width of coal pillars outside drainage roadway is14m.Practice has proved that it not only saves a lot of coal resources,but also guarantees the need of secondary disasters such as scour prevention and floor water inrush prevention.