寺家庄公司煤巷掘进快速消突技术研究

Study on Technology of Fast Outburst Removal in Coal Roadway Drivage in Sijiazhuang Comp.

通过在寺家庄公司15104运输顺槽掘进工作面进行水力挤出试验,探讨了水力挤出在掘进消突的钻孔布置参数及注水参数,分析了注水前后K1值的变化情况。水力挤出可有效地消除激发突出的应力,大幅度地释放煤体中的瓦斯,增大了煤体抑制突出的阻力,很好地起到了综合防突的作用。

Through the test of hydraulic squeeze - out at the driving face in No. 15104 transporting erossheading in Sijiazhuang Comp., The parameters of drilling arrangement and water injection of hydraulic squeeze - out in driving and removing outburst were discussed. The change of K1 before and after water injection was analyzed. Hydraulic squeezeout can effectively remove the stree of exciting outburst, significantly release the gas in coal, increase the coal resistance of controlling the coal and gas outburst, play a good role in the comprehensive prevention of coal and gas outburst.