陕北侏罗纪浅埋坚硬厚煤层注水致裂试验研究

Hard Thick Coal Seam Injection Fracturing Test of the Jurassic Shallow in Northern Shaanxi

摘要: 神南红柳林矿业有限公司主要开采的侏罗纪浅埋5−2煤工作面首采段坚硬难割且煤尘大，采用煤体钻孔动静压注水技术工艺达到降尘及降低煤体强度目的，对5−2煤体注水可注性和注水后煤含水率变化规律及强度变化规律进行采样测试和分析总结，对进一步努力方向进行了展望。

Abstract: The God South Red Liulin Mining Co. Company mainly mines Jurassic shallow 5−2 coal mining section of hard cutting and much coal dust. The borehole coal static pressure injection technology is adopted to reduce the dust and the strength of coal body. Sampling test and analysis about the change rule of the moisture content and intensity of the 5−2 coal injection and after injection are done, and the direction for further efforts is discussed.