工作面本煤层抽放钻孔喷浆注浆提高抽采浓度技术研究

Study on the Technology of Improving the Drainage Concentration by Using the Borehole Jet Grouting in the Coal Seam

以山西阳泉煤业(集团)有限责任公司三矿5号煤层瓦斯抽放效果为主要研究对象,阐述了目前矿井的瓦斯参数基本情况,主要从喷浆注浆对钻孔瓦斯抽采的影响进行分析,根据现场本煤层抽放过程中喷浆及喷浆工艺的选择进行探讨。研究表明,喷浆注浆工艺能够显著提高煤层钻孔的瓦斯抽采效率。

Taking the gas drainage effect of Shanxi Yangquan Coal Industry （Group） as the main research , this paper expounds the basic situation of the mine gas parameters at present, mainly from the shotcrete grouting on the borehole gas drainage effect analysis were discussed, and the coal field according to shoterete shotcrete layer drainage in the process of selection of studies showed that spraying grouting technology can significantly improve the seam gas drainage efficiency.