煤矿底板强含水层定向钻进注浆治理技术研究

Study on Treatment Technology of Directional Drilling and Grouting in Strong Aquifer of Coal Mine Floor

为保障成庄矿5314工作面回采安全,进行了3号煤层底板强含水层定向钻进注浆治理实践,对底板奥陶系上部含水层透水性进行了探查,并进行了含水层透水性降低改造。定向钻孔注浆后,5314工作面底板未发生突水,有效实现了5314工作面的安全回采。

In order to ensure the mining safety of the 5314 working face of Chengzhuang Coal Mine,the directional drilling and grouting treatment practice of the strong aquifer on the floor of the 3#coal seam was carried out,the permeability of the upper Ordovician aquifer on the floor was explored,and the the transformation of aquifer permeability reduction was carried out.After directional drilling and grouting,there was no water inrush from the floor of working face 5314,which effectively realized the safe mining of working face 5314.