摘要
为解决回采工作面回风巷因大断面、高应力动压影响,出现变形大难于支护、断面面积无法满足回采期间通风及运输要求等问题,王庄煤矿在5218回风巷中通过采用钻孔卸压技术,很好地控制了围岩变形。
The return airway of coal mining face is often distorted seriously due to its big section and the high kinetic pressure against it and is difficult to be supported,and as a result,the area of the section turns out to be not sufficient of the ventilation and transportation for mining face.Wangzhuang Coal Mine controls the surrounding rock deformation in #5218 working face return airway by applying the technique of pressure relief by drills.
出处
《中国煤炭》
北大核心
2011年第3期69-71,共3页
China Coal
关键词
煤巷掘进
动压巷道
围岩控制
钻孔卸压
coal drift excavation
kinetic pressure tunnel
surrounding rock controlling
pressure relief by drills
