赵家寨煤矿首采工作面注浆加固模式设计与实践

Mode Design and Practice of Grouting Enhancing Technology in the First Working Face of Zhaojiazhai Coal Mine

为使承压水害防治科学化,采用工作面底板注浆加固改造模式设计,在运输巷合理布置钻场和注浆钻孔,实现了注浆技术参数、注浆改造深度及段高数值的定量化。实践表明防治水效果较好,确保了大型基建矿井首采工作面如期试产。

In order to prevent and control the confined water damage more scientifically, adopt the model of working face floor grouting design and technology,rational arrangement of drill field and drillholes were arranged in the haulage roadway,which achieved the quantitative of the grouting technical parameters, grouting depth and high-value segment. Practice shows that the effect of prevention and treatment of water is good, and the method ensures large-scale infrastructure projects on schedule well in the first mining face.