双墙注浆法处理防火墙漏风技术

The Technology of Using Dual Wall Grouting Method to Deal With Air Leakage of Firewall

采煤工作面回采结束后,利用传统方法在机、风两巷构筑的防火墙在矿压的作用下墙体及围岩被不断的压出裂缝,虽然经常维护也难以完全杜绝漏风。采用砌筑2道防火墙,利用注浆泵在两墙中间注入粉煤灰浆的方法,可有效杜绝防火墙漏风。

After the end of working face mining, the firewall that is built in the machine and wind two lanes will appears fissures constantly under the mine pressure by using the traditional method. It is difficuh to eliminate air leakage completely although regular maintenanee. The method of building two firewall, and between which are injected fly ash slurry, can effectively eliminate the air leakage of firewall.