摘要
为治理断层所引起的超高冒顶,根据高水材料可速凝、初期强度高、流动性好、凝固时间可调和渗透性强的特点,采用高水材料注浆成功治理了新桥煤矿-550 m水平南翼运输大巷的超高冒顶区,封堵了高达8.5 m左右的冒落空洞,并加固了冒落区的围岩,提高了破碎围岩的整体性和稳定性,有效防止了冒落空洞的再次冒顶和坍塌。
In order to handle the ultra high roof failing occurred by the fauh, according to the quick setting, initial high strength, good flowability, adjustable setting time and high permeability and other features of the high water content material, the high water content ma- terial was successfully applied to handle the ultra high roof failing in -550 m level south wing transportation roadway of Xinqiao Coal Mine. A roof failing cave with about 8.5 m height was sealed and the surrounding rocks of the roof failing zone were reinforced. The inte- grality and the stability of the broken surrounding rocks were improved and the re-failing and caving of the failing cave could be effectively prevented and controlled.
出处
《煤炭科学技术》
CAS
北大核心
2009年第8期21-23,共3页
Coal Science and Technology
关键词
高水速凝充填材料
巷道
超高冒顶
注浆加固
high water content and quick setting backfilling material
mine gateway
ultra high roof failing
grouting reinforcement
