摘要
为解决松散富水巷道底板加固难题,采用先疏水降压再注浆堵水加固的方案,使用注浆封孔器对底板进行开放式注浆加固围岩,通过布置密集注浆钻孔和应用高灰水比水泥—水玻璃速凝浆液成功完成对动水松散围岩的堵水和加固。
In order to solve the problem of strengthening the watery loose strata of roadway floor, the scheme of hydrophobic depressurization and then grouting water plugging and strengthening was adopted, the wall rock was reinforced by open grouting on the floor with grouting packer. The quick coagulation slurry of sodium silicate could successfully complete the water plugging and strengthening of the moving watery loose strata wall rock by intensive grouting drilling and the application of high ash water ratio cement.
作者
周帅
韩世航
李旭明
Zhou Shuai;Han Shichao;Li Xuming(Jiulong Mine,Fengfeng Group Corporation Ltd.,Jizhong Energy,Handan 056200,China)
出处
《煤炭与化工》
CAS
2018年第10期71-73,76,共4页
Coal and Chemical Industry
关键词
松散富水
疏水降压
注浆封孔器
水玻璃
watery loose strata
draining depressurizafion
grouting packer
sodium silicate
