摘要
已进入深部开采的观音堂煤矿,巷道部分地段出现了片帮、底鼓及顶板压力问题,造成了腿、梁弯曲、棚扭斜现象;而松帮卸压窝工费时,修复工程量大。为改变过去的被动修复为主动防御,观音堂煤矿针对目前的开采状况,采取了钻孔卸压技术,应用后减少了巷道变形,保证了巷道的安全。
While the mining process of Guanyintang Coal Mine was digging into the depth,in some area,rib spalling,the floor heave and the pressure acted on the roof appeared, consequently, the twisted phenomenon of legs,beams and shed occured. Solving these problems will need much time, and the restoration work is hard. In view of present mining conditions, the new pressure-release technology by drilling bore holes was used in Guanyintang Coal Mine,which reduced the deformation of the roadway. The application of this technology ensured the safety of roadway.
出处
《中州煤炭》
2009年第3期45-46,62,共3页
Zhongzhou Coal
关键词
压力
钻孔卸压
技术参数
煤矿安全
pressure
pressure-release technology by drilling bore holes
technical parameters
coal mine safety
