大采高厚坚硬顶板巷道定向爆破切顶卸压技术研究
刘乙霖, 马嘉伟
Research on the Technology of Cutting and Relieving Pressure by Directional Blasting in a Roadway with Large Mining Height, Thick and Hard Roof
煤炭工程 . 2022, (3): 50 -55 .  DOI: 10.11799/ce202203010