摘要
针对目前大同矿区回采巷道受坚硬顶板影响围岩控制困难的问题,采用理论分析的手段研究了巷道顶板预裂原理,通过探究定向聚能爆破顶板预裂切缝技术、水力切割切顶卸压技术和二氧化碳致裂技术的技术特征以及在大同矿区回采巷道的应用效果,得出水力切割切顶卸压技术是可在矿区内广泛推广应用的技术手段。
In view of the difficulty of surrounding rock control caused by the influence of hard roof in the mining roadway of Datong mining area,this paper studies and analyzes the principle of roadway roof pre-splitting,and explores the technical characteristics of directional cumulative blasting roof pre-splitting cutting technology,hydraulic cutting roof pressure relief technology and carbon dioxide fracturing technology,as well as the application effect in the mining roadway of Datong mining area.It is concluded that hydraulic cutting roof pressure relief technology can be widely used in mining area.
作者
牛福龙
Niu Fulong(Jinneng Holding Group Co.,Ltd.Datong Shanxi 037003)
出处
《同煤科技》
2021年第3期1-6,F0002,共7页
Datong Coal Science & Technology
关键词
坚硬顶板
预裂
定向聚能爆破
水力切割
二氧化碳致裂
Hard roof
Pre-splitting
Directional cumulative blasting
Hydraulic cutting,Carbon dioxide fracturing
