山东煤炭科技2025，Vol.43Issue(5)：24-27,4.DOI:10.3969/j.issn.1005-2801.2025.05.005
深部厚硬顶板预裂爆破切顶卸压技术及应用研究
Pre-splitting Blasting Roof Cutting and Pressure Relief Technology of Deep Thick and Hard Roof and Application Research
摘要
Abstract
In response to the problem of large-scale roof hanging and induced surrounding rock impact disasters in deep thick and hard roof fully mechanized mining faces,the thick and hard roof of the 11618 working face machine roadway of Xieqiao Coal Mine is taken as the research object.The theoretical analysis of the collapse conditions of the overlying rock after roof cutting is carried out,and advanced pre-splitting blasting roof cutting is adopted.The effect of roof cutting roadway protection is analyzed through optimization of blasting roof cutting parameters and on-site mine pressure monitoring.The research shows that after blasting and roof cutting,the deformation of both sides of the roadway and the subsidence amount of the roof are effectively controlled,and the advanced bracket of the roadway is eliminated,greatly reducing the labor intensity of workers and achieving safe and efficient mining of deep thick and hard roof fully mechanized mining faces.关键词
厚硬顶板/爆破/卸压Key words
thick and hard roof/blasting/pressure relief分类
矿山工程引用本文复制引用
张九洲,金瑞举,杨德传..深部厚硬顶板预裂爆破切顶卸压技术及应用研究[J].山东煤炭科技,2025,43(5):24-27,4.基金项目
《淮南矿区采煤工作面两巷超前支承应力转移与巷道超前协同技术研究》[HKMY-KY-CK(2023)]号 （2023）
