山东煤炭科技2025，Vol.43Issue(4)：36-40,46,6.DOI:10.3969/j.issn.1005-2801.2025.04.008
单家村煤矿834工作面顶板深孔预裂爆破研究与应用
Research and Application of Deep Hole Pre-splitting Blasting for the 834 Working Face Roof in Shanjiacun Coal Mine
刘帅 1刘晋歌 1李建1
作者信息
- 1. 曲阜市应急管理局,山东 曲阜 273100
- 折叠
摘要
Abstract
In order to solve the difficult problem of coal seam roof rock burst in the 834 working face of Shanjiacun Coal Mine,deep hole pre-splitting blasting technology is adopted for the roof of the working face to release the energy of the roof rock mass,change the bearing structure of the coal rock mass,and reduce the bearing capacity of the coal rock mass.A total of 6 boreholes are arranged in the 834 working face's air inlet crossheading:2 boreholes for first weighting,2 boreholes for initial square,and 2 boreholes for stress abnormal areas.A total of 2 boreholes are arranged in the return air crossheading:1 borehole for first weighting,and 1 borehole for initial square.Pre-splitting blasting is carried out to effectively reduce stress concentration in the coal rock mass,reduce the possibility of rock burst occurrence,and achieve safe mining of the working face.This is conducive to promoting the expansion and improvement of rock burst prevention and control technology in mines with similar conditions.关键词
预裂爆破/冲击地压/弹性能/应力集中/回采Key words
pre-splitting blasting/rock burst/elastic energy/stress concentration/stoping分类
矿业与冶金引用本文复制引用
刘帅,刘晋歌,李建..单家村煤矿834工作面顶板深孔预裂爆破研究与应用[J].山东煤炭科技,2025,43(4):36-40,46,6.
