煤炭与化工2024，Vol.47Issue(4)：32-35,39,5.DOI:10.19286/j.cnki.cci.2024.04.008
厚硬基本顶短壁工作面预裂切顶技术应用研究
Study on the application of pre-splitting roof cutting technology in short wall working face with thick and hard basic roof
张永刚1
作者信息
- 1. 霍州煤电集团有限责任公司 辛置煤矿,山西 临汾 031412
- 折叠
摘要
Abstract
In order to solve the problem of safe and efficient mining of short wall fully mechanized mining face under the condition of thick and hard basic roof in Xinzhi Mine,the variation of roof displacement and the evolution characteristics of stope abutment pressure under the influence of primary mining were simulated and studied by FlAC3D numerical simulation software,and the mine pressure behavior law of working face under different advancing distance was compared and analyzed.The technical scheme of pre-splitting and roof cutting by two-way concentrated blasting was put forward,which was suitable for the short-wall face.Combined with the actual situation in the field and the monitoring results,it was considered that the application of the pre-splitting roof cutting technology of two-way concentrated blasting realized the weakening treatment of the hard roof,alleviated the pressure performance of the working face,and could meet the safe and efficient production of the mine.关键词
基本顶/坚硬顶板/预裂爆破/数值模拟Key words
basic roof/hard roof/presplitting blasting/numerical simulation分类
矿业与冶金引用本文复制引用
张永刚..厚硬基本顶短壁工作面预裂切顶技术应用研究[J].煤炭与化工,2024,47(4):32-35,39,5.
