煤炭科技2025，Vol.46Issue(6)：207-212,6.DOI:10.19896/j.cnki.mtkj.2025.06.037
贯穿断层三角煤柱冲击危险区域判识及防治技术研究
Research on identification and prevention technology of impact hazardous areas of triangular coal pillars under penetrating faults
摘要
Abstract
Fault-type rock bursts occur frequently in China,among which rock bursts in triangular coal pillars under penetrating faults pose a greater danger,severely restricting the safe and efficient production of coal mines.Taking the No.506 working face of a certain mine as the research background,the evolution law of stress and energy in triangular coal pillars during the passage of working face through a penetrating fault was studied through numerical simulation,revealing the impact mechanism of triangular coal pillars under penetrating fault.Based on the stress distribution characteristics of triangular coal pillars,impact stress indicators were established,and the impact hazard zones and levels of triangular coal pillars were divided.Combining the energy accumulation characteristics of triangu-lar coal pillars,classified prevention and control measures combining large-diameter drilling,coal body blasting,and roof blasting were proposed.The energy accumulation pattern of triangular coal pillars indicates that when the width of the coal pillar ranges from 50-150 meters and 0-50 meters,additional roof and coal seam blasting pressure relief measures need to be taken.The effectiveness of these pressure relief measures has been verified on-site.关键词
冲击地压/贯穿断层/三角煤柱/数值模拟/应力演化Key words
rock burst/penetrating fault/triangular coal pillar/numerical simulation/stress evolution分类
矿业与冶金引用本文复制引用
吕振,温颖远,郭文豪,曹安业,张晓雷,崔志瀛,郭继森..贯穿断层三角煤柱冲击危险区域判识及防治技术研究[J].煤炭科技,2025,46(6):207-212,6.基金项目
国家自然科学基金资助项目(52274098) （52274098）
国家级大学生创新训练(202410755014) （202410755014）
新疆维吾尔自治区重点研发任务专项(2022B01034) （2022B01034）
