煤炭与化工2026，Vol.49Issue(7)：34-40,44,8.DOI:10.19286/j.cnki.cci.2026.07.006
断层地堑区域孤岛工作面致冲机理及防冲技术研究
Study on the mechanism of rockburst induced by isolated working faces in fault graben zones and prevention technologies
摘要
Abstract
Based on the issue of leaving fault pillars in the 113 upper 05 isolated working face at Gaozhuang Coal Mine,which is affected by a large-offset fault graben zone,this study analyzes the mechanism of rockburst occurrence from perspectives of energy module,stress module,and geological structural zones.A numerical model was established according to actual geological conditions to investigate the evolution patterns of stress and energy during mining.The peak stress values near the fault in the inner and outer sections of the working face were 57.4 MPa and 54.3 MPa,respectively,while the peak elastic strain energy density within the fault pillar reached 35.2 kJ/m3.Corresponding pressure-relief and rockburst prevention measures were implemented based on engineering practice.Monitoring results show that both microseismic energy and frequency significantly decreased after pressure relief,with post-relief stress and energy levels remaining below warning thresholds,effectively reducing rockburst risk during mining.关键词
冲击地压/地堑/断层/孤岛工作面/数值模拟/防冲技术Key words
rockburst/graben/fault/isolated working face/numerical simulation/rockburst prevention technology分类
矿业与冶金引用本文复制引用
杨运琦,薛建军,张磊,丁伟,梁民,孙铄寒,张宗宇..断层地堑区域孤岛工作面致冲机理及防冲技术研究[J].煤炭与化工,2026,49(7):34-40,44,8.基金项目
国家自然科学基金(51674159) （51674159）
国家自然科学基金青年科学基金(51804186) （51804186）
