缺陷群防治冲击地压技术研究

Research on rock burst prevention and control with defects group

根据对深部孤岛煤柱冲击地压的防治技术研究,建立了用缺陷群防控高能量冲击地压的理论框架,分别通过数值模拟和力学分析揭示了工程和断裂缺陷防治冲击地压的机理。在此基础上把缺陷群防冲措施应用在开滦唐山矿T1391工作面中,掌握了煤层冲击能量释放规律,避免发生冲击地压事故,保证了工作面安全回采。

Based on the prevention techniques research of deep island coal pillar rock burst; a theoretical framework for the prevention and control of high energy rock burst with a defects group was established. The mechanism of engineering defect and fracturing defect for rock burst prevention and control was revealed by the numerical simulation and mechanical analysis. On this basis,the rock burst prevention and control measure with defects group was used in T1391 working face in Tangshan Mine in Kailuan,which validly changed the impact energy release law of coal seam,avoided the occurrence of rock burst,and ensured the safety of working face mining.