高应力孤立煤体冲击机理及监测预警系统研究  

Study on Rockburst Mechanism and Monitoring and Early Warning System for High-stress Isolated Coal Masses

作　　者：王剑 王兆义 李广汉 郭宝龙 曹晨 WANG Jian;WANG Zhaoyi;LI Guanghan;GUO Baolong;CAO Chen(Shandong Energy Luxi Mining Liangbaosi Energy Co.,Ltd.,Jining 272404,China;College of Mining,Liaoning Technical University,Fuxin 123000,China)

机构地区：[1]山东能源鲁西矿业梁宝寺能源有限责任公司,山东济宁272404 [2]辽宁工程技术大学矿业学院,辽宁阜新123000

出　　处：《煤炭技术》2025年第2期159-163,共5页Coal Technology

摘　　要：随着煤矿开采向深部发展,高应力孤立煤体面临的冲击地压问题日益凸显,对安全生产构成严重威胁。深入探讨了高应力孤立煤体的冲击机理,揭示了局部蠕变与整体失稳耦合冲击的内在规律。经过理论分析,揭示了塑性滑移、顶底板强剪切效应以及厚底煤屈曲破坏等现象作为冲击地压发生的重要机理,并进一步构建了相应的力学模型以进行深入探讨。研究指出,冲击地压是高应力长期作用下局部蠕变与整体失稳耦合作用的结果。基于此,设计并实施了一套高应力孤立煤体冲击危险监测预警系统,实现对煤体应力的连续、长期、稳定监测,显著提高了冲击地压灾害的早期识别和防控能力。在梁宝寺煤矿的现场应用中,系统成功预警了多次潜在冲击危险,为防冲部门提供了有力支持,显著提高了巷道的稳定性和安全性。研究成果不仅丰富了冲击地压理论,也为深部煤矿安全开采提供了重要的技术支撑,具有广泛的应用前景。With the development of coal mining towards deeper depths,the issue of rockburst in highstress isolated coal masses has become increasingly prominent,posing a serious threat to safety in production.Delves into the mechanism of rockburst in high-stress isolated coal masses,revealing the inherent laws of coupling between local creep and overall instability leading to rockburst.Through theoretical analysis,it is revealed that plastic slip,strong shear effect of roof and floor and buckling failure of thick bottom coal are the important mechanisms of rock burst,and the corresponding mechanical model is further constructed for in-depth discussion.The study indicates that rockburst is a result of the coupling effect between local creep and overall instability under long-term high stress.Based on this,a set of monitoring and early warning system for rockburst risk in high-stress isolated coal masses is designed and implemented,enabling continuous,long-term,and stable monitoring of coal mass stress and significantly enhancing the early identification and prevention capabilities of rockburst disasters.In field applications at Liangbaosi coal mine,the system successfully warned of multiple potential rockburst risks,providing strong support for the rockburst prevention department and significantly improving the stability and safety of tunnels.The research outcomes not only enrich the theory of rockburst but also provide important technical support for safe mining in deep coal mines,offering broad application prospects.

关 键 词：高应力孤立煤体 局部蠕变 整体失稳 冲击地压 监测预警 

分 类 号：TD324[矿业工程—矿井建设]