深部大断面巷道围岩应力分布及控制研究  

Stress distribution and control of surrounding rock of large-sectionroadway in deep coal mine

作　　者：秦庆举[1] 殷帅峰[2] 王恩 赵许博 康庆涛[2] 郑鑫健 QIN Qingju;YIN Shuaifeng;WANG En;ZHAO Xubo;KANG Qingtao;ZHENG Xinjian(Qianyingzi Coal Mine,Anhui Hengyuan Coal and Electricity Co.,Ltd.,Suzhou 234000,China;School of Mining Safety,North China Institute of Science and Technology,Yanjiao 065201,China)

机构地区：[1]安徽恒源煤电股份有限公司钱营孜煤矿,安徽宿州234000 [2]华北科技学院矿山安全学院,北京东燕郊065201

出　　处：《华北科技学院学报》2025年第2期42-48,共7页Journal of North China Institute of Science and Technology

基　　金：国家自然科学基金资助项目(52474097,52274081);河北省自然科学基金资助项目(E2024508008)。

摘　　要：针对深部煤矿大断面巷道围岩控制难题,以钱营孜煤矿深部大断面马头门巷道为工程背景,采用现场实测、数值模拟、理论分析、工程实践等方法研究了巷道围岩变形破坏机制及其控制技术。分析得出了诱发巷道围岩失稳破坏的关键影响因素,通过地应力现场测试获得了水平应力为最大主应力且与巷道轴向方向的夹角呈78°;通过数值模拟研究得出了马头门围岩应力场、位移场的分布及演化特征,确定了支承压力峰值距巷帮的平均距离为7.875 m,揭示了大断面巷道畸变失稳机制。提出了大断面巷道采取“注-锚-筑”协同控制技术的耦合治理方案,通过现场工程实践验证了“注-锚-筑”协同控制技术的合理性,研究成果为同类型大变形巷道围岩控制提供技术参考。In response to the difficulty of controlling surrounding rock of large-section roadways in deep coal mines,the deformation and failure mechanism of roadway and its control technology are studied by means of on-site measurement,numerical simulation,theoretical analysis,engineering practice,with the deep coal mine of tailgate in Qianyingzi coal mine as the engineering background.The key influencing factors that induce instability and failure of roadway surrounding rock are analyzed,and the maximum horizontal stress is obtained through crustal stress testing,with an angle of 78°with the axial direction of roadway.The distribution and evolution characteristics of stress and displacement fields in tailgate are obtained through numerical simulation.The average distance between the peak support pressure and the roadway is determined to be 7.875 m,revealing the mechanism of distortion and instability in large section roadway.A collaborative control technology of"grouting-anchoring-pouring"is proposed for large-section roadway,and the rationality of"grouting-anchoring-pouring"technology is verified through on-site engineering practice.The results provide technical reference for the control of surrounding rock in similar large deformation roadways.

关 键 词：巷道支护 深部煤矿 大断面马头门 破坏机制 支承压力 

分 类 号：TD353[矿业工程—矿井建设]