深部高应力煤巷围岩修复加固技术案例分析  

Case Analysis of Restoration and Reinforcement Technology of Surrounding Rock in Deep High-stress Coal Roadway

作　　者：刘永强 韩昌良 霍永金 郭豫新 郭飞 魏民 李文杰 LIU Yongqiang;HAN Changliang;HUO Yongjin;GUO Yuxin;GUO Fei;WEI Min;LI Wenjie(Zhongtian Hechuang Energy Co.,Ltd.,Ordos 017010,China;Key Laboratory of Deep Coal Resources Exploitation,Ministry of Education,School of Mining Engineering,China University of Mining and Technology,Xuzhou 221116,China;Shandong Yanmei Panther Mining Equipment Co.,Ltd.,Jining 273500,China)

机构地区：[1]中天合创能源有限责任公司,内蒙古鄂尔多斯017010 [2]中国矿业大学矿业工程学院深部煤炭资源开采教育部重点实验室,江苏徐州221116 [3]山东兖煤黑豹矿业装备有限公司,山东济宁273500

出　　处：《煤炭技术》2024年第6期12-17,共6页Coal Technology

基　　金：国家自然科学基金面上资助项目(52274101);中国博士后科学基金资助项目(2019M652019)。

摘　　要：为解决在强扰动巷道下传统锚杆索组合支护围岩协同控制能力不足的难题,以葫芦素矿21205辅运巷为工程背景,通过现场调研、理论分析、数值模拟进行分析得出顶板有效锚固层薄弱,现有支护易产生顶板渐进式破坏且未能充分发挥围岩承载性是制约支护效能主要原因。为此提出时效全长预应力锚固技术与新型巷道围岩多圈层高效支护技术,并通过数值模拟验证了新支护方案的可行性。工程实践表明采用围岩控制加固技术后,显著增强了支护效能,有效控制了深埋煤巷围岩大变形。In order to solve the problem of insufficient collaborative control ability of traditional bolt cable combination supporting surrounding rock under strong disturbance roadway,cucurbitacin 21205 auxiliary transportation lane is taken as the engineering background,and the weak effective anchorage layer of the roof plate is analyzed through on-site investigation,theoretical analysis and numerical simulation,and the existing support is prone to progressive roof failure and fails to give full play to the bearing capacity of the surrounding rock,which is the main reason restricting the support efficiency.Therefore,the time-sensitive full-length prestressed anchorage technology and the new high-efficiency support technology of the surrounding rock multi-circle layer of the roadway are proposed,and the feasibility of the new support scheme is verified by numerical simulation.Engineering practice shows that after the use of surrounding rock control and reinforcement technology,the supporting efficiency is significantly enhanced,and the large deformation of the surrounding rock in the deeply buried coal roadway is effectively controlled.

关 键 词：强扰动巷道 多圈层支护 修复加固技术 预应力锚固 

分 类 号：TD353[矿业工程—矿井建设]