回采扰动巷道双深度分区锚注支护技术研究

金属矿山 ›› 2025, Vol. 55 ›› Issue (8): 9-18.

回采扰动巷道双深度分区锚注支护技术研究

王金星¹ 　韩　闯¹ 　杨小林¹ 　陈新明¹ 　焦华喆¹ 　张　超² 　陈峰宾¹ 　涂　坤²

1. 河南理工大学土木工程学院,河南焦作 454000;2. 中国平煤神马集团十一矿,河南平顶山 467000

出版日期:2025-09-15 发布日期:2025-09-12
通讯作者: 焦华喆(1985—),男,副教授,博士,博士研究生导师。
基金资助:
“十四五”国家重点研发计划项目(编号:2023YFC2907203);平煤重点科技项目(编号:4104022022220101T)。

Research on Double Depth Partition Bolting and Grouting Support Technology in Mining Disturbance Roadway

WANG Jinxing ¹　 HAN Chuang ¹ 　 YANG Xiaolin ¹ 　 CHEN Xinming ¹ 　 JIAO Huazhe¹ 　 ZHANG Chao ² CHEN Fengbing ¹ 　 TU Kun ²

1. School of Civil Engineering,Henan Polytechnic University,Jiaozuo 454000,China; 2. No. 11 Coal Mine of China Pingmei Shenma Group,Pingdingshan 467000,China

Online:2025-09-15 Published:2025-09-12
Contact: 王金星(1973—),男,副教授,博士,硕士研究生导师。

摘要/Abstract

摘要： 回采巷道原主动式超前支护方案的支护效果较差,不能满足巷道的稳定性要求。基于锚注支护技术与围岩的破坏范围,提出双深度分区锚注支护技术作为回采巷道的优化支护方案。根据巷道现场调研的钻孔窥视探测结果与理论计算确定了围岩的破坏范围,对围岩的注浆深度进行了区域划分。理论分析了围岩注浆后的加固性能, 通过巷道围岩注浆前后的煤体力学试验结果,定量分析了围岩的注浆加固效果。利用数值模拟与工程应用结合研究了巷道采用双深度分区锚注支护技术的支护效果。结果表明:巷道顶板围岩破坏范围为 2. 7 m 左右,两帮破坏范围为 5. 4 m 左右,顶板和两帮注浆划分为“深”“浅”2 种深度注浆加固区域。巷道注浆加固后在注浆锚杆(索)与凝固后的浆液协同支护作用下,增加了围岩的强度与黏聚力,提高了围岩抵抗变形的能力。巷道采用双深度分区锚注支护方案后,巷道变形、围岩塑性区深度与破坏范围明显减小,改善了巷道的稳定性。工程应用监测数据结果与数值模拟结果差异较小,验证了数值模拟的合理性。

关键词: 主动式超前支护　注浆加固　数值模拟　注浆锚杆(索) ,

Abstract: The support effect of the original active advance support scheme of the mining roadway is poor,which can′t meet the stability requirements of the roadway. Based on the bolt-grouting support technology and the failure range of surrounding rock,a double-depth partition bolt-grouting support technology is proposed as an optimized support scheme for mining roadway. According to the results of borehole peep detection and theoretical calculation of roadway field investigation,the damage range of surrounding rock is determined,and the grouting depth of surrounding rock is divided into regions. The reinforcement performance of surrounding rock after grouting is analyzed theoretically. The grouting reinforcement effect of surrounding rock is quantitatively analyzed by the results of coal mechanics test before and after grouting. The support effect of double-depth partition bolt-grouting support technology in roadway is studied by combining numerical simulation with engineering application. The results show that the damage range of the surrounding rock of the roadway roof is about 2. 7 m,and the damage range of the two sides is about 5. 4 m. The roof and the two sides are divided into " deep" and " shallow" grouting reinforcement areas. After grouting reinforcement,under the synergistic support of grouting bolt (cable) and solidified slurry,the strength and cohesion of surrounding rock are increased,and the ability of surrounding rock to resist deformation is improved. After adopting the doubledepth partition bolt-grouting support scheme,the deformation of the roadway,the depth and failure range of the plastic zone of the surrounding rock are significantly reduced,and the stability of the roadway is improved. The error between the engineering application monitoring data results and the numerical simulation results is small,which verifies the rationality of the numerical simulation.

Key words: active advance support,grouting reinforcement,numerical simulation,grouting bolt (cable)

中图分类号:

TD353

王金星　韩　闯　杨小林　陈新明　焦华喆　张　超　陈峰宾　涂　坤. 回采扰动巷道双深度分区锚注支护技术研究[J]. 金属矿山, 2025, 55(8): 9-18.

WANG Jinxing 　 HAN Chuang 　 YANG Xiaolin 　 CHEN Xinming 　 JIAO Huazhe 　 ZHANG Chao 　 CHEN Fengbing 　 TU Kun . Research on Double Depth Partition Bolting and Grouting Support Technology in Mining Disturbance Roadway [J]. Metal Mine, 2025, 55(8): 9-18.

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