高应力软岩大巷“锚网索喷注”封闭
再造承载层控制技术

金属矿山 ›› 2025, Vol. 54 ›› Issue (7): 16-24.

高应力软岩大巷“锚网索喷注”封闭再造承载层控制技术

聂济刚1 　辛亚军2,3 　王　飞1 　田孟含2 　姬红英3,4

1. 永煤集团股份有限公司顺和煤矿,河南永城 476600;2. 河南理工大学能源科学与工程学院,河南焦作 454000; 3. 煤炭安全生产与清洁高效利用省部共建协同创新中心,河南焦作 454000;4. 河南理工大学资源环境学院,河南焦作 454000

出版日期:2025-07-15 发布日期:2025-08-12
通讯作者: 辛亚军(1974—),男,副教授,博士,硕士研究生导师。
作者简介:聂济刚(1982—),男,高级工程师。
基金资助:
国家自然科学基金项目(编号:51374091);河南省重点研发与推广专项(科技攻关)项目(编号:232102321132,232102320253)

Control Technology of Weak Rock Roadway Subjected to High Stress by Regenerated Bearing Layer Formed from "Anchor-Net-Cable Injection" Closing

NIE Jigang 1 　 XIN Yajun 2,3 　 WANG Fei 1 　 TIAN Menghan 2 　 JI Hongying 3,4

1. Shunhe Coal Mine,Yongcheng Coal Group Co. ,Ltd. ,Yongcheng 476600,China; 2. School of Energy Science and Engineering,Henan Polytechnic University,Jiaozuo 454000,China; 3. Collaborative Innovation Center of Coal Work Safety and Clean High Efficiency Utilization,Jiaozuo 454000,China; 4. School of Resources and Environment,Henan Polytechnic University,Jiaozuo 454000,China

Online:2025-07-15 Published:2025-08-12

摘要/Abstract

摘要： 高应力软岩大巷围岩变形严重、支护困难,通过对顺和煤矿高应力软岩大巷围岩变形破坏特征与失稳原因进行分析,探讨了高应力软岩大巷围岩变形力学机制,提出了巷道围岩横“D”形封闭再造承载层技术,在此基础上对设计方案进行了数值计算与工业性试验。结果表明:① 该矿高应力软岩大巷围岩变形破坏特征表现为顶板整体弯曲式下沉、两帮挤压凸出严重及底鼓量大特征,呈现出初期变形量大、自稳时间短、围岩强流变特点;高应力环境、低强度围岩、裂隙水浸入、支护不合理是围岩失稳的主要原因。 ② 该矿-702 m 水平西翼轨道大巷(Ⅱ段)为高应力—节理化—膨胀性复合型(HJS)软岩巷道,围岩控制力学转化机制为ⅠACⅡBCⅢBCD→ⅠACⅡBCⅢD→ⅠCⅡBC→ⅡB(吸水、微裂隙ⅠAC—重力、水力ⅡBC—夹层、层理、节理ⅢBCD→吸水、微裂隙ⅠAC—重力、水力ⅡBC—节理ⅢD→微裂隙ⅠC— 重力、水力ⅡBC→重力ⅡB )。 ③ 底板注浆—注浆锚索强化成基脚、顶板—两帮深浅孔梯度注浆承载成拱形横“D”形再造承载层结构,可有效促进高应力软岩巷道围岩稳定。 ④ 提出了高应力软岩巷道“锚网索喷注”封闭再造承载层控制技术,应用后巷道断面收缩率小于 1%,围岩控制效果显著。

关键词: 深井巷道　软弱围岩　变形机制　再造承载层　稳定性

Abstract: It is difficult to support surrounding rock of high-stress weak rock roadway which seriously deformed. By analyzing the deformation failure characteristics and the instability causes of weak surrounding rock of high-stress roadway in Shunhe Coal Mine,the paper discussed the deformation mechanics mechanism of weak surrounding rock of high-stress roadway,put forward the technology of horizontal “D” type closed regenerated bearing layer of surrounding rock,and carried out the numerical calculation and industrial test of the design scheme. The results showed that:① the deformation failure characteristics of weak surrounding rock in high stress roadway in Shunhe Coal Mine were as follows:bending subsidence of whole roof,two-wall serious extrusion,large floor heave,and the initial deformation was large,the self-stabilizing time short,and the surrounding rock rheological serious. The main reason of surrounding rock instability were high stress environment, low strength surrounding rock,water immersion crack and unreasonable support. ② -702 m horizontal west-wing track roadway (section Ⅱ) in Shunhe Coal Mine is a high-stress,jointly-expansive (HJS) weak rock roadway,and the mechanics transformation mechanism of surrounding rock control was ⅠACⅡBCⅢBCD→ⅠACⅡBCⅢD→ⅠCⅡBC→ⅡB(water absorption,micro-crack ⅠAC -gravity,hydraulic ⅡBC -intercalation,stratification,joint ⅢBCD → water absorption,micro-crack ⅠAC -gravity,hydraulic ⅡBC -joint ⅢD → micro-crack ⅠC -gravity,hydraulic ⅡBC→ gravity ⅡB ). ③ The regenerated loading layer structure of arch horizontal “D” type deformed with foundation by floor grouting and grouting anchor cable,and with gradient grouting in deep and shallow holes in roof and two sides can promote effectively the stability of surrounding rock of high stress weak rock roadway. ④ The control technology of the closed bearing layer of high stress weak rock roadway with “anchor net injection” was put forward. The application results indicated that the roadway section shrinkage less than 1%,and the surrounding rock control effect is remarkable.

Key words: deep roadway,weak surrounding rock,deformation mechanism,regenerated bearing layer,stability

中图分类号:

TD353

聂济刚　辛亚军, 　王　飞　田孟含　姬红英, . 高应力软岩大巷“锚网索喷注”封闭再造承载层控制技术 [J]. 金属矿山, 2025, 54(7): 16-24.

NIE Jigang 　 XIN Yajun , 　 WANG Fei 　 TIAN Menghan 　 JI Hongying , . Control Technology of Weak Rock Roadway Subjected to High Stress by Regenerated Bearing Layer Formed from "Anchor-Net-Cable Injection" Closing[J]. Metal Mine, 2025, 54(7): 16-24.

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