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[1]康志鹏,段昌瑞,罗勇,等.深井多场应力扰动超临界锚固围岩控制技术研究*[J].中国安全生产科学技术,2025,21(8):77-86.[doi:10.11731/j.issn.1673-193x.2025.08.010]
　KANG Zhipeng,DUAN Changrui,LUO Yong,et al.Research on surrounding rock control technology via supercritical anchoring under multi-field stress disturbance in deep mines[J].Journal of Safety Science and Technology,2025,21(8):77-86.[doi:10.11731/j.issn.1673-193x.2025.08.010]
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深井多场应力扰动超临界锚固围岩控制技术研究*

《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
21
期数:
2025年8期
页码:
77-86
栏目:
职业安全卫生管理与技术
出版日期:
2025-08-30

文章信息/Info

Title:
Research on surrounding rock control technology via supercritical anchoring under multi-field stress disturbance in deep mines
文章编号:
1673-193X(2025)-08-0077-10
作者:
康志鹏; 段昌瑞; 罗勇; 高翔; 蔡志良
（1.淮南矿业（集团）有限责任公司 深部煤炭安全开采与环境保护全国重点实验室，安徽 淮南 232000；
2.淮河能源控股集团有限责任公司 深部煤炭开采耦合灾害防控国家矿山安全监察局重点实验室，安徽 淮南 232000）
Author(s):
KANG Zhipeng;  DUAN Changrui;  LUO Yong;  GAO Xiang;  CAI Zhiliang
(1.State Key Laboratory for Safe Mining of Deep Coal Resources and Environment Protection,Huainan Mining (Group) Co.,Ltd.,Huainan Anhui 232000,China;
2.Key Laboratory of Coupled Hazards Prevention and Control in Deep Coal Mining,National Mine Safety Administration,Huaihe Energy Holdings Group Co.,Ltd,Huainan Anhui 232000,China)
关键词:
多场应力; 超临界锚固; 厚层加固拱; 柔性锚杆; 性能测试
Keywords:
multi-field stress;  supercritical anchoring;  thick-layer reinforced arch;  flexible bolts;  performance testing
分类号:
TD353；X936
DOI:
10.11731/j.issn.1673-193x.2025.08.010
文献标志码:
A
摘要:
为解决深部多场应力扰动下的巷道前掘后修、多次翻修、冒顶片帮的问题。采用理论分析、数值模拟、试验检验和工程实践的方法，分析锚固厚度与围岩裂隙发育的时空演化关系，提出深井巷道厚锚固层加固及超临界锚固支护围岩控制机制并进行验证。研究结果表明：不同长度锚杆支护下围岩裂隙数随应力释放过程不断变化，应力释放阶段，围岩裂隙数基本一致，应力释放结束后，无支护条件下围岩裂隙数量激增，围岩裂隙数量随锚杆长度呈现双相波动性增长趋势，具体表现为初始阶段单调递增，随后进入短暂递减区间，最终恢复二次增长态势；基础支护体长度应穿透巷道围岩横向裂隙区并生根于巷道岩体内零位移点，从而构筑厚层加固拱，实现围岩长时强度退化抑制与动载应力阻抗性能提升；柔性锚杆的静态拉伸性能、耐久性能、循环加载性试验结果显示，影响其力学性能因子由高到低分别为潮湿环境、安装夹角、长时加载。确定最优的锁紧套管尺寸为长120 mm，直径30 mm，现场试验结果显示巷道控制效果良好。研究结果可为深部多场应力扰动巷道围岩控制提供一定的科学参考。
Abstract:
In order to address issues such as pre-excavation and post-repair,repeated repair,roof fall,and rib spalling in roadways under deep multi-field stress disturbances,this study employed theoretical analysis,numerical simulation,experimental testing,and engineering practice.This study investigated the spatiotemporal evolution between anchorage thickness and surrounding rock fracture development,establishing and validating a control mechanism for thick-anchored strata reinforcement and supercritical anchoring support in deep roadways.The results demonstrate that under different bolt lengths,the fracture count in surrounding rock continuously changes during the stress release process.During the stress release stage,the fracture count in surrounding rock is basically the same.After stress release ends,the fracture count in surrounding rock increases explosively under unsupported conditions.The fracture quantity in surrounding rock shows a biphasic fluctuating growth trend with bolt length,specifically manifested as a monotonic increase in the initial stage,then entering a brief decreasing interval,and finally restoring a secondary growth trend.The base support body length should penetrate the transverse fracture zone of roadway surrounding rock and be rooted at the zero-displacement point within the roadway rock mass,thereby constructing a thick-layer reinforced arch,achieving long-term strength degradation inhibition of surrounding rock and dynamic load stress impedance performance enhancement.Static tensile performance,durability performance,and cyclic loading performance test results of flexible bolts reveal that the factors affecting their mechanical performance,ranked from high to low,are humid environment,installation included angle,and long-term loading.Optimal locking sleeve dimensions of 120 mm length and 30 mm diameter were identified,with field tests confirming satisfactory roadway control efficacy.These findings provide scientific references for controlling surrounding rock in roadways under deep multi-field stress disturbances.

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备注/Memo

备注/Memo:
收稿日期： 2025-03-21
* 基金项目： 深地国家科技重大专项项目（2024ZD1004100）；安徽省自然科学基金项目（2108085ME155）；安徽省重点研究和开发计划项目(201904a07020011，1804a0802214）
作者简介： 康志鹏，硕士，工程师，主要研究方向为地下空间围岩控制、绿色智能开采。
更新日期/Last Update: 2025-09-01