冲击地压煤层机械扩孔卸压机理研究

张寅; 张季平; 杨建军; 尹立冬; 苏士杰

doi:10.20174/j.JUSE.2025.03.30

地下空间与工程学报 >

2025 , Vol. 21 >Issue 3: 1011 - 1020

DOI: https://doi.org/10.20174/j.JUSE.2025.03.30

设计、施工、监测

冲击地压煤层机械扩孔卸压机理研究

张寅 ,
张季平 ,
杨建军 ,
尹立冬 ,
苏士杰

展开

1.辽宁工程技术大学力学与工程学院,辽宁阜新 123000;
2.山东能源枣矿集团七五煤业有限公司,山东济宁 277606;
3.中天合创能源有限责任公司,内蒙古鄂尔多斯 017212

张寅(1974—),男,陕西安康人,博士,教授,主要从事煤矿冲击地压和采场覆岩运动方面的教学与科研工作。E-mail:Zhangyin240314@163.com

张季平(1997—),男,甘肃定西人,硕士生,主要从事矿山动力灾害防治方面的研究工作。E-mail:zhangjiping2020@163.com

收稿日期: 2024-09-29

网络出版日期: 2025-06-13

基金资助

国家自然科学基金(52174116)

收起

Study on Mechanical Reaming and Rnloading Mechanism of Impact Ground Pressure Coal Seam

Zhang Yin ,
Zhang Jiping ,
Yang Jianjun ,
Yin Lidong ,
Su Shijie

Expand

1. School of Mechanics and Engineering, Liaoning Technical University, Fuxin, Liaoning 123000, P.R. China;
2. Shandong Energy Jujube Mining Group Qiwu Coal Industry Co., Ltd., Jining, Shandong 277606, P.R. China;
3. Zhongtian Hechuang Energy Co., Ltd., Ordos, Inner Mongolia 017212, P.R. China

Received date: 2024-09-29

Online published: 2025-06-13

Fold

摘要

机械扩孔卸压能够精准降低浅部围岩体应力集中程度,对有效解决由密集的大直径钻孔卸压引起的巷道围岩稳定性下降问题有重要意义。基于某矿3106工作面工程实际,采用ABAQUS有限元模拟软件,对比分析大直径钻孔卸压与机械扩孔卸压后围岩垂直应力、位移、塑性区的变化规律,研究机械扩孔卸压机理。结果表明:机械扩孔后,围岩应力峰值下降14.89%,卸压段应力平均下降13%,应力峰值后移1.25 m;巷道顶板处的位移降低28.67%,巷帮顶部、中间和底部的平均位移分别降低98.71%、97.27%、90.63%;塑性应变区占比降低为12.92%,机械扩孔周围相邻钻孔之间的塑性区相连发挥耦合卸压作用。现场应用后,机械扩孔使微震能量最大降低了63.11%,卸压效果良好,消除了试验范围内工作面的冲击危险。

关键词： 冲击地压; 机械扩孔; 钻孔卸压; 数值模拟

本文引用格式

张寅 , 张季平 , 杨建军 , 尹立冬 , 苏士杰 . 冲击地压煤层机械扩孔卸压机理研究[J]. 地下空间与工程学报, 2025 , 21(3) : 1011 -1020 . DOI: 10.20174/j.JUSE.2025.03.30

Abstract

Mechanical reaming and pressure-relief can accurately reduce the stress concentration of shallow surrounding rock mass, which is of great significance to effectively solve the problem of decreasing stability of roadway surrounding rock caused by dense large-diameter drilling and pressure relief. Based on the engineering practice of the 3106 working face of a mine, ABAQUS finite element simulation software was used to compare and analyze the changes of vertical stress, displacement, and plastic zone of surrounding rock after pressure relief by large-diameter drilling and mechanical reaming, and study the mechanism of pressure relief by mechanical reaming. The results show that: After mechanical reaming, the peak stress of the surrounding rock decreases by 14.89%, the stress of the relief section decreases by 13% on average, and the peak stress shifts back by 1.25 m. The displacement at the roof of the roadway decreases by 28.67%, and the average displacement at the top, middle, and bottom of the roadway slope decreases by 98.71%, 97.27%, and 90.63%, respectively. The proportion of plastic strain zone is reduced to 12.92%, and the plastic zone between the adjacent holes around the mechanical reaming is connected to play a coupling pressure relief role. After field application, the mechanical reaming reduces the maximum microseismic energy by 63.11%, the pressure relief effect is good, and the impact risk of the working face in the test range is eliminated.

Key words： rock burst; mechanical-reaming; borehole pressure-relief; numerical simulation

参考文献

[1] 潘一山, 齐庆新, 王爱文, 等.煤矿冲击地压巷道三级支护理论与技术[J]. 煤炭学报, 2020, 45(5): 1585-1594. (Pan Yishan, Qi Qingxin, Wang Aiwen, et al. Theory and technology of three levels support in bump-prone roadway[J]. Journal of China Coal Society, 2020, 45(5): 1585-1594. (in Chinese))
[2] 朱斯陶, 姜福兴, 刘金海, 等.我国煤矿整体失稳型冲击地压类型、发生机理及防治[J]. 煤炭学报, 2020, 45(11): 3667-3677. (Zhu Sitao, Jiang Fuxing, Liu Jinhai, et al. Types, occurrence mechanism and prevention of overall istability induced rockbursts in China coal mines[J]. Journal of China Coal Society, 2020, 45(11): 3667-3677. (in Chinese))
[3] 赵善坤, 齐庆新, 李云鹏, 等.煤矿深部开采冲击地压应力控制技术理论与实践[J]. 煤炭学报, 2020, 45(增2): 626-636. (Zhao Shankun, Qi Qingxin, Li Yunpeng, et al. Theory and practice of rockburst stress control technology in deep coal mine[J]. Journal of China Coal Society, 2020, 45(Supp. 2): 626-636. (in Chinese))
[4] 姜福兴, 张翔, 朱斯陶. 煤矿冲击地压防治体系中的关键问题探讨[J]. 煤炭科学技术, 2023, 51(1): 203-213. (Jiang Fuxing, Zhang Xiang, Zhu Sitao. Discussion on key problems in prevention and control system of coal mine rock burst[J]. Coal Science and Technology, 2023, 51(1): 203-213. (in Chinese))
[5] 王爱文, 潘一山, 齐庆新, 等.煤矿冲击地压巷道三级吸能支护的强度计算方法[J]. 煤炭学报, 2020, 45(9): 3087-3095. (Wang Aiwen, Pan Yishan, Qi Qingxin, et al. Strength calculation method of three-level energy absorption support in rockburst roadways for coal mines[J]. Journal of China Coal Society, 2020, 45(9): 3087-3095. (in Chinese))
[6] 肖治民, 刘军, 王贺, 等.动载诱发巷道底板冲击失稳机制及防控技术[J]. 地下空间与工程学报, 2019, 15(5): 1573-1581. (Xiao Zhimin, Liu Jun, Wang He, et al. Study on Mechanism and Control of Rock Burst Instability of Roadway Floor Induced by Dynamic Load Disturbance[J]. Chinese Journal of Underground Space and Engineering, 2019, 15(5): 1573-1581. (in Chinese))
[7] 张翔, 朱斯陶, 姜福兴, 等.深厚表土综放采场应力加载型冲击地压机理[J]. 煤炭学报, 2023, 48(5): 2092-2105. (Zhang Xiang, Zhu Sitao, Jiang Fuxing, et al. Mechanism of stress-loaded rockburst in fully mechanized top-coal caving stope with deep overburden[J]. Journal of China Coal Society, 2023, 48(5): 2092-2105. (in Chinese))
[8] 朱斯陶, 董续凯, 姜福兴, 等.硫磺沟煤矿巨厚强冲击煤层掘进工作面超前钻孔卸压失效机理研究[J]. 采矿与安全工程学报, 2022, 39(1): 45-53. (Zhu Sitao, Dong Xinkai, Jiang Fuxing, et al. Failure mechanism of pressure relief with advance drilling in driving face of strong burst ultra thick coal seam in Liuhuanggou coal mine[J]. Journal of Mining & Safety Engineering, 2022, 39(1): 45-53. (in Chinese))
[9] 单鹏飞, 张帅, 来兴平, 等.不同卸压措施下“双能量”指标协同预警及调控机制分析[J]. 岩石力学与工程学报, 2021, 40(增2): 3261-3273. (Shan Pengfei, Zhang Shuai, Lai Xingping, et al. Analysis of cooperative early warning and regulation mechanism of “ dual energy ” indicators under different pressure relief measures[J]. Chinese Journal of Rock Mechanics and Engineering, 2021, 40(Supp. 2): 3261-3273. (in Chinese))
[10] 鲁俊, 尹光志, 高恒, 等.真三轴加载条件下含瓦斯煤体复合动力灾害及钻孔卸压试验研究[J]. 煤炭学报,2020,45(5): 1812-1823. (Lu Jun, Yin Guangzhi, Gao Heng, et al. Experimental study on compound dynamic disaster and drilling pressure relief of gas-bearing coal under true triaxial loading[J]. Journal of China Coal Society, 2020, 45(5): 1812-1823. (in Chinese))
[11] 刘红岗, 贺永年, 徐金海, 等.深井煤巷钻孔卸压技术的数值模拟与工业试验[J]. 煤炭学报, 2007, 148(1): 33-37. (Liu Honggang, He Yongnian, Xu Jinhai, et al. Numerical simulation and industrial test of boreholes destressing technology in deep coal tunnel[J]. Journal of China Coal Society, 2007, 148(1): 33-37. (in Chinese))
[12] 马斌文, 邓志刚, 赵善坤, 等.钻孔卸压防治冲击地压机理及影响因素分析[J]. 煤炭科学技术, 2020, 48(5): 35-40. (Ma Binwen, Deng Zhigang, Zhao Shankun, et al. Analysis on mechanism and influencing factors of drilling pressure relief to prevent rock burst[J]. Coal Science and Technology, 2020, 48(5): 35-40. (in Chinese))
[13] 贾传洋, 蒋宇静, 张学朋, 等.大直径钻孔卸压机理室内及数值试验研究[J]. 岩土工程学报, 2017, 39(6): 1115-1122. (Jia Chuanyang, Jiang Yujing, Zhang Xuepeng, et al. Laboratory and numerical experiments on pressure relief mechanism of large-diameter boreholes[J]. Chinese Journal of Geotechnical Engineering, 2017, 39(6): 1115-1122. (in Chinese))
[14] 刘少虹. 动载冲击地压机理分析与防治实践[D]. 北京:煤炭科学研究总院, 2014. (Liu Shaohong. The study on the mechanism and prevention of dynamic-loading rockburst[D]. Beijing: General Academy of Coal Science, 2014. (in Chinese))
[15] 徐芝纶. 弹性力学.上册[M]. 北京:人民教育出版社,1979. (Xu Zhilun. Elasticity. First volume[M]. Beijing: People's Education Press, 1979. (in Chinese))
[16] 李金奎, 熊振华, 刘东生, 等.钻孔卸压防治巷道冲击地压的数值模拟[J]. 西安科技大学学报, 2009, 29(4): 424-426, 432. (Li Jinkui, Xiong Zhenhua, Liu Dongsheng, et al. Numerical simulation of borehole pressure relief preventing roadway rockburst of a mine[J]. Journal of Xi'an University of Science and Technology, 2009, 29(4): 424-426, 432. (in Chinese))
[17] 胡阳, 曹安业, 秦续峰, 等.深部冲击地压煤层水射流割缝卸压参数优化研究[J]. 岩土工程学报, 2023, 45(7): 1509-1516. (Hu Yang, Cao Anye, Qin Xuefeng, et al. On optimization of pressure-relief parameters of water jet slots in deep rockburst coal seams[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(7): 1509-1516. (in Chinese))
[18] 张东晓, 王翔宇, 郭伟耀, 等.煤层厚度影响下大直径钻孔卸压释能机理[J]. 煤炭科学技术, 2024, 52(6): 40-50. (Zhang Dongxiao, Wang Xiangyu, Guo Weiyao, et al. The influence of coal seam thickness on the pressure relief and energy release mechanism of large-diameter drilling hole[J]. Coal Science and Technology, 2024, 52(6): 40-50. (in Chinese))

Options

文章导航

模态框（Modal）标题

摘要

本文引用格式

Abstract

参考文献