|本期目录/Table of Contents|

[1]王爱文,李超然,辛壮壮,等.钻孔煤样力学特性及损伤演化特征的围压效应*[J].中国安全生产科学技术,2026,22(4):53-63.[doi:10.11731/j.issn.1673-193x.2026.04.007]
　WANG Aiwen,LI Chaoran,XIN Zhuangzhuang,et al.Mechanical properties and damage evolution characteristics of drilled coal samples under confining pressure[J].Journal of Safety Science and Technology,2026,22(4):53-63.[doi:10.11731/j.issn.1673-193x.2026.04.007]
点击复制

钻孔煤样力学特性及损伤演化特征的围压效应*

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

卷:
22
期数:
2026年4期
页码:
53-63
栏目:
安全工程技术
出版日期:
2026-04-30

文章信息/Info

Title:
Mechanical properties and damage evolution characteristics of drilled coal samples under confining pressure
文章编号:
1673-193X(2026)-04-0053-11
作者:
王爱文; 李超然; 辛壮壮; 张巍; 张本江; 刘兴发; 刘瀚琦
(1.辽宁工程技术大学 力学与工程学院，辽宁 阜新 123000；
2.辽宁大学 灾害岩体力学研究所，辽宁 沈阳 110036；
3.煤矿冲击地压机理与防控技术国家矿山安全监察局重点实验室，辽宁 沈阳 110036；
4.沈阳焦煤股份有限公司，辽宁 沈阳 110122；
5.抚顺矿业集团有限责任公司，辽宁 抚顺 113008)
Author(s):
WANG Aiwen;  LI Chaoran;  XIN Zhuangzhuang;  ZHANG Wei;  ZHANG Benjiang;  LIU Xingfa;  LIU Hanqi
（1.School of Mechanics and Engineering,Liaoning Technical University,Fuxin Liaoning 123000,China;
2.Institute of Disaster Rock Mechanics,Liaoning University,Shenyang Liaoning 110036,China;
3.Key Laboratory of Coalburst Theory and Prevention Technology,National Mine Safety Administration,Shenyang Liaoning 110036,China;
4.Shenyang Coking Coal Energy Group Co.,Ltd,Shenyang Liaoning 110122,China;
5.Fushun Mining Group Co.,Ltd,Fushun Liaoning 113008,China）
关键词:
围压; 钻孔; 力学特性; 能量耗散; 颗粒流
Keywords:
confining pressure;  borehole;  mechanical properties;  energy dissipation;  particle flow
分类号:
X936
DOI:
10.11731/j.issn.1673-193x.2026.04.007
文献标志码:
A
摘要:
为研究不同围压条件下钻孔直径与数量对煤样力学行为、能量耗散及损伤演化的影响规律，采用离散元常规三轴数值模拟试验，系统分析含不同钻孔参数煤样的力学响应、能量演化机制与损伤累积过程。研究结果表明：围压显著增强煤样强度、应变及弹性模量，钻孔则削弱其力学性能，但其弱化程度随围压升高而减弱；煤样裂纹数量与耗散能与围压和钻孔参数变化呈正相关关系；煤样峰后损伤在低围压时随孔径增大而减小，高围压时随孔径增大而升高；钻孔数量增加使煤样在低围压时损伤先降后升，高围压时呈持续上升趋势。围压增加促使裂纹发育更密集，裂纹扩展受钻孔布置方式显著调控：单孔煤样呈现X型共轭剪切破坏特征，多孔煤样则形成多级交叉状共轭剪切带。研究结果可为深部煤层卸压参数优化提供参考。
Abstract:
In order to investigate the influence of borehole diameter and number on the mechanical behavior,energy dissipation,and damage evolution of coal samples under different confining pressures,conventional triaxial numerical simulations using the discrete element method were conducted.The mechanical response,energy evolution mechanisms,and damage accumulation process of coal samples containing various borehole parameters were systematically analyzed.The results revealed that confining pressure significantly enhances the strength,strain,and elastic modulus of coal samples,while boreholes weaken these properties,with the weakening effect diminishing as confining pressure increases.The number of cracks and the dissipated energy showed a positive correlation with both increasing confining pressure and variations in borehole parameters.Post-peak damage decreases with increasing borehole diameter under low confining pressure but increases under high confining pressure.An increase in the number of boreholes leads to an initial decrease followed by an increase in damage under low confining pressure,while under high confining pressure,damage exhibits a continuous increasing trend.An increase in confining pressure promotes denser crack development,and crack propagation is significantly controlled by the borehole layout: single-borehole samples exhibit X-shaped conjugate shear failure characteristics,while multi-borehole samples develop multi-level cross-shaped conjugate shear bands.

参考文献/References:

［1］潘一山,宋义敏,刘军.我国煤矿冲击地压防治的格局、变局和新局［J］.岩石力学与工程学报,2023,42(9):2081-2095. PAN Yishan,SONG Yimin,LIU Jun.Pattern、change and new situation of coal mine rock burst prevention and control in China［J］.Chinese Journal of Rock Mechanics and Engineering,2023,42(9):2081-2095.
［2］齐庆新,马世志,孙希奎,等.煤矿冲击地压源头防治理论与技术架构［J］.煤炭学报,2023,48(5):1861-1874. QI Qingxin,MA Shizhi,SUN Xikui,et al.Theory and technical framework of coal mine rock burst origin prevention［J］ Journal of China Coal Society,2023,48(5):1861-1874.
［3］马斌文.钻孔卸压防治冲击地压研究［D］.北京：煤炭科学研究总院,2018.
［4］兰永伟.钻孔卸压防治煤矿冲击地压的研究［D］.阜新：辽宁工程技术大学,2005.
［5］马衍坤,李笑笑,翟少彬,等.含预制钻孔煤体承载破坏应变场与声发射响应真三轴试验［J］.中国矿业大学学报,2024,53(3):497-508. MA Yankun,LI Xiaoxiao,ZHAI Shaobin,et al.The true triaxial test of strain field and acoustic emission response of bearing failure of coal with prefabricated bore hole［J］.Journal of China University of Mining & Technology,2024,53(3):497-508.
［6］焦振华,倪志辉,胡浩,等.单轴压缩下含钻孔煤样力学行为试验与数值模拟［J］.煤炭科学技术,2025,53(增刊 1):108-119. JIAO Zhenhua,NI Zhihui,HU Hao,et al.Testing and numerical simulation of mechanical behavior of drilled coal samples under uniaxial compression［J］.Coal Science and Technology,2025,53(Supplement 1):108-119.
［7］张寅,尹立冬,代连朋,等.高应变率下钻孔煤样冲击破坏试验及数值研究［J］.振动与冲击,2024,43(9):309-320. ZHANG Yin,YIN Lidong,DAI Lianpeng,et al.Test and numerical study on impact failure of drilling coal samples under high strain rate［J］.Journal of Vibration and Shock,2024,43(9):309-320.
［8］丁可,张华磊,王连国,等.深部巷帮钻孔煤体损伤演化特征及钻孔围岩强度弱化机理［J］.煤炭学报,2024,49(12):4798-4821. DING Ke,ZHANG Hualei,WANG Lianguo,et al.Study on damage evolution characteristies of borehole coal body and strength weakening mechanism of borehole surrounding rock in deep roadway［J］.Journal of China Coal Society,2024,49(12):4798-4821.
［9］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.
［10］田文岭,杨圣奇,方刚.煤样三轴循环加卸载力学特征颗粒流模拟［J］.煤炭学报,2016,41(3):603-610. TIAN Wenling,YANG Shengqi,FANG Gang.Particle flow simulation on mechanical behavior of coal specimen undertriaxial cyclic loading and unloading［J］ Journal of China Coal Society,2016,41(3):603-610.
［11］吴锋锋,谷浩源,杨培举,等.深部软岩大变形巷道变径分区卸压围岩控制技术及应用［J］.煤炭科学技术,2025,53(2):53-67. WU Fengfeng,GU Haoyuan,YANG Peiju,et al.Control technology and application of variable-diameter zoned pressure relief for surrounding rock in eep soft rock and large deformation roadway［J］.Coal Science and Technology,2025,53(2):53-67.
［12］王猛,王襄禹,肖同强.深部巷道钻孔卸压机理及关键参数确定方法与应用［J］.煤炭学报,2017,42(5):1138-1145. WANG Meng,WANG Xiangyu,XIAO Tongqiang.Borehole destressing mechanism and determination method of its key parameters in deep roadway［J］ Journal of China Coal Society,2017,42(5):1138-1145.
［13］崔力,张民波,王金宝,等.不同围压下煤岩损伤变形规律及声发射特征分析［J］.中国安全生产科学技术,2019,15(10):18-24. CUI Li,ZHANG Minbo,WANG Jinbao,et al.Analysis on damage deformation laws and acoustic emission characteristics of coal rock under different confining pressures［J］ Journal of Safety Science and Technology,2019,15(10):18-24.
［14］ZHANG Y,MA C,ZOU M,et al.Thermomechanical failure analysis of sandstone subjected to high ground temperature［J］.Journal of Rock Mechanics and Geotechnical Engineering,2025,17(6): 3524-3545.
［15］谢和平,彭瑞东,鞠杨,等.岩石破坏的能量分析初探［J］.岩石力学与工程学报,2005(15):2603-2608. XIE Heping,PENG Ruidong,JU Yang,et al.On energy analysis of rock failure［J］.Chinese Journal of Rock Mechanics and Engineering,2005(15):2603-2608.
［16］于辉,刘少伟,贾后省,等.不同围压下闭合单裂隙砂岩力学响应及能量耗散机制研究［J］.采矿与安全工程学报,2020,37(2):385-393. YU Hui,LIU Shaowei,JIA Housheng,et al.Mechanical response and energy dissipation mechanism of closed single fractured sandstone under different confining pressures［J］.Journal of Mining & Safety Engineering,2020,37(2):385-393.

相似文献/References:

[1]李尧斌,朱丹.钻孔抽采瓦斯量影响因素分析与工程实践[J].中国安全生产科学技术,2014,10(11):124.[doi:10.11731/j.issn.1673-193x.2014.11.021]
　LI Yao-bin,ZHU Dan.Study on influence factors of drilling gas drainage and engineering practice[J].Journal of Safety Science and Technology,2014,10(4):124.[doi:10.11731/j.issn.1673-193x.2014.11.021]
[2]汪宏伟.风机基础环松动原因分析和注浆加固[J].中国安全生产科学技术,2016,12(3):104.[doi:10.11731/j.issn.1673-193x.2016.03.019]
　WANG Hongwei.Cause analysis and grouting reinforcement on loose foundation ring of wind turbine[J].Journal of Safety Science and Technology,2016,12(4):104.[doi:10.11731/j.issn.1673-193x.2016.03.019]
[3]宫伟东,解学才,梁跃强,等.2种原煤样渗透性对比试验研究[J].中国安全生产科学技术,2017,13(3):47.[doi:10.11731/j.issn.1673-193x.2017.03.007]
　GONG Weidong,XIE Xuecai,LIANG Yueqiang,et al.Comparative experimental research on permeability of two kinds of raw coal samples[J].Journal of Safety Science and Technology,2017,13(4):47.[doi:10.11731/j.issn.1673-193x.2017.03.007]
[4]张民波,雷克江,吝曼卿,等.加轴压卸围压下含瓦斯煤岩损伤变形的能量演化机制[J].中国安全生产科学技术,2018,14(4):45.[doi:10.11731/j.issn.1673-193x.2018.04.007]
　ZHANG Minbo,LEI Kejiang,LIN Manqing,et al.Energy evolution mechanism for damage deformation of gas-containing coal rock under loading axial pressure and unloading confining pressure[J].Journal of Safety Science and Technology,2018,14(4):45.[doi:10.11731/j.issn.1673-193x.2018.04.007]
[5]张迪,王世杰,章光,等.考虑岩石抗拉强度受围压影响的地层破裂压模型[J].中国安全生产科学技术,2020,16(4):38.[doi:10.11731/j.issn.1673-193x.2020.04.006]
　ZHANG Di,WANG Shijie,ZHANG Guang,et al.Model of formation fracture pressure considering influence of confining pressure on tensile strength of rock[J].Journal of Safety Science and Technology,2020,16(4):38.[doi:10.11731/j.issn.1673-193x.2020.04.006]
[6]薛珂,王江涛,张毓颖,等.三轴加载条件下层理煤体的力学特性和破坏机制研究[J].中国安全生产科学技术,2023,19(12):71.[doi:10.11731/j.issn.1673-193x.2023.12.009]
　XUE Ke,WANG Jiangtao,ZHANG Yuying,et al.Study on mechanical properties and failure mechanism of layered coal under triaxial loading conditions[J].Journal of Safety Science and Technology,2023,19(4):71.[doi:10.11731/j.issn.1673-193x.2023.12.009]

备注/Memo

备注/Memo:
收稿日期： 2025-10-15
* 基金项目： 国家自然科学基金面上项目（52374201）
作者简介： 王爱文，博士，教授，主要研究方向为煤矿动力灾害防治。
通信作者： 李超然，硕士研究生，主要研究方向为煤矿动力灾害防治。
更新日期/Last Update: 2026-04-29