[1]张寅,周雨,杨晨晨,等.不同冲击速度下锚固体劈裂力学响应研究*[J].中国安全生产科学技术,2026,22(4):73-80.[doi:10.11731/j.issn.1673-193x.2026.04.009]
ZHANG Yin,ZHOU Yu,YANG Chenchen,et al.Study on mechanical response of anchor solid splitting under different impact velocities[J].Journal of Safety Science and Technology,2026,22(4):73-80.[doi:10.11731/j.issn.1673-193x.2026.04.009]
点击复制
不同冲击速度下锚固体劈裂力学响应研究*
ZHANG Yin,ZHOU Yu,YANG Chenchen,et al.Study on mechanical response of anchor solid splitting under different impact velocities[J].Journal of Safety Science and Technology,2026,22(4):73-80.[doi:10.11731/j.issn.1673-193x.2026.04.009]
《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:
- 73-80
- 栏目:
- 安全工程技术
- 出版日期:
- 2026-04-30
文章信息/Info
- Title:
- Study on mechanical response of anchor solid splitting under different impact velocities
- 文章编号:
- 1673-193X(2026)-04-0073-08
- Keywords:
- impact loading; sandstone anchors; brazilian splitting; crack expansion; energy dissipation
- 分类号:
- X936
- 文献标志码:
- A
- 摘要:
- 为探究冲击速度对巷道围岩拉伸稳定性的影响，基于细砂岩锚固体试件研究其动态抗拉力学响应。采用分离式霍普金森压杆（split hopkinson pressure bar，SHPB）系统，在1.3~8.0 m/s冲击速度范围内对砂岩锚固体开展巴西劈裂冲击试验，利用VIC-2D应变测量系统与超高速摄像系统，分析动态应变演化、裂纹扩展过程及动态能量演化规律。研究结果表明：锚固体动态变形过程可划分为压密、弹性、微裂纹稳定发展、微裂纹不稳定发展、宏观裂纹稳定发展、宏观裂纹不稳定发展6个阶段；随着冲击速度升高，锚固体的动态抗拉强度从4.81 MPa增至10.22 MPa，表现出显著的应变率强化效应；裂纹起裂与扩展加快，起裂时间由120 μs缩短至80 μs，扩展时间由160 μs缩短至100 μs，破碎程度加剧；能量分析显示，反射能和吸收能随入射能增加而升高，而透射能受冲击速度变化影响不明显。吸收能经历弹性能储存、裂纹扩展及贯通耗能阶段；相比无锚试件，锚固体强度提高24.6%~32.9%，裂纹演化受阻，能量作用时间延长至200 μs，吸收能显著提升，表现出更好的抗冲击性能。研究结果可为深部巷道围岩抗拉稳定性控制及冲击地压防治提供参考。
- Abstract:
- In order to investigate the effect of impact velocity on the tensile stability of tunnel surrounding rock,this study examines the dynamic tensile mechanical response of fine sandstone anchor specimens.Using a split hopkinson pressure bar (SHPB) system,brazilian split impact tests were conducted on sandstone anchored specimens at impact velocities ranging from 1.3 to 8.0 m/s.The VIC-2D strain measurement system and an ultra-high-speed camera system were employed to analyze the dynamic strain evolution,crack propagation process,and dynamic energy evolution patterns.The results indicate that the dynamic deformation process of the anchored body can be divided into six stages:consolidation,elastic deformation,stable development of microcracks,unstable development of microcracks,stable development of macrocracks,and unstable development of macrocracks.As the impact velocity increases,the dynamic tensile strength of the anchored body rises from 4.81 MPa to 10.22 MPa,exhibiting a significant stress-rate hardening effect.Crack initiation and propagation accelerated,with the initiation time shortening from 120 μs to 80 μs and the propagation time from 160 μs to 100 μs,resulting in more severe fragmentation.Energy analysis showed that reflected and absorbed energy increased with incident energy,while transmitted energy was not significantly affected by changes in impact velocity.The absorbed energy undergoes stages of elastic energy storage,crack propagation,and energy dissipation upon crack penetration.Compared to unanchored specimens,the strength of the anchored specimens increased by 24.6% to 32.9%,crack propagation was impeded.The duration of energy application was extended to 200 μs,and the absorbed energy significantly increased,demonstrating superior impact resistance.The study providing an valuable insights for controlling the tensile stability of deep tunnel surrounding rock and for the prevention and control of rockburst.
参考文献/References:
［1］窦林名,田鑫元,曹安业,等.我国煤矿冲击地压防治现状与难题［J］.煤炭学报,2022,47(1):152-171.
DOU Linming,TIAN Xinyuan,CAO Anye,et al.Present situation and problems of coal mine rock burst prevention and control in China［J］.Journal of China Coal Society,2022,47(1):152-171.
［2］姜耀东,潘一山,姜福兴,等.我国煤炭开采中的冲击地压机理和防治［J］.煤炭学报,2014,39(2):205-213.
JIANG Yaodong,PAN Yishan,JIANG Fuxing,et al.State of the art review on mechanism and prevention of coal bumps in China［J］.Journal of China Coal Society,2014,39(2):205-213.
［3］何满潮,钱七虎．深部岩体力学基础［M］．北京:科学出版社,2010.
［4］马斌文,谢和平,张修峰,等.动载扰动下巷道围岩冲击破坏与能量释放规律研究［J］.采矿与岩层控制工程学报,2024,6(4):5-22.
MA Binwen,XIE Heping,ZHANG Xiufeng,et al.Study on the impact failure and energy release of surrounding rock of roadway under dynamic disturbance［J］.Journal of Mining and Strata Control Engineering,2024,6(4):5-22.
［5］张俊文,宋治祥,刘金亮,等.煤矿深部开采冲击地压灾害结构调控技术架构［J］.煤炭科学技术,2022,50(2):27-36.
ZHANG Junwen,SONG Zhixiang,LIU Jinliang,et al.Architecture of structural regulation technology for rock burst disaster in deep mining of coal mine［J］.Coal Science and Technology,2022,50(2):27-36.
［6］李伟,谢和平,王启智.大理岩动态劈裂拉伸的SHPB实验研究［J］.爆炸与冲击,2006,26(1):12-20.
LI Wei,XIE Heping,WANG Qizhi,et al.Experimental study of SHPB for dynamic splitting and stretching of marble rocks［J］.Journal of Explosion and Shock Waves,2006,26(1):12-20.
［7］赵环帅,潘永泰,乔鑫,等.不同加载速率下青砂岩抗拉特征及能量耗散规律研究［J］.北京大学学报(自然科学版),2025,61(5):839-852.
ZHAO Huanshuai,PAN Yongtai,QIAO Xin,et al.Tensile properties and energy consumption law in green sandston under different loading［J］.Acta Scientiarum Naturalium Universitatis Pekinensis,2025,61(5):839-852.
［8］刘晓辉,薛洋,郑钰,等.冲击荷载下煤岩破碎过程能量释放研究［J］.岩石力学与工程学报,2021,40(增刊 2):3201-3211.
LIU Xiaohui,XUE Yang,ZHENG Yu,et al.Research on energy release in coal rock fragmentation process under impact load［J］.Chinese Journal of Rock Mechanics and Engineering,2021,40(Supplement 2):3201-3211.
［9］BHATTACHARYA R,BENITEZ R,RADOVIC M,et al.High strain-rate response and deformation mechanisms in polycrystalline Ti2AIC［J］.Materials Science and Engineering A,2014,598:319-326.
［10］JANKOWIAK T,RUSINEK A,VOYIADJIS Z G.Modeling and design of SHPB to characterize brittle materials under compression for high strain rates［J］.Materials,2020,13(9):2191-2191.
［11］PHAM T M,JOHN D,SAN N H,et al.Experimental investigation on dynamic properties of ultra-high-performance rubberized concrete (UHPRuC)［J］.Construction and Building Materials,2021,307:125104.
［12］张寅,杨晨晨,代连朋,等.高应变率下锚固体动态力学特性及能量耗散研究［J］.振动与冲击,2025,44(2):11-20.
ZHANG Yin,YANG Chenchen,DAI Lianpeng,et al.Dynamic mechanical properties and energy dissipation of an anchorage body under high strain rate impact［J］. Journal of Vibration and Shock,2025,44(2):11-20.
［13］韦四江,翟黎伟,王猛,等.加锚巴西圆盘煤样抗拉力学响应特征试验研究［J］.采矿与安全工程学报,2023,40(1):145-154,163.
WEI Sijiang,ZHAI Liwei,WANG Meng,et al.Experimental study on tensile mechanical response characteristics of anchored brazilian disc coal samples［J］.Journal of Mining & Safety Engineering,2023,40(1):145-154,163.
［14］洪亮.冲击荷载下岩石强度及破碎能耗特征的尺寸效应研究［D］.长沙：中南大学,2008.
［15］洪亮,李夕兵,马春德,等.岩石动态强度及其应变率灵敏性的尺寸效应研究［J］.岩石力学与工程学报,2008(3):526-533.
HONG Liang,LI Xibing,MA Chunde,et al.Study on size effect of rock dynamic strength and strain rate sensitivity［J］.Chinese Journal of Rock Mechanics and Engineering,2008(3):526-533.
［16］平琦,马芹永,袁璞.岩石试件SHPB劈裂拉伸试验中能量耗散分析［J］.采矿与安全工程学报,2013,30(3):401-407.
PING Qi,MA Qinyong,YUAN Pu,et al.Energy dissipation analysis of stone specimens in SHPB tensile test［J］.Journal of Mining & Safety Engineering,2013,30(3):401-407.
相似文献/References:
[1]李利萍,王淋,邰英楼.动静组合加载作用下块系岩体动力响应分析[J].中国安全生产科学技术,2016,12(11):5.[doi:10.11731/j.issn.1673-193x.2016.11.001]
LI Liping,WANG Lin,TAI Yinglou.Dynamic response analysis on block rock mass under combined static-dynamic load[J].Journal of Safety Science and Technology,2016,12(4):5.[doi:10.11731/j.issn.1673-193x.2016.11.001]
[2]高建良,王文祺,吴泽琳,等.回采工作面瓦斯爆炸风门冲击载荷研究*[J].中国安全生产科学技术,2021,17(5):73.[doi:10.11731/j.issn.1673-193x.2021.05.011]
GAO Jianliang,WANG Wenqi,WU Zelin,et al.Research on impact load of damper by gas explosion in mining face[J].Journal of Safety Science and Technology,2021,17(4):73.[doi:10.11731/j.issn.1673-193x.2021.05.011]
[3]焦振华,杨利文,袁安营,等.含钻孔煤样动态力学特性试验与数值模拟研究*[J].中国安全生产科学技术,2024,20(12):57.[doi:10.11731/j.issn.1673-193x.2024.12.008]
JIAO Zhenhua,YANG Liwen,YUAN Anying,et al.Experimental and numerical simulation study on dynamic mechanical properties of coal specimens with borehole[J].Journal of Safety Science and Technology,2024,20(4):57.[doi:10.11731/j.issn.1673-193x.2024.12.008]
备注/Memo
- 备注/Memo:
-
收稿日期： 2025-12-11
* 基金项目： 国家自然科学基金项目(52174116)
作者简介： 张寅，博士，教授，主要研究方向为煤矿冲击地压和采场覆岩运动。
通信作者： 周雨，硕士研究生，主要研究方向为矿山动力灾害防治。
