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| Rockburst characteristics and prediction in deep roadways with straight structural planes under dynamic disturbance |
| LI Mingliang1, 2, QIN Qingci 3, LI Kegang1, 2, WU Su4 |
(1. School of Land and Resources Engineering, Kunming University of Science and Technology, Kunming, Yunnan 650093, China;
2. Yunnan Key Laboratory of Sino-German Blue Mining and Utilization of Special Underground Space, Kunming, Yunnan 650093, China; 3. Faculty of Public Security and Emergency Management, Kunming University of Science and Technology, Kunming,
Yunnan 650093, China; 4. Power China, Kunming Engineering Corporation Limited, Kunming, Yunnan 650051, China) |
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Abstract To investigate the characteristics of rockburst failure and the intensity levels of rockbursts in deep-buried roadways with straight walls and structural planes, a true-triaxial test was conducted on cubic limestone samples extracted from indoor arched roadways featuring straight walls and structural planes. The failure of the rock mass was monitored in real-time using a miniature camera and acoustic emission techniques. The stress coefficient for the rock mass was defined using Fish language and subsequently imported into FLAC3D numerical simulation software to predict the rockburst intensity levels of roadways with concealed straight structural planes. The research findings indicate that the straight-wall arch-shaped specimen without exposed straight structural planes experiences rockburst failure, whereas the specimen with exposed straight structural planes undergoes rock slab cracking failure. Furthermore, the extent of damage and the depth of the “V” groove failure zone in the former specimen is greater than that in the latter. The cumulative ringing count and absolute energy of acoustic emissions from the unexposed flat structure test sample exceed those of the exposed straight structure test sample. Notably, the proportion of shear failure in the unexposed straight structure test sample during the entire loading process is significantly lower compared to that of the exposed straight structure sample. The presence of undisclosed straight structural planes leads to variations in the rockburst intensity levels across different sections of the roadway. Specifically, the rockburst intensity level of the side walls containing undisclosed straight structural planes has increased from level 1 to level 2. These research results offer new insights for the prevention and control of rockbursts in underground caverns subjected to high stress and dynamic disturbances.
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[1] 钱七虎. 岩爆、冲击地压的定义、机制、分类及其定量预测模型[J]. 岩土力学，2014，35(1)：1–6.(QIAN Qihu. Definition，mechanism，classification and quantitative forecast model for rockburst and pressure bump[J]. Rock and Soil Mechanics，2014，35(1)：1–6.(in Chinese))
[2] 孙飞跃，郭佳奇，张小兵，等. 真三轴单面卸荷条件下隧道岩爆特征的径向应力梯度效应研究[J]. 岩石力学与工程学报，2025，44(2)：373–390.(SUN Feiyue，GUO Jiaqi，ZHANG Xiaobing，et al. Research on the radial stress gradient effect of rockburst characteristics in tunnel under true triaxial condition with single-side unloading[J]. Chinese Journal of Rock Mechanics and Engineering，2025，44(2)：373–390.(in Chinese))
[3] GONG F Q，WU W X，REN L. Rockburst process and strength- weakening effect of the high-stress circular tunnel under internal unloading[J]. Journal of Rock Mechanics and Geotechnical Engineering，2023，15(4)：864–885.
[4] 李育宗，袁 亮，张庆贺，等. 含结构面岩体岩爆特征真三轴试验研究[J]. 岩石力学与工程学报，2024，43(1)：120–132.(LI Yuzong，YUAN Liang，ZHANG Qinghe，et al. True-triaxial experimental study on the rockburst characteristics of rock mass with a structural plane[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(1)：120–132.(in Chinese))
[5] 李 群，胡子浩，李示波，等. 真三轴条件下含隐伏结构面岩体的岩爆特征研究[J]. 中国矿业大学学报，2025，54(3)：623–639.(LI Qun，HU Zihao，LI Shibo，et al. True-triaxial study on the rockburst characteristics of rock mass with a hidden structural plane[J]. Journal of China University of Mining and Technology，2025，54(3)：623–639. (in Chinese))
[6] 韩世迎，王航龙，彭 俊，等. 结构面影响深埋隧道硬质围岩岩爆特征试验研究[J]. 岩土力学，2025，46(6)：1 765–1 776.(HAN Shiying，WANG Hanglong，PENG Jun，et al. Experimental investigation on structural plane-induced rockburst of a hard surrounding rock with circular tunnel under true triaxial condition[J]. Rock and Soil Mechanics，2025，46(6)：1 765–1 776.(in Chinese))
[7] SU G S，YAN X Y，ZHENG Z，et al. Experimental study on the influence of a small-scale single structural plane on rockburst in deep tunnels[J]. Rock Mechanics and Rock Engineering，2023，56(1)：669–701.
[8] ZHANG Z R，WU S C，CHENG H Y，et al. Experimental study on the influence of structural planes on rockbursts in deep-buried hard-rock tunnels[J]. Rock Mechanics and Rock Engineering，57(10)：8 057–8 080.
[9] FENG F，ZHANG T，CHEN S J，et al. Analysis of failure properties of red sandstone with structural plane subjected to true triaxial stress paths[J]. Engineering Fracture Mechanics，2024，310：110490.
[10] HEUNIS R. The development of rockburst control strategies for South African gold mines[J]. Journal of the Southern African Institute of Mining and Metallurgy，1980，80(4)：139–150.
[11] 冯 帆，谢志伟，陈绍杰，等. 真三轴卸载–动力扰动下含裂隙砂岩破坏特性研究[J]. 岩石力学与工程学报，2025，44(3)：618–637. (FENG Fan，XIE Zhiwei，CHEN Shaojie，et al. Investigation on the failure characteristics of fissured sandstone under true triaxial unloading and dynamic disturbance condition[J]. Chinese Journal of Rock Mechanics and Engineering，2025，44(3)：618–637.(in Chinese))
[12] 蔡 鑫，陈立业，周子龙，等. 扰动诱发高应力岩石动力响应及岩爆灾变机制[J]. 中国有色金属学报，2024，34(7)：2 463–2 475. (CAI Xin，CHEN Liye，ZHOU Zilong，et al. Dynamic response law of high-stressed rock triggered by dynamic loading and mechanism of rockburst occurrence[J]. The Chinese Journal of Nonferrous Metals，2024，34(7)：2 463–2 475.(in Chinese))
[13] JIANG J Q，SU G S，LIU Y X，et al. Effect of the propagation direction of the weak dynamic disturbance on rock failure：an experimental study[J]. Bulletin of Engineering Geology and the Environment，2021，80(2)：1 507–1 521.
[14] MORISSETTE P，HADJIGEORGIOU J. Ground support design for dynamic loading conditions：A quantitative data-driven approach based on rockburst case studies[J]. Journal of Rock Mechanics and Geotechnical Engineering，2019，11(5)：909–919.
[15] REN F Q，ZHU C，KARAKUS M，et al. Rockburst mitigation mechanisms of pressure relief borehole and rock bolt support: Insights from granite true triaxial unloading rockburst tests[J]. Engineering Geology，2024，336：107571.
[16] FARADONBEH R S，TAHERI A，SOUSA L R E，et al. Rockburst assessment in deep geotechnical conditions using true-triaxial tests and data-driven approaches[J]. International Journal of Rock Mechanics and Mining Sciences，2020，128：104279.
[17] MANOUCHEHRIAN A，CAI M. Numerical modeling of rockburst near fault zones in deep tunnels[J]. Tunnelling and Underground Space Technology，2018，80：164–180.
[18] 黄叶宁，邓华锋，李建林，等. 静载和动力扰动联合作用下砂岩时滞性破坏试验研究[J]. 岩土力学，2025，46(1)：213–224.(HUANG Yening，DENG Huafeng，LI Jianlin，et al. Experimental study on time-delayed failure of sandstone under the combined action of static load and dynamic disturbance[J]. Rock and Soil Mechanics，2025，46(1)：213–224.(in Chinese))
[19] 伍武星，宫凤强，高明忠，等. 冲击扰动下断面形状对深部隧洞岩爆的影响研究[J]. 岩石力学与工程学报，2024，43(9)：2 257–2 272. (WU Wuxing，GONG Fengqiang，GAO Mingzhong，et al. Study on the influence of cross-section shape on rockburst of deep tunnels under impact disturbance[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(9)：2 257–2 272.(in Chinese))
[20] 王 炀，刘冬桥，任富强，等. 动载与长轴位置关系对椭圆形洞室围岩冲击岩爆影响试验研究[J]. 岩土力学，2022，43(9)：2 347– 2 359.(WANG Yang，LIU Dongqiao，REN Fuqiang，et al. Experimental study on influence of positional relationship between dynamic load and long axis on impact rockburst in an elliptical cavern[J]. Rock and Soil Mechanics，2022，43(9)：2 347–2 359.(in Chinese))
[21] 刘冬桥，胡天祥，王 炀，等. 动载频率对砂岩冲击岩爆影响的实验研究[J]. 岩石力学与工程学报，2022，41(7)：1 310–1 324.(LIU Dongqiao，HU Tianxiang，WANG Yang，et al. Experimental study of the effect of loading frequency on the impact rockburst of sandstone[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(7)：1 310–1 324.(in Chinese))
[22] 邓树新，王明洋，李 杰，等. 冲击扰动下滑移型岩爆的模拟试验及机理探讨[J]. 岩土工程学报，2020，42(12)：2 215–2 221.(DENG Shuxin，WANG Mingyang，LI Jie，et al. Mechanism and simulation experiment of slip-type rock bursts triggered by impact disturbances[J]. Chinese Journal of Geotechnical Engineering，2020，42(12)：2 215–2 221.(in Chinese))
[23] 刘岩鑫，蒋剑青，苏国韶，等. 弱动力扰动对花岗岩圆形隧洞岩爆影响的试验研究[J]. 爆炸与冲击，2020，40(9)：88–99.(LIU Yanxin，JIANG Jianqing，SU Guoshao，et al. Experimental study on influence of weak dynamic disturbance on rockburst of granite in a circular tunnel[J]. Explosion and Shock Waves，2020，40(9)：88–99.(in Chinese))
[24] LING K，SUN J，HAN Z J，et al. Experimental study on the failure behavior of rockburst induced by a dynamic disturbance in the circular chamber for deep underground engineering[J]. Engineering Failure Analysis，2024，164：108708.
[25] JIANG J Q，SU G S，ZHANG X H，et al. Effect of initial damage on remotely triggered rockburst in granite：an experimental study[J]. Bulletin of Engineering Geology and the Environment，2020，79(6)：3 175–3 194.
[26] WANG Y，ZHU C，HE M C，et al. Fragmentation characteristics analysis of sandstone fragments for impact rockburst under different dynamic loading frequency[J]. Geotechnical and Geological Engineering，2019，37(4)：2 715–2 727.
[27] HE M C，REN F Q，CHENG C. Experimental and numerical analyses on the effect of stiffness on bedded sandstone strain burst with varying dip angle[J]. Bulletin of Engineering Geology and the Environment，2019，78(5)：3 593–3 610.
[28] SU G S，YAN X Y，JIANG J Q. Influence of weak dynamic disturbances on rockburst occurring in the borehole containing a small-scale single structural plane：an experimental study[J]. Rock Mechanics and Rock Engineering，2024，57(8)：5 997–6 030.
[29] SU G S，HU L H，FENG X T，et al. True triaxial experimental study of rockbursts induced by ramp and cyclic dynamic disturbances[J]. Rock Mechanics and Rock Engineering，2018，51(4)：1 027–1 045.
[30] LI J，ZHAO J，GONG S Y，et al. Mechanical anisotropy of coal under coupled biaxial static and dynamic loads[J]. International Journal of Rock Mechanics and Mining Sciences，2021，143：104807.
[31] HE B G，WANG L，FENG X T，et al. Failure modes of jointed granite subjected to weak dynamic disturbance under true-triaxial compression[J]. Rock Mechanics and Rock Engineering，2023，56(11)：7 939–7 957.
[32] CHENG T，HE M C，LI H R，et al. Experimental investigation on the influence of a single structural plane on rockburst[J]. Tunnelling and Underground Space Technology，2023，132：104914.
[33] 罗丹旎，卢思航，苏国韶，等. 含预制单裂隙花岗岩的真三轴单面临空岩爆试验研究[J]. 岩土力学，2023，44(1)：75–87.(LUO Danni，LU Sihang，SU Guoshao，et al. Experimental study on rock burst of granite with prefabricated single crack under true-triaxial stress condition with a free face[J]. Rock and Soil Mechanics，2023，44(1)：75–87.(in Chinese))
[34] 赵扬锋，丁 玲，潘一山，等. 不同倾角断层滑移型岩爆黏滑过程声电响应特征研究[J]. 岩石力学与工程学报，2025，44(4)：781–796.(ZHAO Yangfeng，DING Ling，PAN Yishan，et al. Study on the characteristics of AE and charge induction signal during different dip angles fault stick-slip process with fault slip rockburst[J]. Chinese Journal of Rock Mechanics and Engineering，2025，44(4)：781–796. (in Chinese))
[35] 赵 菲，孟世卓，刘冬桥，等. 基于声发射信号特征的花岗岩岩爆破坏前兆信息研究[J]. 岩石力学与工程学报，2024，43(11)：2 669–2 686.(ZHAO Fei，MENG Shizhuo，LIU Dongqiao，et al. Failure precursor of granite rockburst based on acoustic emission signal characteristics[J]. Chinese Journal of Rock Mechanics and Engineering，2024，43(11)：2 669–2 686.(in Chinese))
[36] 王晓军，张 河，陈青林，等. 不同岩爆倾向性灰岩加载声发射特征及损伤模型[J]. 岩石力学与工程学报，2022，41(7)：1 373–1 383. (WANG Xiaojun，ZHANG He，CHEN Qinglin，et al. Acoustic emission characteristics and damage model of limestone loading with different rockburst tendencies[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(7)：1 373–1 383.(in Chinese))
[37] RUSSENSE B F. Analysis of rock spalling for tunnels in steep valley sides(in Norwegian)[Ph. D. Thesis][D]. Trondheim：Norwegian Institute of Technology，1974.
[38] 贺隆平，姚 囝，王其虎，等. 基于自动机器学习的岩爆烈度分级预测模型[J]. 岩土力学，2024，45(9)：2 839–2 848.(HE Longping，YAO Yu，WANG Qihu，et al. Rock burst intensity grading prediction model based on automatic machine learning[J]. Rock and Soil Mechanics，2024，45(9)：2 839–2 848.(in Chinese))
[39] 谭文侃，叶义成，胡南燕，等. LOF与改进SMOTE算法组合的强烈岩爆预测[J]. 岩石力学与工程学报，2021，40(6)：1 186–1 194. (TAN Wenkan，YE Yicheng，HU Nanyan，et al. Severe rock burst prediction based on the combination of LOF and improved SMOTE algorithm[J]. Chinese Journal of Rock Mechanics and Engineering，2021，40(6)：1 186–1 194.(in Chinese))
[40] ASKARIPOUR M，SAEIDI A，ROULEAU A，et al. Rockburst in underground excavations：A review of mechanism, classification, and prediction methods[J]. Underground Space，2022，7(4)：577–607. |
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2025, Vol. 44 
