Development and application of a large-scale experimental system for roadway rockburst induced by fault slip
KANG Hongpu1, 2, 3*, GAO Fuqiang1, 2, 3, WANG Xiaoqing1, 2, 3, YUAN Guiyang1, 2, 3, YANG Lei1, 2, 3, LOU Jinfu1, 2, 3
(1. CCTEG Coal Mining Research Institute, Beijing 100013, China; 2. State Key Laboratory of Intelligent Coal Mining and Strata Control, Beijing 100013, China; 3. Coal Mining Branch, China Coal Research Institute, Beijing 100013, China)
Abstract：To enable experimental simulation of roadway rockburst induced by fault slip, some experimental principles were distilled based on rockburst process analysis. A large-scale experimental system for simulating roadway rockburst induced by fault slip was developed. The key functions and performance of the system were verified, and physical experiments were conducted to reproduce the phenomena of roadway rockburst induced by fault slip, thereby validating the system?s feasibility in simulating such dynamic events. The results show that: (1) A large-scale experimental system for roadway rockburst induced by fault slip is developed, with model dimensions of 3.0 m×1.5 m×1.5 m. The system features three-directional and four-surface loading capabilities, a maximum loading capacity of 20 MPa, and a loading precision of 0.15% F.S. The system has the function of rapid shear slip for faults, applicable to fault dip angles of 45°–90°. The main reaction frame innovatively adopts a concave-convex interlocking structure connection, achieving high overall stiffness (with a deformation of less than 3 mm under full load). (2) A dense array loading technique suitable for ultra-large-scale models under ultra-high stress is proposed. A compact array loader is invented, employing an embedded cylinder chamber and a shared wall design, enabling efficient multi-point and small-area uniform loading within limited space. This significantly improves load transfer effectiveness across large models. (3) A differential top-bottom coordinated loading method is developed to induce fault activation and slip in the model?s movable zone, where the bottom energy storage-loading is used for rapid retraction, and the top energy-storage loading is used for active follow-up loading. The minimum fault slip time can reach 6 s (slip amount 50 mm). (4) A fault-slip rockburst testing method is proposed, in which critical loading of the roadway is followed by fault activation and slip. During the fault slip process, seismic wave propagation is monitored, and two large-scale burst failures occur in the roadway, reproducing the complete chain process of “fault slip to generate seismic wave-wave propagation-seismic wave inducing roadway rockburst”. This study provides a robust experimental platform for investigating the mechanisms and mitigation strategies of roadway rockburst induced by fault slip.
康红普1，2，3*，高富强1，2，3，王晓卿1，2，3，原贵阳1，2，3，杨 磊1，2，3，娄金福1，2，3. 超大尺寸巷道断层滑移型冲击地压试验系统研制与应用[J]. 岩石力学与工程学报, 2026, 45(6): 1599-1614.
KANG Hongpu1, 2, 3*, GAO Fuqiang1, 2, 3, WANG Xiaoqing1, 2, 3, YUAN Guiyang1, 2, 3, YANG Lei1, 2, 3, LOU Jinfu1, 2, 3. Development and application of a large-scale experimental system for roadway rockburst induced by fault slip. , 2026, 45(6): 1599-1614.
[1] 潘一山，李忠华，章梦涛. 我国冲击地压分布、类型、机理及防治研究[J]. 岩石力学与工程学报，2003，22(11)：1 844–1 851.(PAN Yishan，LI Zhonghua，ZHANG Mengtao. Distribution，type，mechanism and prevention of rockbrust in China[J]. Chinese Journal of Rock Mechanics and Engineering，2003，22(11)：1 844–1 851.(in Chinese))
[2] 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))
[3] 潘一山，王来贵，章梦涛，等. 断层冲击地压发生的理论与试验研究[J]. 岩石力学与工程学报，1998，17(6)：642–649.(PAN Yishan，WANG Laigui，ZHANG Mengtao，et al. The theoretical and testing study of fault rockburst[J]. Chinese Journal of Rock Mechanics and Engineering，1998，17(6)：642–649.(in Chinese))
[4] 李志华，窦林名，曹安业，等. 采动影响下断层滑移诱发煤岩冲击机理[J]. 煤炭学报，2011，36(增1)：69–73.(LI Zhihua，DOU Linming，CAO Anye，et al. Mechanism of fault slip induced rockburst during mining[J]. Journal of China Coal Society，2011，36(Supp.1)：69–73.(in Chinese))
[5] 李志华，窦林名，陆振裕，等. 采动诱发断层滑移失稳的研究[J]. 采矿与安全工程学报，2010，27(4)：499–504.(LI Zhihua，DOU Linming，LU Zhenyu，et al. Study of the fault slide destabilization induced by coal mining[J]. Journal of Mining and Safety Engineering，2010，27(4)：499–504.(in Chinese))
[6] 王宏伟，王 晴，石瑞明，等. 煤矿冲击地压与断层构造失稳的多物理场互馈机制研究进展[J]. 煤炭学报，2022，47(2)：762–790. (WANG Hongwei，WANG Qing，SHI Ruiming，et al. A review on the interaction mechanism between coal bursts and fault structure instability from the perspective of multi-physical field[J]. Journal of China Coal Society，2022，47(2)：762–790.(in Chinese))
[7] 王爱文，潘一山，李忠华，等. 断层作用下深部开采诱发冲击地压相似试验研究[J]. 岩土力学，2014，35(9)：2 486–2 492.(WANG Aiwen，PAN Yishan，LI Zhonghua，et al. Similar experimental study of rockburst induced by mining deep coal seam under fault action[J]. Rock and Soil Mechanics，2014，35(9)：2 486–2 492.(in Chinese))
[8] 张宁博，单仁亮，赵善坤，等. 卸载条件下逆冲断层滑移实验研究[J]. 煤炭学报，2021，46(12)：3 794–3 804.(ZHANG Ningbo，SHAN Renliang，ZHAO Shankun，et al. Experiment of thrust fault slipping under unloading[J]. Journal of China Coal Society，2021，46(12)：3 794–3 804.(in Chinese))
[9] 王 涛，姜耀东，赵毅鑫，等. 断层活化与煤岩冲击失稳规律的实验研究[J]. 采矿与安全工程学报，2014，31(2)：180–186.(WANG Tao，JIANG Yaodong，ZHAO Yixin，et al. Experimental research on fault reactivation and relating coal bumps[J]. Journal of Mining and Safety Mining，2014，31(2)：180–186.(in Chinese))
[10] 吕进国，王 涛，丁维波，等. 深部开采逆断层对冲击地压的诱导机制[J]. 煤炭学报，2018，43(2)：405–416.(LYU Jinguo，WANG Tao，DING Weibo，et al. Induction mechanisms of coal bumps caused by thrust faults during deep mining[J]. Journal of China Coal Society，2018，43(2)：405–416.(in Chinese))
[11] 谭云亮，谭 涛，张修峰，等. 正断层两盘动力灾害显现差异性及机制[J]. 煤炭科学技术，2023，51(1)：214–223.(TAN Yunliang，TAN Tao，ZHANG Xiufeng，et al. Difference and mechanism of dynamic behaviors between two walls of normal fault[J]. Coal Science and Technology，2023，51(1)：214–223.(in Chinese))
[12] 王晓卿，高富强，李建忠，等. 开挖诱导锁固断层滑移的实现方式及影响因素[J]. 煤炭学报，2021，46(增2)：692–700.(WANG Xiaoqing，GAO Fuqiang，LI Jianzhong，et al. Realization method and influencing factors of excavation-induced slip for locked fault[J]. Journal of China Coal Society，2021，46(Supp.2)：692–700.(in Chinese))
[13] CAI W，DOU L M，SI G Y，et al. Fault-induced coal burst mechanism under mining induced static and dynamic stresses[J]. Engineering，2021，7(5)：687–700.
[14] BRACE W F，BYERLEE J D. Stick-slip as a mechanism for earthquakes[J]. Science，1966，153(3739)：990–992.
[15] 宋义敏，马少鹏，杨小彬，等. 断层黏滑动态变形过程的实验研究[J]. 地球物理学报，2012，55(1)：171–179.(SONG Yimin，MA Shaopeng，YANG Xiaobin，et al. Experimental study on the displacement evolution of fault in stick-slip process[J]. Chinese Journal of Geophysics，2012，55(1)：171–179.(in Chinese))
[16] 赵扬锋，樊 艺，荆 刚，等. 断层黏滑失稳过程声发射特征试验研究[J]. 岩石力学与工程学报，2022，41(增2)：3 101–3 113.(ZHAO Yangfeng，FAN Yi，JING Gang，et al. Experimental study on acoustic emission characteristics in the process of fault stick-slip instability[J]. Chinese Journal of Rock Mechanics and Engineering，2022，41(Supp.2)：3 101–3 113.(in Chinese))
[17] LI Y Z，SU G S，PANG J Y，et al. Mechanism of structural-slip rockbursts in civil tunnels：an experimental investigation[J]. Rock Mechanics and Rock Engineering，2021，54：2 763–2 790.
[18] GREGORY C，DAVID A. Shear failure of a granite pin traversing a sawcut fault[J]. International Journal of Rock Mechanics and Mining Sciences，2018，110：97–110.
[19] ZHUO Y Q，GUO Y S，CHEN S Y，et al. Laboratory study on the effects of fault waviness on granodiorite stick-slip instabilities[J]. Geophysical Journal International，2020，221(2)：1 281–1 291.
[20] 吕进国，韩文鹤，张学朋，等. 采动影响下坚硬岩桥型断层活化与储能演变规律[J]. 煤炭学报，2025，50(2)：902–916.(LYU Jinguo，HAN Wenhe，ZHANG Xuepeng，et al. Evolution law of the activation and energy storage of fault with hard rock bridge under mining influence[J]. Journal of China Coal Society，2025，50(2)：902–916. (in Chinese))
[21] WANG G f，LI G，DOU L M，et al. Applicability of energy-absorbing support system for rockburst prevention in underground roadways[J]. International Journal of Rock Mechanics and Mining Sciences，2020，132：1 365–1 609.
[22] WANG G F，GONG S Y，DOU L M，et al. A novel experimental technique to simulate shock behaviour and bursting failure of roadways[J]. Shock and Vibration，2019，8：1–13.
[23] WU Y Z，HE S F，FU Y K，et al. Experimental study on the failure evolution of surrounding rock and the response of bolt support under multiple impact loads in mine roadways[J]. Rock Mechanics and Rock Engineering，2025，58(3)：3 779–3 797.
[24] 杨 磊，高富强，卢志国，等. 动载扰动巷道再现冲击地压模拟试验研究[J]. 采矿与岩层控制工程学报，2024，6(3)：57–66.(YANG Lei，GAO Fuqiang，LU Zhiguo，et al. Experimental rockburst simulation of roadway under dynamic disturbance[J]. Journal of Mining and Strata Control Engineering，2024，6(3)：57–66.(in Chinese))
[25] ZHU W C，LI Z H，ZHU L，et al. Numerical simulation on rockburst of underground opening triggered by dynamic disturbance[J]. Tunnelling and Underground Space Technology，2010，25：587–599.
[26] GAO F Q，KANG H P，LI J Z. Numerical simulation of fault-slip rockbursts using the distinct element method[J]. Tunnelling and Underground Space Technology，2021，110：1–12.
[27] DING L，ZHAO Y F，PAN Y S，et al. Investigation on acoustic emission characteristics of fault stick?slip under different lateral pressures[J]. Scientific reports，2024，14：6 718.
[28] DONG P，XIA K W，XU Y，et al. Laboratory earthquakes decipher control and stability of rupture speeds[J]. Nature Communications，2023，14：2 427.
[29] 娄金福，高富强，李建忠，等. 采场模型试验应力(压力)测量系统研制及应用[J]. 煤炭学报，2019，44(增1)：31–40.(LOU Jinfu，GAO Fuqiang，LI Jianzhong，et al. Research and application of stress (pressure) measurement system for physical modeling[J]. Journal of China Coal Society，2019，44(Supp.1)：31–40.(in Chinese))
[30] HUANG F，WU C Z，NI P P，et al. Experimental analysis of progressive failure behavior of rock tunnel with a fault zone using non-contact DIC technique[J]. International Journal of Rock Mechanics and Mining Sciences，2020，13：104355.
[31] LIU X Y，ZHANG C Q，XIAO H B，et al. Deformation and failure characteristics of a deeply buried tunnel subjected to creep slip fault movement：based on the engineering conditions of Yunnan water intake project[J]. Bulletin of Engineering Geology and the Environment，2022，81：322.
[32] CUI Z，LI J H，FU X W，et al. Evaluating the response of a tunnel subjected to strike?slip fault rupture in conjunction with model test and hybrid discrete–continuous numerical modeling[J]. Rock Mechanics and Rock Engineering，2022，55：4 743–4 764.
[33] XUE T E，ZHANG Q Y，ZHANG Z J，et al. Geo-mechanical model test on excavation and support of deep tunnel crossing a fault under hydro-mechanical coupled condition[J]. Acta Geotechnica，2024，19：2 063–2 082.
[34] 康红普，高富强，王晓卿，等. 煤矿巷道断层滑移型冲击地压试验系统研制与试验验证[J]. 煤炭学报，2024，49(9)：3 701–3 710. (KANG Hongpu，GAO Fuqiang，WANG Xiaoqing，et al. Development and experimental validation of a test system for simulation of fault-slip rockbursts in coal mine roadways[J]. Journal of China Coal Society，2024，49(9)：3 701–3 710.(in Chinese))
[35] 王学宁，康红普，高富强，等. 断层滑移诱发巷道冲击试验与模拟研究[J]. 煤炭学报，2025，50(8)：3 843–3 856.(WANG Xuening，KANG Hongpu，GAO Fuqiang，et al. Experimental and numerical study on fault-slip induced roadway rockburst[J]. Journal of China Coal Society，2025，50(8)：3 843–3 856.(in Chinese))
2026, Vol. 45 
