Strain Evolution and Failure Mode of Straight Wall-Arch Cavern under Impact Load

  • Chang Suling ,
  • Wang Zaiquan ,
  • Cong Yu ,
  • Wang Xiaoshan ,
  • Chao Wenwen
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  • 1. School of Science, Qingdao University of Technology, Qingdao, Shandong 266033, P.R. China;
    2. The Civil Engineering Discipline, Qingdao University of Technology, Qingdao, Shandong 266033, P.R. China

Received date: 2024-09-12

  Online published: 2025-06-13

Abstract

In order to study the effect of impact load on straight-wall arch cavern and surrounding rock, large-scale steel fiber reinforced concrete specimens were prepared, and a self-developed pendulum impacting system with biaxial stresses was used to carry out impact tests. A super-dynamic information acquisition system was used to record the impact force and internal strain, and digital image correlation technology was used to characterize the surface strain field. 0.6 MPa stress was applied vertically, and the height of 2 000 kg pendulum was raised to 150 mm. The results show that: The shock wave with amplitude attenuation was a typical low-frequency shock wave. Four cracks appeared in the spandrel and foot of the straight wall arch specimen, and the cracks at the spandrel were connected by a circumferential crack on the vault of the cavern. The internal peak strain and plastic strain are mainly tensile strain, compressive strain distributed near the left foot of the tunnel. The peak strain was larger in the circumferential direction, smaller in the radial and axial direction. And the plastic strain in the left spandrel was the largest. And the vault was prone to plastic deformation which can not be recovered through peak or plastic strain, but the ratios of plastic strain to peak strain in the vault were all larger. DIC strain cloud map showed that within less than 200 μs, the four cracks of spinner and foot of the sample were formed and connected, and the vertical strain changed the most, the vertical strain concentration area was consistent with the fracture morphology, the horizontal strain concentration area mainly appeared at the spinner position, and the shear strain concentration area was mainly distributed at the bend of each crack.

Cite this article

Chang Suling , Wang Zaiquan , Cong Yu , Wang Xiaoshan , Chao Wenwen . Strain Evolution and Failure Mode of Straight Wall-Arch Cavern under Impact Load[J]. Chinese Journal of Underground Space and Engineering, 2025 , 21(3) : 977 -985 . DOI: 10.20174/j.JUSE.2025.03.26

References

[1] 黎立云, 徐志强, 谢和平, 等.不同冲击速度下岩石破坏能量规律的试验研究[J]. 煤炭学报,2011,36(12): 2007-2011. (Li Liyun, Xu Zhiqiang, Xie Heping, et al. Failure experimental study on energy laws of rock under differential dynamic impact velocities[J]. Journal of China Coal Society,2011,36(12): 2007-2011. (in Chinese))
[2] 宫凤强. 动静组合加载下岩石力学特性和动态强度准则的试验研究[D]. 长沙:中南大学,2010. (Gong Fengqiang. Experimental study of rock mechanical properties under coupled static-dynamic loads and dynamic strength criterion[D]. Changsha: Central South University,2010. (in Chinese))
[3] 李夕兵, 宫凤强, 高科, 等. 一维动静组合加载下岩石冲击破坏试验研究[J]. 岩石力学与工程学报,2010,29(2): 251-260. (Li Xibing, Gong Fengqiang, Gao Ke, et al. Test study of impact failure of rock subjected to one-dimensional coupled static and dynamic loads[J]. Chinese Journal of Rock Mechanics and Engineering,2010,29(2): 251-260. (in Chinese))
[4] 张智宇, 王建国, 黄永辉,等. 白云岩动力学特性及破坏模式试验研究[J]. 地下空间与工程学报,2018,14(5): 1195-1120. (Zhang Zhiyu, Wang Jianguo, Wang Yonghui, et al. Experimental analysis on dynamic characteristics and failure mode of deep dolomite based on high-speed photography[J]. Chinese Journal of Underground Space and Engineering,2018,14(5): 1195-1120. (in Chinese))
[5] 王泽东, 许金余, 吕晓聪,等. 围压作用下岩石冲击破坏与变形特性试验研究[J]. 地下空间与工程学报,2011,7(2): 311-334. (Wang Zedong, Xu Jinyu, Lv Xiaocong, et al. Research on characteristic of impact damage and distortion of rock under confining pressure[J]. Chinese Journal of Underground Space and Engineering,2011,7(2): 311-334. (in Chinese))
[6] 王磊, 朱哲明, 周磊, 等. 冲击载荷作用下圆孔缺陷对裂纹动态扩展行为的影响规律[J]. 爆炸与冲击,2021,41(8): 78-91. (Wang Lei, Zhu Zheming, Zhou Lei, et al. Influence of circular hole defect on dynamic crack propagation behavior under impact loads[J]. Explosion and Shock Waves,2021,41(8): 78-91. (in Chinese))
[7] 周子龙, 孙景楠, 王海泉, 等. 冲击载荷作用下孔洞花岗岩的应变演化及破坏特征[J]. 中南大学学报(自然科学版),2021,52(3): 681-692. (Zhou Zilong, Sun Jingnan, Wang Haiquan, et al. Strain evolution and failure characteristics of granite with cavities under impact load[J]. Journal of Central South University (Science and Technology),2021,52(3): 681-692. (in Chinese))
[8] 周磊, 朱哲明, 董玉清, 等. 冲击加载下隧道内裂纹的扩展特性及破坏行为[J]. 爆炸与冲击,2018,38(4): 785-794. (Zhou Lei, Zhu Zheming, Dong Yuqing, et al. Propagation characteristics and failure behavior of crack in tunnel and impact loads[J]. Explosion and Shock Waves,2018,38(4): 785-794. (in Chinese))
[9] 赵洪宝, 琚楠松, 王飞虎, 等. 单向约束条件下摆锤冲击对煤岩损伤的影响[J]. 岩石力学与工程学报,2018,37(增2): 4047-4055. (Zhao Hongbao, Ju Nansong, Wang Feihu, et al. Influence of pendulum impact on coal rock damage under unilateral constraints[J]. Chinese Journal of Rock Mechanics and Engineering,2018,37(Supp.2): 4047-4055. (in Chinese))
[10] 赵洪宝, 刘一洪, 张向阳, 等. 双向静载约束条件下动力冲击对煤岩的损伤影响[J]. 采矿与安全工程学报,2021,38(1): 130-137, 145. (Zhao Hongbao, Liu Yihong, Zhang Xiangyang, et al.The damage of dynamic impact on coal and rock under bidirectional static load constraint[J]. Journal of Mining & Safety Engineering,2021,38(1): 130-137, 145. (in Chinese))
[11] 赵洪宝, 吉东亮, 李金雨, 等. 单双向约束下冲击荷载对煤样渐进破坏的影响规律研究[J]. 岩石力学与工程学报,2021,40(1): 53-64. (Zhao Hongbao,Ji Dongliang, Li Jinyu, et al.Study on the effect of impact loads on progressive failure of coal samples under unilateral and biaxial constraints[J]. Chinese Journal of Rock Mechanics and Engineering,2021,40(1): 53-64. (in Chinese))
[12] 肖福坤, 王厚然, 张睿, 等. 不同冲击加载作用下砂岩的破碎特征[J]. 黑龙江科技大学学报,2018,28(6): 603-607.(Xiao Fukun,Wang Houran, Zhang rui, et al. Fracture characteristics underlying sandstones under different impact loading[J]. Journal of Heilongjiang University of Science & Technology,2018,28(6): 603-607. (in Chinese))
[13] 李少华, 朱万成, 牛雷雷, 等. 加载速率对砂岩破碎及能耗特征的影响[J]. 东北大学学报(自然科学版),2017,38(10): 1459-1463. (Li Shaohua,Zhu Wancheng, Niu Leilei, et al. Effect of loading rate on fragmentation and energy dissipation characteristics of sandstone[J]. Journal of Northeastern University(Natural Science),2017,38(10): 1459-1463. (in Chinese))
[14] 牛雷雷, 朱万成, 李少华, 等. 摆锤冲击加载下砂岩中应变率动力特性的试验研究[J]. 岩石力学与工程学报,2014,33(12): 2443-2450. (Niu Leilei, Zhu Wancheng, Li shaohua, et al. Experimental study of dynamic characteristics of sandstone under intermediate strain rate by using pendulum hammer driven “SHPB” apparatus[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(12): 2443-2450. (in Chinese))
[15] 何满潮, 刘冬桥, 宫伟力, 等. 冲击岩爆试验系统研发及试验[J]. 岩石力学与工程学报,2014,33(9): 1729-1739. (He Manchao, Liu Dongqiao, Gong Weili, et al. Development of a testing system for impact rockbursts[J]. Chinese Journal of Rock Mechanics and Engineering,2014,33(12): 2443-2450. (in Chinese))
[16] 王炀, 何满潮, 刘冬桥, 等. 深部椭圆形洞室围岩冲击岩爆试验研究[J]. 岩石力学与工程学报,2021,40(11): 2214-2228. (Wang Yang,He Manchao, Liu Dongqiao, et al. Experimental study on impact rockburst of surrounding rock in deep elliptical caverns[J]. Chinese Journal of Rock Mechanics and Engineering,2021,40(11): 2214-2228. (in Chinese))
[17] 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): 2347-2359. (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): 2347-2359. (in Chinese))
[18] Luo Y, Gong F Q, Liu D Q, et al. Experimental simulation analysis of the process and failure characteristics of spalling in D-shaped tunnels under true-triaxial loading conditions[J]. Tunnelling and Underground Space Technology, 2019, 90: 42-61.
[19] Huang L Q, Si X F, Li X B, et al. Influence of maximum principal stress direction on the failure process and characteristics of D-shaped tunnels[J]. International Journal of Mining Science and Technology,2022,32(5): 1125-1143.
[20] 宫凤强, 罗勇, 刘冬桥. 深部直墙拱形隧道围岩板裂破坏的模拟试验研究[J]. 岩土工程学报,2019,41(6): 1091-1100. (Gong Fengqiang, Luo Yong, Liu Dongqiao. Simulation tests on spalling failure in deep straight-wall-top-arch tunnels[J]. Chinese Journal of Geotechnical Engineering,2019,41(6): 1091-1100. (in Chinese))
[21] 徐景茂, 顾金才, 陈安敏,等. 爆炸平面波作用下大跨度洞室稳定性模型试验研究[J]. 岩土力学,2013,34(增1): 47-53, 59. (Xu Jingmao, Gu Jincai, Chen Anmin, et al. Model test study of stability of large span tunnel under explosive plane wave[J]. Rock and Soil Mechanics,2013,34(Supp.1): 47-53, 59. (in Chinese))
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