Abstract: As a typical unfavorable geological feature commonly encountered in tunnel construction, weak interlayers significantly affected the propagation characteristics of blasting-induced stress waves, thereby posing adverse impacts on construction safety and engineering quality. To accurately simulate blast stress wave propagation in tunnels containing weak interlayers, blasting-induced dynamic responses were modeled. A single-hole blasting numerical model was established using a continuous-discontinuous method—the Johnson-Holmquist-Beissel model within the four-dimensional lattice spring model(JHB-4D-LSM). The effects of blast-interlayer distance, interlayer thickness, and dip angles were investigated. Tunnel blasting stress wave propagation simulated by the JHB-4D-LSM model aligned well with prior LS-DYNA studies, validating the method's effectiveness. Localized stress concentration and increased peak stress were observed in the incident-wave-facing rock mass adjacent to the weak interlayer, while the peak stress decreased on the opposite side. This indicated the weak interlayer's dual role: enhancing stress on the incident-wave-facing side and attenuating stress on the transmission side. This effect intensified with greater interlayer thickness, showing a positive correlation. As the distance between the weak interlayer and the blast-hole decreased, stress concentration on the incident-wave-facing side became increasingly significant. When this distance exceeded 30 cm, the interlayer's influence on stress wave propagation was notably reduced. The dip angle's effect on stress wave propagation was governed primarily by the vertical distance between the blast-hole and the interlayer. Smaller vertical distances resulted in higher peak stresses, indicating a more pronounced stress wave impedance effect. This study provided valuable guidance for ensuring construction safety and offered a theoretical basis for optimizing blasting vibration control technology in tunnel engineering.
马建军,沈琨越,郑楠,黄伟真,肖海华. 基于JHB-4D-LSM的含软弱夹层隧道围岩爆破动力分析[J]. 隧道与地下工程灾害防治, 2025, 7(3): 47-57.
MA Jianjun, SHEN Kunyue, ZHENG Nan, HUANG Weizhen, XIAO Haihua. Blasting analysis of tunnel surrounding rock with weak interlayers based on JHB-4D-LSM. Hazard Control in Tunnelling and Underground Engineering, 2025, 7(3): 47-57.
[1] 贾帅龙, 王志亮, 熊峰, 等. 充填节理岩体中应力波传播特性研究[J]. 合肥工业大学学报(自然科学版), 2021, 44(8): 1073-1081. JIA Shuailong, WANG Zhiliang, XIONG Feng, et al. Study on propagation characteristics of stress wave in rockmass with filled joint[J]. Journal of Hefei University of Technology(Natural Science), 2021, 44(8): 1073-1081. [2] 皮锦添, 徐奴文, 张丰收, 等. 基于微震监测与DFN模拟的金川水电站尾闸室破坏机制[J]. 隧道与地下工程灾害防治,2024, 6(3): 60-72. PI Jintian, XU Nuwen, ZHANG Fengshou, et al. Failure mechanism of tailrace surge chamber in Jinchuan Hydropower Station based on microseismic monitoring and DFN simulation[J]. Hazard Control in Tunnelling and Underground Engineering, 2024, 6(3): 60-72. [3] 张腾, 刘连生, 刘昇, 等. 不同倾角充填结构面对爆破振动的演化特征与应力波反射规律研究[J]. 工程爆破, 2024, 30(6): 41-55. ZHANG Teng, LIU Liansheng, LIU Sheng, et al. Response characteristics and reflection law of blast stress wave propagation in filling structures with different inclination angles[J]. Engineering Blasting, 2024, 30(6): 41-55. [4] LIU X R, HAN Y F, LI D L, et al. Anti-pull mechanisms and weak interlayer parameter sensitivity analysis of tunnel-type anchorages in soft rock with underlying weak interlayers[J]. Engineering Geology, 2019, 253: 123-136. [5] 徐叶勤, 李梅, 姚俊伟, 等. 爆破荷载对含软弱夹层隧道围岩稳定性和变形破坏特征的影响[J]. 爆破, 2020, 37(2): 35-41. XU Yeqin, LI Mei, YAO Junwei, et al. Influence of blasting load on stability and deformation failure characteristics of tunnel surrounding rock mass with weak interlayer[J]. Blasting, 2020, 37(2): 35-41. [6] 刘迪, 吴立辉, 顾云, 等. 软弱夹层对岩石爆破裂纹扩展影响的研究[J]. 工程爆破, 2023, 29(4): 52-60. LIU Di, WU Lihui, GU Yun, et al. Study on the influence of weak interlayer on the crack propagation of rock blasting[J]. Engineering Blasting, 2023, 29(4): 52-60. [7] 杜鑫, 甯尤军, 杨军. 地下层状岩体爆破的DDA方法模拟研究[J]. 地下空间与工程学报, 2023, 19(3): 955-961. DU Xin, NING Youjun, YANG Jun. Simulation of underground layered rock blasting by the DDA method[J]. Chinese Journal of Underground Space and Engineering, 2023, 19(3): 955-961. [8] ZHANG Z H, GAO W L, LI K P, et al. Numerical simulation of rock mass blasting using particle flow code and particle expansion loading algorithm[J]. Simulation Modelling Practice and Theory, 2020, 104: 102119. [9] 孔祥振, 方秦. 基于SPH方法对强动载下混凝土结构损伤破坏的数值模拟研究[J]. 中国科学: 物理学 力学 天文学, 2020, 50(2): 25-33. KONG Xiangzhen, FANG Qin. Numerical predictions of failures in concrete structures subjected to intense dynamic loadings using the Smooth Particle Hydrodynamics method[J]. Scientia Sinica(Physica, Mechanica & Astrono-mica), 2020, 50(2): 25-33. [10] ZHAO G F. Developing a four-dimensional lattice spring model for mechanical responses of solids[J]. Computer Methods in Applied Mechanics and Engineering, 2017, 315: 881-895. [11] 赵高峰, 徐志超, 郝益民, 等. 基于4D-LSM的隧道围岩爆破振动和损伤判定研究[J]. 隧道与地下工程灾害防治, 2021, 3(3): 11-19. ZHAO Gaofeng, XU Zhichao, HAO Yimin, et al. Numerical modeling of vibration and damage of surrounding rock in tunnel blasting by using 4D-LSM[J]. Hazard Control in Tunnelling and Underground Engineering, 2021, 3(3): 11-19. [12] MA J J, CHEN J J, GUAN J W, et al. Implementation of Johnson-Holmquist-Beissel model in four-dimensional lattice spring model and its application in projectile penetration[J]. International Journal of Impact Engineering, 2022, 170: 104340. [13] MA J J, YIN P J, HUANG L C, et al. The application of distinct lattice spring model to zonal disintegration within deep rock masses[J]. Tunnelling and Underground Space Technology, 2019, 90: 144-161. [14] 马建军, 李诚豪, 关俊威, 等. 地铁隧道上方近距离爆炸动力响应研究[J]. 铁道科学与工程学报, 2023, 20(6): 2246-2255. MA Jianjun, LI Chenghao, GUAN Junwei, et al. Research on the dynamic response of close-range explosion above a subway tunnel[J]. Journal of Railway Science and Engineering, 2023, 20(6): 2246-2255. [15] LEI M F, HE R, LIU L H, et al. Mechanical mechanism and shaping effect of tunnel blasting construction in rock with weak interlayer[J]. Sustainability, 2022, 14(20): 13278. [16] JOHNSON G R, HOLMQUIST T J, BEISSEL S R. Response of aluminum nitride(including a phase change)to large strains, high strain rates, and high pressures[J]. Journal of Applied Physics, 2003, 94(3): 1639-1646.
2025, Vol. 7 
