Numerical Simulation of Blasting in Jointed Rock Mass and the Quantitative Statistics of Cracks

  • Wang Xuesong ,
  • Guo Lianjun ,
  • Zhang Jiuyang ,
  • Yan Dayang ,
  • Xu Zhenyang
Expand
  • 1. School of Architecture and Civil Engineering, Shenyang University of Technology, Shenyang 110870, P. R. China;
    2. Engineering Research Center of Green Mining of Metal Mineral Resources, Anshan, Liaoning 114051, P. R. China;
    3. Ansteel Mining Blasting Co., Ltd., Anshan, Liaoning 114051, P. R. China

Received date: 2025-03-27

  Online published: 2025-12-31

Abstract

In the process of blasting rock breaking, the existence of joints and fissures in rock mass affects the blasting crushing effect. Some finite element numerical simulation software can realize the blasting rock breaking simulation of jointed rock mass, while it is difficult to realize the quantitative description of cracks. A numerical model of jointed rock mass was established using LS-DYNA software to analyze the obstruction and reflection effects of joint surfaces on explosion stress waves. The images of blast-induced cracks were binarized, and crack extraction from the binary images was achieved using the Hough transform method. Statistical results of the crack images were subsequently analyzed through the maximum likelihood estimation method. The results show that: The existence of joints seriously hinders the propagation of blasting stress wave, and the peak stress is reduced by about 60%. The rock mass between blast hole and joint is subjected to stronger stress superposition due to reflection, and the crushing effect is more remarkable; In the initial stage of explosion, the occurrence probability of small cracks is large, and at the end, it is dominated by long cracks. In this process, many short cracks expand into long cracks, and the distribution of crack angles is relatively average. The distribution of long cracks with joint angles of 45° and 60° is more uniform, and the extreme value is not obvious. When the joints are 15° and 30°, the crack development in the vertical direction is obvious. The Hough transform method realizes the quantitative result statistics of crack images in the numerical simulation results.

Cite this article

Wang Xuesong , Guo Lianjun , Zhang Jiuyang , Yan Dayang , Xu Zhenyang . Numerical Simulation of Blasting in Jointed Rock Mass and the Quantitative Statistics of Cracks[J]. Chinese Journal of Underground Space and Engineering, 2025 , 21(6) : 2060 -2070 . DOI: 10.20174/j.JUSE.2025.06.22

References

[1] 刘晓辉,桂欣,余洁, 等.卸围压深埋大理岩扩容特征与裂纹演化规律[J].地下空间与工程学报, 2022, 18(6): 1922-1932.(Liu Xiaohui, Gui Xin,Yu Jie, et al.Dilatancy characteristics and crack evolution of deep-buried marble under unloading confining pressure[J].Chinese Journal of Underground Space and Engineering, 2022, 18(6): 1922-1932.(in Chinese))
[2] 凌同华,曹峰,李洁, 等.岩溶隧道富裂隙围岩的爆破力学特性分析[J].地下空间与工程学报, 2015, 11(增2): 810-816.(Ling Tonghua,Cao Feng,Li Jie,et al.Analysis on mechanical characteristics of fissure-rich surrounding rock blasting of karst tunnel[J].Chinese Journal of Underground Space and Engineering, 2015, 11(Supp.2): 810-816.(in Chinese))
[3] 杨建华,代金豪,姚池, 等.爆破开挖扰动下锚固节理岩质边坡位移突变特征与能量机理[J].爆炸与冲击, 2022, 42(3): 138-149.(Yang Jianhua, Dai Jinhao, Yao Chi, et al.Displacement mutation characteristics and energy mechanisms of anchored jointed rock slopes under blasting excavation disturbance[J].Explosion and Shock Waves, 2022, 42(3): 138-149.(in Chinese))
[4] 徐帮树,张万志,石伟航, 等.节理裂隙层状岩体隧道掘进爆破参数试验研究[J].中国矿业大学学报, 2019, 48(6): 1248-1255.(Xu Bangshu, Zhang Wanzhi, Shi Weihang, et al.Experimental study of parameters of tunneling blasting in jointed layered rock mass[J].Journal of China University of Mining & Technology, 2019, 48(6): 1248-1255.(in Chinese))
[5] 夏文俊,卢文波,陈明, 等.白鹤滩坝址柱状节理玄武岩爆破损伤质点峰值振速安全阈值研究[J].岩石力学与工程学报, 2019, 38(增1): 2997-3007.(Xia Wenjun, Lu Wenbo, Chen Ming, et al.Study on safety threshold of peak particle velocity about blasting damage of columnar jointed basalt rock mass in Baihetan Dam site[J].Chinese Journal of Rock Mechanics and Engineering,2019, 38(Supp.1): 2997-3007.(in Chinese))
[6] 胡刚,费鸿禄,包士杰, 等.基于HHT分析隧道围岩结构爆破累积损伤效应[J].地下空间与工程学报, 2020, 16(1): 249-259.(Hu Gang,Fei Honglu,Bao Shijie, et al.Blasting damage accumulative effect of tunnel surrounding rock structure on HHT[J].Chinese Journal of Underground Space and Engineering, 2020, 16(1): 249-259.(in Chinese))
[7] 梁瑞,吕亚茹,周文海, 等.地下采场爆破炮孔堵塞效应及长度研究[J].地下空间与工程学报, 2020, 16(5): 1546-1554.(Liang Rui,Lü Yaru,Zhou Wenhai, et al.Study on blockage effect and the stem length in underground stope blasting[J].Chinese Journal of Underground Space and Engineering, 2020, 16(5): 1546-1554.(in Chinese))
[8] 朱大鹏,阿布拉铁,许红波.爆破振动下大前石岭隧道岩堆围岩动力响应预测[J].地下空间与工程学报, 2021, 17(增2): 645-649.(Zhu Dapeng,Abu Latie,Xu Hongbo.Dynamic response prediction of surrounding rock pile under blasting vibration in daqianshiling tunnel[J].Chinese Journal of Underground Space and Engineering, 2021, 17(Supp.2): 645-649.(in Chinese))
[9] 荣凯,杨军,陈占扬.土介质挡墙对爆炸冲击波衰减规律研究[J].工程爆破, 2021, 27(6): 1-8.(Rong Kai, Yang Jun, Chen Zhanyang.Study on attenuation law of soil retaining wall to blast wave[J].Engineering Blasting, 2021, 27(6): 1-8.(in Chinese))
[10] Li X, Gao W, Guo L,et al.Influences of the number of non-consecutive joints on the dynamic mechanical properties and failure characteristics of a rock-like material[J].Engineering Failure Analysis, 2023, 146: 107101.
[11] 张嘉凡,高壮,程树范, 等.煤岩HJC模型参数确定及液态CO2爆破特性研究[J].岩石力学与工程学报, 2021, 40(增1): 2633-2642.(Zhang Jiafan, Gao Zhuang, Cheng Shufan, et al.(Parameters determination of coal-rock HJC model and research on blasting characteristics by liquid CO2[J].Chinese Journal of Rock Mechanics and Engineering, 2021, 40(Supp.1): 2633-2642.(in Chinese))
[12] 李秀虎.炸药与岩石合理匹配关系的模拟研究[D].鞍山:辽宁科技大学, 2018.(Li Xiuhu.Simulation study on rational matching relationship between explosives and rocks[D].Anshan: University of Science and Technology Liaoning, 2018.(in Chinese))
[13] 许海亮,任合欢,宋义敏.带裂纹花岗岩试件三点弯变形演化及破裂机制[J].地下空间与工程学报, 2022, 18(4): 1199-1207.(Xu Hailiang, Ren Hehuan, Song Yimin.Deformation evolution and failure mechanism of three-point bending granite specimen with cracks[J].Chinese Journal of Underground Space and Engineering, 2022, 18(4): 1199-1207.(in Chinese))
[14] 王军祥,曾相森,徐晨晖, 等.基于图像处理技术的岩体裂隙定量识别方法研究[J].地下空间与工程学报, 2022, 18(2): 446-457.(Wang Junxiang, Zeng Xiangsen, Xu Chenhui, et al.Study on quantitative identification method of rock fracture based on image processing technology[J].Chinese Journal of Underground Space and Engineering, 2022, 18(2): 446-457.(in Chinese))
[15] Hough P.Method and means for recognizing complex patterns[P].Patent:US19600017715, 1962-12-18.
[16] 崔岩,周鑫昌,刘亚飞, 等.基于Hough变换的太阳子午线提取方法[J].光学学报, 2020, 40(17): 14-20.(Cui Yan, Zhou Xinchang, Liu Yafei, et al.Solar meridian extraction method based on hough transformation[J].Acta Optica Sinica, 2020, 40(17): 14-20.(in Chinese))
[17] 覃若琳,蒋晓刚,金良安, 等.基于Hough变换的水中气泡群特征参数提取方法研究[J].兵工学报, 2019, 40(12): 2504-2512.(Qin Ruolin, Jiang Xiaogang, Jin Liang'an, et al.Study of characteristics extraction of underwater bubbles group based on hough transform[J].Acta Armamentarii, 2019, 40(12): 2504-2512.(in Chinese))
[18] 石峰源,郑循江,姜丽辉, 等.基于霍夫变换的空间非合作目标点云配准算法[J].北京航空航天大学学报, 2023,49 (8): 2071-2078.(Shi Fengyuan, Zheng Xunjiang, Jiang Lihui, et al.Point cloud registration algorithm for non-cooperative targets based on hough transform[J].Journal of Beijing University of Aeronautics and Astronautics, 2023,49 (8): 2071-2078.(in Chinese))
[19] Rizzo R E, Healy D, Heap M J, et al.Detecting the onset of strain localization using two‐dimensional wavelet analysis on sandstone deformed at different effective pressures[J].Journal of Geophysical Research: Solid Earth, 2018, 123(12): 410-460, 478.
[20] Rizzo R E, Healy D, Farrell N J,et al.Riding the right wavelet: Quantifying scale transitions in fractured rocks[J].Geophysical Research Letters, 2017, 44(23): 11808-11815.
[21] Rizzo R E, Healy D, De Siena L.Benefits of maximum likelihood estimators for fracture attribute analysis: Implications for permeability and up-scaling[J].Journal of Structural Geology, 2017, 95: 17-31.
[22] 周智,朱永生,张优云, 等.基于EMD间隔阈值消噪与极大似然估计的滚动轴承故障诊断方法[J].振动与冲击, 2013, 32(9): 155-159.(Zhou Zhi,Zhu Yongsheng,Zhang Youyun, et al.Fault diagnosis of rolling bearings based on EMD Interval-Threshold denoising and maximum likelihood estimation[J].Journal of Vibration and Shock, 2013, 32(9): 155-159.(in Chinese))
[23] 池招招,蒋军成,刁旭, 等.基于声波衰减模型对液体管道泄漏位置的极大似然估计[J].振动与冲击, 2021, 40(15): 238-245.(Chi Zhaozhao,Jiang Juncheng, Diao Xu, et al.Maximum likelihood estimation for leakage location of liquid pipeline based on acoustic attenuation model[J].Journal of Vibration and Shock, 2021, 40(15): 238-245.(in Chinese))
[24] 刘运毅,黎相成,黄约, 等.基于极大似然估计的工业机器人腕部6维力传感器在线标定[J].机器人, 2019, 41(2): 216-221.(Liu Yunyi,Li Xiangcheng,Huang Yue,et al.Online calibration for the 6-axis force sensor in the wrist of industrial robot based on maximum likelihood estimation[J].Robot, 2019, 41(2): 216-221.(in Chinese))
[25] 陈占扬.露天台阶爆破岩石破碎形态试验研究[D].北京理工大学, 2021.(Chen Zhanyang.Experimental study on rock broken morphology of open pit bench blasting[D].Beiijing: Beijing Institute of Technology, 2021.(in Chinese))
[26] 李桐,陈明,叶志伟, 等.不同耦合介质爆破爆炸能量传递效率研究[J].爆炸与冲击, 2021, 41(6): 4-14.(Li Tong, Chen Ming, Ye Zhiwei, et al.Study on the energy transfer efficiency of explosive blasting with different coupling medium[J].Explosion And Shock Waves, 2021, 41(6): 4-14.(in Chinese))
[27] Halquist J.LS-DYNA keyword user's manual version 971[M].Livermore Software Technology Corporation, Livermore, 2007.
[28] Yang J, Liu K W, Li X D, et al.Stress initialization methods for dynamic numerical simulation of rock mass with high in-situ stress[J].Journal of Central South University, 2020, 27(10): 3149-3162.
[29] Wan W, Yang J, Xu G, et al.Determination and evaluation of Holmquist-Johnson-Cook constitutive model parameters for ultra-high-performance concrete with steel fibers[J].International Journal of Impact Engineering, 2021, 156: 103966.
[30] Yang L, Yang S, Zhang Z, et al.Dynamic response of gradient double-corrugated sandwich plate subjected to underwater blast loads[J].Mechanics of Advanced Materials and Structures, 2021,30: 388-399.
[31] 李健钰.不同强度混凝土爆破漏斗形态实验研究[D].绵阳:西南科技大学, 2018.(Li Jianyu.Experimental study on the morphology of blasting funnel with different strength concrete[D].Mianyang: Southwest University of Science and Technology, 2018.(in Chinese))
[32] Healy D, Rizzo R E, Cornwell D G, et al.FracPaQ: A MATLABTM toolbox for the quantification of fracture patterns[J].Journal of Structural Geology, 2017, 95: 1-16.
[33] 侯运炳,张兴,李攀, 等.冻融循环对全尾砂固结体力学性能影响及无损检测研究[J].工程科学学报, 2019, 41(11): 1433-1443.(Hou Yunbing,Zhang Xing,Li Pan,et al.Mechanical properties and nondestructive testing of cemented mass of unclassified tailings under freeze-thaw cycles[J].Chinese Journal of Engineering, 2019, 41(11): 1433-1443.(in Chinese))
[34] 冷振东,范勇,卢文波, 等.孔内双点起爆条件下的爆炸能量传输与破岩效果分析[J].岩石力学与工程学报, 2019, 38(12): 2451-2462.(Leng Zhendong,Fan Yong,Lu Wenbo, et al.Explosion energy transmission and rock-breaking effect of in-hole dual initiation[J].Chinese Journal of Rock Mechanics and Engineering, 2019, 38(12): 2451-2462.(in Chinese))
[35] 魏晨慧,朱万成,白羽, 等.不同节理角度和地应力条件下岩石双孔爆破的数值模拟[J].力学学报, 2016, 48(4): 926-935.(Wei Chenhui, Zhu Wancheng, Bai Yu, et al.Numerical simulation on two-hole blasting of rock under different joint angles and in-situstress conditions[J].Chinese Journal of Theoretical and Applied Mechanics, 2016, 48(4): 926-935.(in Chinese))
Outlines

/