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Refined Numerical Model Construction and Blasting Simulation of Fractured Rock Mass
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Hai-wang YE1, Wen-peng WEI1, Han-hong ZHOU2, Meng-hao YU1, Xing-wang LI1, Tao LEI1, Ying WEN1, Qi-zhou WANG1, Bin-hong SHI3, Yan YU3, Sheng ZHANG3, Chuan-shan ZHONG3, Yu-wen GAO4, Abdou Mohamed Abdelkader HASSAN1
Blasting | 2023, 40(4) : 44 - 51
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Blasting | 2023, 40(4): 44-51
• THEORETICAL AND TECHNOLOGICAL EXPLORATION •
Refined Numerical Model Construction and Blasting Simulation of Fractured Rock Mass
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Hai-wang YE1, Wen-peng WEI1, Han-hong ZHOU2, Meng-hao YU1, Xing-wang LI1, Tao LEI1, Ying WEN1, Qi-zhou WANG1, Bin-hong SHI3, Yan YU3, Sheng ZHANG3, Chuan-shan ZHONG3, Yu-wen GAO4, Abdou Mohamed Abdelkader HASSAN1
Affiliations
  • 1.School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan 430070, China
  • 2.Security Administration of Wuhan Public Security Bureau, Wuhan 430077, China
  • 3.Huaxin Cement Co., Ltd., Wuhan 430200, China
  • 4.Minmetals Exploration and Development Co., Ltd., Beijing 100044, China
Published: 2023-12-01 doi: 10.3963/j.issn.1001-487X.2023.04.006
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The authenticity of fracture distribution model is one of the key factors during numerical simulation of blasting in jointed rock mass, which would obviously affect the numerical simulation results. It is hard to represent the complex three-dimensional joint distribution in the existing joint construction method. To explore a simple and feasible operation method for constructing the complex 3D joint model in LS-DYNA software, a K file of blasting numerical model was analyzed and reorganized by MATLAB software. Furthermore, a 3D refined numerical model for jointed rock mass was constructed by the 3D joint distribution law and the constitutive joint model parameters. Finally, a statistical analysis of the three-dimensional joint distribution law was carried out in an open-pit limestone mine, and the joints were reconstructed in the numerical model of a bench blasting. Consequently, a comparative study of the numerical simulation and the field blasting test for open-pit bench blasting was carried out. The results show that the error between the joints built in the numerical model and the actual joints is less than 13%. The joint surface changes the damage distribution of the rock mass. Compared with the intact rock mass, the damage rock mass range increases by 12.04%, and the proportion of fragments with the size of 0~100 mm decreases by 8.11%. The damage results obtained by blasting simulation are close to the field rock breaking effect, and the percentage error of fragments with the size of 0~100 mm is 4.16%. The analytical reconstruction method is feasible and easy to represent the complex three-dimensional joint distribution, and the numerical results are close to experimental results.

jointed rock mass  /  joint distribution law  /  geological model  /  LS-DYNA  /  blasting simulation  /  blasting test
Hai-wang YE, Wen-peng WEI, Han-hong ZHOU, Meng-hao YU, Xing-wang LI, Tao LEI, Ying WEN, Qi-zhou WANG, Bin-hong SHI, Yan YU, Sheng ZHANG, Chuan-shan ZHONG, Yu-wen GAO, Abdou Mohamed Abdelkader HASSAN. Refined Numerical Model Construction and Blasting Simulation of Fractured Rock Mass[J]. Blasting, 2023 , 40 (4) : 44 -51 . DOI: 10.3963/j.issn.1001-487X.2023.04.006
Funding
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  • National Key Research and Development Program(2020YFC1909602; 2021YFC2902901)
  • Key R&D Program of Hubei Province(2021BCA152)
Appendix
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Year 2023 volume 40 Issue 4
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Article Info
doi: 10.3963/j.issn.1001-487X.2023.04.006
  • Receive Date：2022-11-24
  • Online Date：2026-03-19
  • Published：2023-12-01
Article Data
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History
  • Received：2022-11-24
Funding
National Key Research and Development Program(2020YFC1909602; 2021YFC2902901)
Key R&D Program of Hubei Province(2021BCA152)
Affiliations
    1.School of Resources and Environment Engineering, Wuhan University of Technology, Wuhan 430070, China
    2.Security Administration of Wuhan Public Security Bureau, Wuhan 430077, China
    3.Huaxin Cement Co., Ltd., Wuhan 430200, China
    4.Minmetals Exploration and Development Co., Ltd., Beijing 100044, China

Corresponding:

LEI Tao (1983-), male, lecturer, Ph. D, mainly engaged in teaching and scientific research in mining, safety and numerical mining, (E-mail) .
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https://castjournals.cast.org.cn/joweb/bp/EN/10.3963/j.issn.1001-487X.2023.04.006
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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