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Numerical Simulation Study on Damage Law of Surrounding Rock in Blasting Excavation of Ultra-deep Shaft
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Xiao-lin YANG, Guang-ran ZHANG, Huai-bao CHU, Bo SUN, Jie XU, Dong-hui WANG, Lu-yang CHEN, Peng GUO, Shao-hua WANG
Blasting | 2024, 41(2) : 8 - 14
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Blasting | 2024, 41(2): 8-14
• THEORETICAL AND TECHNOLOGICAL EXPLORATION •
Numerical Simulation Study on Damage Law of Surrounding Rock in Blasting Excavation of Ultra-deep Shaft
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Xiao-lin YANG, Guang-ran ZHANG, Huai-bao CHU, Bo SUN, Jie XU, Dong-hui WANG, Lu-yang CHEN, Peng GUO, Shao-hua WANG
Affiliations
  • School of Civil Engineering, Henan Polytechnic University, Jiaozuo 451003, China
Published: 2024-06-01 doi: 10.3963/j.issn.1001-487X.2024.02.002
Outline
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This study aims to analyze the damage evolution law of the surrounding rock mass in an ultra-deep shaft under blasting load. To achieve this, a numerical simulation method is adopted based on the blasting construction practice of Xiling Auxiliary Shaft in Sanshandao Gold Mine. The simulation utilizes a restart technology based on ANSYS/LS-DYNA and adopts the equivalent explosion load method according to the blasting design scheme. The surrounding rock mass damage of the ultra-deep shaft is calculated under four different ground stresses (15 MPa, 30 MPa, 45 MPa, and 60 MPa) and four different side pressure coefficients (1.0, 1.25, 1.5, and 2.0). Furthermore, this study analyzes the damage effect on the shaft's surrounding rock mass and investigates how ground stress and side pressure coefficient influence the extent of damage to the surrounding rock. The numerical results demonstrate that as ground stress increases from 15 MPa to 60 MPa, there is a significant inhibition in the damage area with a decrease in radius from 5.75 m to 3.4 m. Additionally, it is observed that with an increase in lateral pressure coefficient, there is anisotropy in terms of blasting damage area distribution where greater ground stress leads to concentrated damage areas.

ultra-deep shaft  /  blasting excavation  /  damage law  /  numerical simulation  /  equivalent load
Xiao-lin YANG, Guang-ran ZHANG, Huai-bao CHU, Bo SUN, Jie XU, Dong-hui WANG, Lu-yang CHEN, Peng GUO, Shao-hua WANG. Numerical Simulation Study on Damage Law of Surrounding Rock in Blasting Excavation of Ultra-deep Shaft[J]. Blasting, 2024 , 41 (2) : 8 -14 . DOI: 10.3963/j.issn.1001-487X.2024.02.002
Funding
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  • National Natural Science Foundation of China
  • Basic Research on Continuous Intelligent and Safe Mining of Deep Metal Mines(52130403)
Appendix
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Year 2024 volume 41 Issue 2
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Article Info
doi: 10.3963/j.issn.1001-487X.2024.02.002
  • Receive Date：2024-01-02
  • Online Date：2026-03-20
  • Published：2024-06-01
Article Data
Affiliations
History
  • Received：2024-01-02
Funding
National Natural Science Foundation of China
Basic Research on Continuous Intelligent and Safe Mining of Deep Metal Mines(52130403)
Affiliations
    School of Civil Engineering, Henan Polytechnic University, Jiaozuo 451003, China

Corresponding:

CHU Huai-bao (1978-), male, Ph. D, professor, master supervisor, mainly engaged in research on explosion theory and application, (E-mail) .
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Citations
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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