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Influence of In-situ Stress on Blasting Effects Under Different Constitutive Models
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Guanghong MIAO1, Xu ZHANG2, Weibo SUN1, Wenxiang SUN2
Mining and Metallurgical Engineering | 2025, 45(2) : 13 - 19
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Mining and Metallurgical Engineering | 2025, 45(2): 13-19
• MINING •
Influence of In-situ Stress on Blasting Effects Under Different Constitutive Models
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Guanghong MIAO1, Xu ZHANG2, Weibo SUN1, Wenxiang SUN2
Affiliations
  • 1.School of Mechanics and Optoelectronic Physics, Anhui University of Science and Technology, Huainan 232001, Anhui, China
  • 2.School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, Anhui, China
Published: 2025-04-01 doi: 10.3969/j.issn.0253-6099.2025.02.003
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Constitutive models of HJC and RHT for different in-situ stress conditions were established by adopting ANSYS/LS-DYNA software, and the effects of blasting on effective stress and rock damage in different constitutive models were analyzed comparatively. The results show that the effective stress variation in the HJC model is more consistent with practical scenarios, while the rock damage in the RHT model can better reflect practical conditions. In-situ stress has a minor impact on effective stress in regions close to blast holes but a significant influence on effective stress in areas farther away. Additionally, in-situ stress has a smaller effect on rock damage in the HJC model, but substantially affects the damage variables in the RHT model.

constitutive model  /  in-situ stress  /  blasting effect  /  numerical simulation  /  damage variable  /  effective stress  /  rock damage
Guanghong MIAO, Xu ZHANG, Weibo SUN, Wenxiang SUN. Influence of In-situ Stress on Blasting Effects Under Different Constitutive Models[J]. Mining and Metallurgical Engineering, 2025 , 45 (2) : 13 -19 . DOI: 10.3969/j.issn.0253-6099.2025.02.003
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Year 2025 volume 45 Issue 2
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.02.003
  • Receive Date：2024-10-22
  • Online Date：2026-03-19
  • Published：2025-04-01
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  • Received：2024-10-22
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Affiliations
    1.School of Mechanics and Optoelectronic Physics, Anhui University of Science and Technology, Huainan 232001, Anhui, China
    2.School of Civil Engineering and Architecture, Anhui University of Science and Technology, Huainan 232001, Anhui, China
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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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