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Energy Evolution and Damage Mechanism of Sandstone with Initial Damage Under Impact Loading
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Sheguang WANG1, 2, Weihua XIANG1, 2, Zheng WANG1, 2, Pengfei ZHAO1, 2, Zhiyi LIU3, 4, 5, Shuai GENG1, 2, Zhangheng GU1, 2, Lijie WANG1, 2
Mining and Metallurgical Engineering | 2025, 45(6) : 55 - 62
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Mining and Metallurgical Engineering | 2025, 45(6): 55-62
• MINING •
Energy Evolution and Damage Mechanism of Sandstone with Initial Damage Under Impact Loading
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Sheguang WANG1, 2, Weihua XIANG1, 2, Zheng WANG1, 2, Pengfei ZHAO1, 2, Zhiyi LIU3, 4, 5, Shuai GENG1, 2, Zhangheng GU1, 2, Lijie WANG1, 2
Affiliations
  • 1.Shahe Zhongguan Iron Mine Co., Ltd., Hebei Iron and Steel Group, Xingtai 054100, Hebei, China
  • 2.Hebei Technology Innovation Center for Low-Carbon, Intelligent and Efficient Mining of Complex Iron Ores, Xingtai 054100, Hebei, China
  • 3.College of Mining Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
  • 4.Collaborative Innovation Center of Green Development of Mineral Resources and Ecological Restoration, Tangshan 063210, Hebei, China
  • 5.Hebei Laboratory of Mining Development and Safety Technology, Tangshan 063210, Hebei, China
doi: 10.3969/j.issn.0253-6099.2025.06.009
Outline
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To investigate the dynamic damage characteristics and energy evolution of sandstone in aquatic environments after engineering disturbance and blasting vibration, a split Hopkinson pressure bar (SHPB) was used to test three groups of saturated and dried sandstone with different initial damages. A statistical damage constitutive model was established by introducing initial damage and degree of saturation, which was then used in combination with damage curves to analyze the whole-process damage mechanism of sandstone with initial damage. It is found that the stress-strain curve of sandstone can be divided into four parts based on energy evolution. After reaching peak stress, things change. Elastic energy begins to release and a significant energy hysteresis phenomenon occurs throughout the failure process. At the same strain rate, the degree of fragmentation gradually increases as the initial damage becomes greater and sandstone is more saturated. The theoretical stress-strain curve of the modified damage constitutive model is in better coincidence with the practical one, presenting the highest correlation coefficient (0.991). The mechanism for whole-process sandstone damage can be characterized by the established damage curves. Furthermore, the initial damage and saturation-induced damage of sandstone are equivalent to its load-induced damage to a certain extent.

deep mining  /  sandstone  /  energy evolution  /  Hopkinson bar  /  impact dynamics  /  damage mechanism  /  saturation degree  /  constitutive model
王社光, 向伟华, 王征, 赵鹏飞, 刘志义, 耿帅, 顾章恒, 王立杰. 冲击载荷下含初始损伤砂岩能量演化及损伤机理研究. 矿冶工程杂志, 2025 , 45 (6) : 55 -62 . DOI: 10.3969/j.issn.0253-6099.2025.06.009
Sheguang WANG, Weihua XIANG, Zheng WANG, Pengfei ZHAO, Zhiyi LIU, Shuai GENG, Zhangheng GU, Lijie WANG. Energy Evolution and Damage Mechanism of Sandstone with Initial Damage Under Impact Loading[J]. Mining and Metallurgical Engineering, 2025 , 45 (6) : 55 -62 . DOI: 10.3969/j.issn.0253-6099.2025.06.009
Appendix
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Year 2025 volume 45 Issue 6
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Article Info
doi: 10.3969/j.issn.0253-6099.2025.06.009
  • Receive Date：2025-05-30
  • Online Date：2026-10-08
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  • Received：2025-05-30
Funding
Affiliations
    1.Shahe Zhongguan Iron Mine Co., Ltd., Hebei Iron and Steel Group, Xingtai 054100, Hebei, China
    2.Hebei Technology Innovation Center for Low-Carbon, Intelligent and Efficient Mining of Complex Iron Ores, Xingtai 054100, Hebei, China
    3.College of Mining Engineering, North China University of Science and Technology, Tangshan 063210, Hebei, China
    4.Collaborative Innovation Center of Green Development of Mineral Resources and Ecological Restoration, Tangshan 063210, Hebei, China
    5.Hebei Laboratory of Mining Development and Safety Technology, Tangshan 063210, Hebei, 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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