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Study on the Key Influencing Factors of the Mechanical Behavior of Tailings Materials Under Freeze-Thaw Cycles
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Hao LIU1, Gang HUANG1, Ji ZHANG2, Tijun YIN2, Yunqin YANG1, Chaofan YANG1, Jing CHEN3
Mining Research and Development | 2025, 45(4) : 39 - 45
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Mining Research and Development | 2025, 45(4): 39-45
Study on the Key Influencing Factors of the Mechanical Behavior of Tailings Materials Under Freeze-Thaw Cycles
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Hao LIU1, Gang HUANG1, Ji ZHANG2, Tijun YIN2, Yunqin YANG1, Chaofan YANG1, Jing CHEN3
Affiliations
  • 1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China
  • 2.Anhui Masteel Mining Resources Group Gushan Mining Co., Ltd., Maanshan, Anhui 243000, China
  • 3.School of Innovation and Entrepreneurship, Hubei University of Technology, Wuhan, Hubei 430068, China
Published: 2025-04-25
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The evolution law of mechanical properties of tailings materials under freeze-thaw cycles is explored to provide a theoretical basis for the safety and stability evaluation of tailings dams. The tailings samples with different water contents were subjected to 1, 3, 5, 7, 9 freeze-thaw tests, and triaxial shear tests were performed under confining pressure conditions of 100 kPa to 400 kPa. The test results show that with the increase of the number of freeze-thaw cycles, the macroscopic structural deformation of the tailings increases significantly. Especially when the water content is 15%, after 7 freeze-thaw cycles, the pore structure of the tailings changes significantly, and the number of pores at the volume level of 0 − 250 μm3 increases significantly. In addition, it is found that increasing confining pressure can improve the elastic modulus of tailings and inhibit the damage of tailings caused by freeze-thaw cycles. The deformation modulus of the tailings tends to be stable after 5 freeze-thaw cycles, while the tailings samples with high water content show lower cohesion, internal friction angle and deformation modulus.

Tailings  /  Freeze-thaw cycle  /  Triaxial shear  /  Mechanical parameter
刘昊, 黄刚, 张骥, 印提军, 杨云钦, 杨超凡, 陈静. 冻融循环条件下尾矿材料力学行为的关键影响因素研究. 矿业研究与开发, 2025 , 45 (4) : 39 -45 .
Hao LIU, Gang HUANG, Ji ZHANG, Tijun YIN, Yunqin YANG, Chaofan YANG, Jing CHEN. Study on the Key Influencing Factors of the Mechanical Behavior of Tailings Materials Under Freeze-Thaw Cycles[J]. Mining Research and Development, 2025 , 45 (4) : 39 -45 .
Appendix
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Year 2025 volume 45 Issue 4
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Article Info
  • Receive Date：2024-04-19
  • Online Date：2026-10-30
  • Published：2025-04-25
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  • Received：2024-04-19
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Affiliations
    1.School of Resources and Environmental Engineering, Wuhan University of Technology, Wuhan, Hubei 430070, China
    2.Anhui Masteel Mining Resources Group Gushan Mining Co., Ltd., Maanshan, Anhui 243000, China
    3.School of Innovation and Entrepreneurship, Hubei University of Technology, Wuhan, Hubei 430068, 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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