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The Influence of Freeze-Thaw Cycles on the Mechanical Properties and Failure Characteristics of Red Sandstone with Different Saturation Levels
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Chaoyun YU1, Shenghui HUANG1, Xiangye WU2, 3, Yuhang TIAN2, 3, Junkun LI1
Mining Research and Development | 2025, 45(2) : 162 - 170
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Mining Research and Development | 2025, 45(2): 162-170
The Influence of Freeze-Thaw Cycles on the Mechanical Properties and Failure Characteristics of Red Sandstone with Different Saturation Levels
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Chaoyun YU1, Shenghui HUANG1, Xiangye WU2, 3, Yuhang TIAN2, 3, Junkun LI1
Affiliations
  • 1.School of Civil Engineering, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014017, China
  • 2.School of Mining and Coal, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014017, China
  • 3.Inner Mongolia Key Laboratory of Mining Engineering, Baotou, Inner Mongolia 014017, China
Published: 2025-02-25
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In extensive cold region engineering, freeze-thaw failure of rock masses is a natural disaster that can’t be ignored. In order to explore the influence of freeze-thaw environment on the engineering stability of rock masses in cold regions, uniaxial compression tests were conducted on red sandstone in cold regions under different freeze-thaw cycles (0, 10, 20, 30 times) and saturation levels (0, 20%, 40%, 60%, 80%, 100%), and SEM microstructure analysis was performed on the rock specimens. The results show that with the increase of freeze-thaw cycles and saturation, the crack closure stress σcc, initiation stress σci, damage stress σcd, peak stress σc, and frost resistance coefficient Kfm of red sandstone gradually decrease, and internal damage gradually intensifies. The failure mode of red sandstone specimens gradually changes from oblique shear failure and tensile failure to X-shaped failure, accompanied by a small amount of fragment peeled off. Recurrent freeze-thaw cycles leads to the expansion of original microcrack and the emergence of new cracks inside the rock, revealing the damage evolution characteristics of sandstone under different freeze-thaw cycles. The research results can provide a certain reference for the study of rock engineering stability and rock mechanics properties in cold regions.

Freeze-thaw cycle  /  Saturation  /  Mechanical property  /  Failure characteristics  /  Red sandstone
于超云, 黄生辉, 吴祥业, 田宇航, 李俊昆. 冻融循环对不同饱和度红砂岩力学特性和破坏特征的影响. 矿业研究与开发, 2025 , 45 (2) : 162 -170 .
Chaoyun YU, Shenghui HUANG, Xiangye WU, Yuhang TIAN, Junkun LI. The Influence of Freeze-Thaw Cycles on the Mechanical Properties and Failure Characteristics of Red Sandstone with Different Saturation Levels[J]. Mining Research and Development, 2025 , 45 (2) : 162 -170 .
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Year 2025 volume 45 Issue 2
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  • Receive Date：2024-03-23
  • Online Date：2026-10-29
  • Published：2025-02-25
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  • Received：2024-03-23
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Affiliations
    1.School of Civil Engineering, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014017, China
    2.School of Mining and Coal, Inner Mongolia University of Science & Technology, Baotou, Inner Mongolia 014017, China
    3.Inner Mongolia Key Laboratory of Mining Engineering, Baotou, Inner Mongolia 014017, 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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