Investigation of damage characteristics in freeze-thawed grey-white sandstone using AE multifractal analysis
Abstract The freeze–thaw (F-T) process in high-altitude rocks is a critical factor influencing the stability of engineering structures in such environments. Grey-white sandstone, fully saturated with water, was subjected to repeated F-T cycles to investigate its behavior under uniaxial compression....
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| Format: | Article |
| Language: | English |
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Springer
2025-07-01
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| Series: | Geomechanics and Geophysics for Geo-Energy and Geo-Resources |
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| Online Access: | https://doi.org/10.1007/s40948-025-01023-4 |
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| _version_ | 1849234475021500416 |
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| author | Xinlei Zhang Xiaoli Liu Jiaxu Jin Haibo Wang Zhiqiang Lv Yong Xiao |
| author_facet | Xinlei Zhang Xiaoli Liu Jiaxu Jin Haibo Wang Zhiqiang Lv Yong Xiao |
| author_sort | Xinlei Zhang |
| collection | DOAJ |
| description | Abstract The freeze–thaw (F-T) process in high-altitude rocks is a critical factor influencing the stability of engineering structures in such environments. Grey-white sandstone, fully saturated with water, was subjected to repeated F-T cycles to investigate its behavior under uniaxial compression. Acoustic emission (AE) tests were conducted following these cycles, and multifractal theory was applied to evaluate the impact of F-T cycles on the rock's macroscopic mechanical properties, AE characteristics, three-dimensional AE localization distribution, and multifractal behavior. Results indicate that as the number of F-T cycles increases, the compressive strength and loading duration of the sandstone decrease significantly. This reduction is accompanied by an earlier onset of fluctuations in the ringing count rate and an upward trend in the dynamic b-value curve. Additionally, the fracture mode shifts from shear-dominated to tension-dominated failure. A close correlation was observed between the spatial distribution of AE localization points and the macroscopic cracking patterns. The sudden increase in Δα and the sudden drop in Δf(α) in multifractal parameters can serve as precursors for the instability warning of freeze-thawed rocks. As the number of F-T cycles increases, the width of the multifractal spectrum Δα increases, Δf(α) decreases, and the sudden increase in Δα and the sudden drop in Δf(α) in the time-varying dynamic curves of multifractal parameters occur earlier. This study provides important theoretical support and technical reference for damage monitoring and stability assessment in geotechnical engineering in cold regions. |
| format | Article |
| id | doaj-art-abe31aaee4e24b9984ba7f076a48d8a2 |
| institution | Kabale University |
| issn | 2363-8419 2363-8427 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Springer |
| record_format | Article |
| series | Geomechanics and Geophysics for Geo-Energy and Geo-Resources |
| spelling | doaj-art-abe31aaee4e24b9984ba7f076a48d8a22025-08-20T04:03:07ZengSpringerGeomechanics and Geophysics for Geo-Energy and Geo-Resources2363-84192363-84272025-07-0111111910.1007/s40948-025-01023-4Investigation of damage characteristics in freeze-thawed grey-white sandstone using AE multifractal analysisXinlei Zhang0Xiaoli Liu1Jiaxu Jin2Haibo Wang3Zhiqiang Lv4Yong Xiao5School of Civil Engineering, Liaoning Technical UniversityState Key Laboratory of Hydroscience and Engineering, Tsinghua UniversitySchool of Civil Engineering, Liaoning Technical UniversityAnhui Key Laboratory of Mining Construction Engineering, Anhui University of Science and TechnologySchool of Civil Engineering, Liaoning Technical UniversitySchool of Civil Engineering, Liaoning Technical UniversityAbstract The freeze–thaw (F-T) process in high-altitude rocks is a critical factor influencing the stability of engineering structures in such environments. Grey-white sandstone, fully saturated with water, was subjected to repeated F-T cycles to investigate its behavior under uniaxial compression. Acoustic emission (AE) tests were conducted following these cycles, and multifractal theory was applied to evaluate the impact of F-T cycles on the rock's macroscopic mechanical properties, AE characteristics, three-dimensional AE localization distribution, and multifractal behavior. Results indicate that as the number of F-T cycles increases, the compressive strength and loading duration of the sandstone decrease significantly. This reduction is accompanied by an earlier onset of fluctuations in the ringing count rate and an upward trend in the dynamic b-value curve. Additionally, the fracture mode shifts from shear-dominated to tension-dominated failure. A close correlation was observed between the spatial distribution of AE localization points and the macroscopic cracking patterns. The sudden increase in Δα and the sudden drop in Δf(α) in multifractal parameters can serve as precursors for the instability warning of freeze-thawed rocks. As the number of F-T cycles increases, the width of the multifractal spectrum Δα increases, Δf(α) decreases, and the sudden increase in Δα and the sudden drop in Δf(α) in the time-varying dynamic curves of multifractal parameters occur earlier. This study provides important theoretical support and technical reference for damage monitoring and stability assessment in geotechnical engineering in cold regions.https://doi.org/10.1007/s40948-025-01023-4Freeze–thaw cycleAcoustic emissionCrack propagationMultifractal |
| spellingShingle | Xinlei Zhang Xiaoli Liu Jiaxu Jin Haibo Wang Zhiqiang Lv Yong Xiao Investigation of damage characteristics in freeze-thawed grey-white sandstone using AE multifractal analysis Geomechanics and Geophysics for Geo-Energy and Geo-Resources Freeze–thaw cycle Acoustic emission Crack propagation Multifractal |
| title | Investigation of damage characteristics in freeze-thawed grey-white sandstone using AE multifractal analysis |
| title_full | Investigation of damage characteristics in freeze-thawed grey-white sandstone using AE multifractal analysis |
| title_fullStr | Investigation of damage characteristics in freeze-thawed grey-white sandstone using AE multifractal analysis |
| title_full_unstemmed | Investigation of damage characteristics in freeze-thawed grey-white sandstone using AE multifractal analysis |
| title_short | Investigation of damage characteristics in freeze-thawed grey-white sandstone using AE multifractal analysis |
| title_sort | investigation of damage characteristics in freeze thawed grey white sandstone using ae multifractal analysis |
| topic | Freeze–thaw cycle Acoustic emission Crack propagation Multifractal |
| url | https://doi.org/10.1007/s40948-025-01023-4 |
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