Experimental and Numerical Analysis of Freeze–Thaw-Induced Mechanical Degradation in the Coarse-Grained Soil of the Southeastern Qinghai–Xizang Plateau DOI Creative Commons
Huan Niu, Peiqing Wang, Liang Chen

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(9), P. 4900 - 4900

Published: April 28, 2025

To investigate the effects of freeze–thaw (FT) cycles on mechanical properties coarse-grained soil in southeastern Xizang under different moisture contents, this study focuses from a large landslide deposit Linzhi City, Xizang. FT cycle tests, triaxial shear and numerical simulations were employed to systematically examine comprehensive impact varying cycles, content, confining pressure soil’s characteristics. The results show that significantly affect stress–strain behavior degree strain softening increased approximately 11.6% initially 31.2% after 15 with strength decreasing by an average 31.8%. Specifically, cohesion decreased 38% 55% 0 internal friction angle 29% 32%. Additionally, higher content led more pronounced degradation, while effectively mitigated these deteriorative effects. Numerical simulation indicated as 7.6% 11.6%, number required reach critical instability state 150 106, finally only 15, maximum equivalent plastic increasing 0.20 2.47. findings provide key parameters for understanding formation evolution disasters lay scientific foundation assessment long-term prevention cold-region geological hazards.

Language: Английский

Shear behavior of saline soil-geotextile interfaces under freeze-thaw cycles DOI
Junli Gao, Like Pan, Feiyu Liu

et al.

Geotextiles and Geomembranes, Journal Year: 2025, Volume and Issue: 53(4), P. 867 - 881

Published: March 10, 2025

Language: Английский

Citations

0
Assessing shear strength degradation of gravel-bearing soil from Northeast Forest Region, China, under freeze–thaw action DOI
Yuan Zhou, Mohamed A. Shahin, Can Xu

et al.

Bulletin of Engineering Geology and the Environment, Journal Year: 2025, Volume and Issue: 84(5)

Published: April 17, 2025

Language: Английский

Citations

0
Experimental and Numerical Analysis of Freeze–Thaw-Induced Mechanical Degradation in the Coarse-Grained Soil of the Southeastern Qinghai–Xizang Plateau DOI Creative Commons
Huan Niu, Peiqing Wang, Liang Chen

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(9), P. 4900 - 4900

Published: April 28, 2025

To investigate the effects of freeze–thaw (FT) cycles on mechanical properties coarse-grained soil in southeastern Xizang under different moisture contents, this study focuses from a large landslide deposit Linzhi City, Xizang. FT cycle tests, triaxial shear and numerical simulations were employed to systematically examine comprehensive impact varying cycles, content, confining pressure soil’s characteristics. The results show that significantly affect stress–strain behavior degree strain softening increased approximately 11.6% initially 31.2% after 15 with strength decreasing by an average 31.8%. Specifically, cohesion decreased 38% 55% 0 internal friction angle 29% 32%. Additionally, higher content led more pronounced degradation, while effectively mitigated these deteriorative effects. Numerical simulation indicated as 7.6% 11.6%, number required reach critical instability state 150 106, finally only 15, maximum equivalent plastic increasing 0.20 2.47. findings provide key parameters for understanding formation evolution disasters lay scientific foundation assessment long-term prevention cold-region geological hazards.

Language: Английский

Citations

0