Effects of Salt Content and Freeze-Thaw Conditions on Dynamic characteristics and its microscopic mechanism of Chloride Silty Clay DOI
Yaqin Zhang, Ping Yang, Lin Li

et al.

Cold Regions Science and Technology, Journal Year: 2024, Volume and Issue: 224, P. 104246 - 104246

Published: June 1, 2024

Language: Английский

Deformation Study of Strongly Structured Clays Considering Damage Effects DOI Creative Commons

Yansong Shi,

Bin Tang, Yang Wang

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(6), P. 2969 - 2969

Published: March 10, 2025

Settlement values calculated per the current “Code for Design of Building Foundations” demonstrate significant discrepancies when compared to actual measured settlement observed after disturbing a strong, cohesive soil foundation. This inconsistency introduces uncertainties in engineering design. To investigate deformation behavior highly structured clay, which is particularly sensitive disturbances, this study employed shaking table subject undisturbed samples various disturbance levels. The frequencies were set at 20 Hz, 35 and 50 with durations 30, 60, 90, 120 min. One-dimensional compression tests performed examine relationship between parameters overburden pressure, alongside an analysis process pore structure damage clay. A fitting using Origin software was utilized develop modulus calculation model that accounted effects, aiming enhance accuracy foundation predictions. results indicate proposed empirical formula reliable, essential improving precision calculations ensuring safety.

Language: Английский

Citations

0
Unstable permafrost regions experience more severe heatwaves in a warming climate DOI Creative Commons
Xiangfei Li, Lin Zhao, Shuo Wang

et al.

npj Climate and Atmospheric Science, Journal Year: 2025, Volume and Issue: 8(1)

Published: April 17, 2025

Language: Английский

Citations

0
Experimental Investigation of Mechanical Properties and Pore Characteristics of Hipparion Laterite Under Freeze–Thaw Cycles DOI Creative Commons

Tanushree Pan,

Zhou Zhao, Jianquan Ma

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(9), P. 5202 - 5202

Published: May 7, 2025

The Loess Plateau region of China has an anomalous climate and frequent geological disasters. Hipparion laterite in seasonally frozen regions exhibits heightened susceptibility to freeze–thaw (F-T) cycling, which induces progressive structural weakening significantly elevates the risk slope instability through mechanisms including pore water phase transitions, aggregate disintegration, shear strength degradation. This study focuses on slip zone from Nao panliang landslide Fugu County, Shaanxi Province. We innovatively integrated F-T cycling tests with ring-shear experiments establish a hydro-thermal–mechanical coupled multi-scale evaluation framework for assessing damage material. microstructural evolution soil architecture characteristics was systematically analyzed scanning electron microscopy (SEM) tests. Quantitative characterization mechanical degradation achieved using advanced parameters orientation frequency, probabilistic entropy, fractal dimensions, revealing intrinsic relationship between network anisotropy macroscopic deterioration. experimental results demonstrate that specimens undergo deterioration increasing cycles initial moisture content, predominantly exhibiting brittle deformation patterns. exhibited substantial degradation, total reduction rates 51.54% 43.67% peak residual strengths, respectively. stress–displacement curves transitioned strain-softening strain-hardening behavior, indicating plastic deformation-dominated damage. Moisture content critically regulates microstructure evolution, reducing micropore proportion 23.57–28.62% while promoting transformation mesopores macropores. At 24% areal porosity, dimension increased by 0.2263, 0.0401, 0.0589, Temperature-induced transitions amplified variability cyclic accumulation. These findings advance theoretical understanding laterite’s engineering behavior providing critical insights stability assessment mitigation strategies loess plateau regions.

Language: Английский

Citations

0
Quantification and division of unfrozen water content of frozen soils during freezing and the influence of freeze-thaw cycles DOI
Ran An, Haodong Gao, Chang Chen

et al.

Bulletin of Engineering Geology and the Environment, Journal Year: 2024, Volume and Issue: 83(11)

Published: Oct. 14, 2024

Language: Английский

Citations

2
Study on the mitigation effect and mechanism of solar heating subgrade system on frost heave of railway subgrade in cold regions DOI
Wenqiang Zhang, Dan Wang,

Lei Guo

et al.

Renewable Energy, Journal Year: 2024, Volume and Issue: 237, P. 121909 - 121909

Published: Nov. 14, 2024

Language: Английский

Citations

2
Experimental Study on the Mechanical Behavior of Frozen Soil Reinforced with Disposable Face Masks DOI
Jianpeng Liu, Shuang Cao, Feifan Liu

et al.

Journal of Cold Regions Engineering, Journal Year: 2024, Volume and Issue: 38(4)

Published: Sept. 26, 2024

Language: Английский

Citations

1
Enhancement of Resilient Modulus and Strength of Expansive Clay Stabilized by Wool and Agricultural Waste DOI

Zainab Farooq,

Ayesha Zubair,

Khalid Farooq

et al.

Arabian Journal for Science and Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 18, 2024

Language: Английский

Citations

1
Effects of Salt Content and Freeze-Thaw Conditions on Dynamic characteristics and its microscopic mechanism of Chloride Silty Clay DOI
Yaqin Zhang, Ping Yang, Lin Li

et al.

Cold Regions Science and Technology, Journal Year: 2024, Volume and Issue: 224, P. 104246 - 104246

Published: June 1, 2024

Language: Английский

Citations

0