Investigation of the Temperature and Horizontal Freezing Force of Loess in Three-Dimensional Freezing DOI Open Access
Yidan Yin, Fei Liu, Dongqi Tang

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(18), P. 4614 - 4614

Published: Sept. 20, 2024

Seasonal frozen soil has significant impacts on changes in mechanical properties, settlement, and damage to foundations. In order study variations the temperature horizontal freezing force of loess during three-dimensional freezing, a model test was carried out. This experiment analyzed studied change distribution characteristics, rules, water migration phenomena caused by temperature. The research results show that samples exhibits “ring-like” decrease from outside inside. When reaches supercooling point, cooling curve jumps rises, this is accompanied stable section with constant late period, rate drops slowly. Under action forces at different positions have similar characteristics can be divided into four stages: stage, rapid “secondary” freezing–shrinkage–rebound stage. At lower moisture contents, undergo freeze–thaw shrinkage process. During stage samples, sample migrates causes secondary freezing. After continues decrease, no longer decreases.

Language: Английский

A thermal conductivity model for granular geomaterials with low porosity during the freezing process DOI
Jun Bi, Yuxuan Pan, Sheng Qiang Yang

et al.

International Journal of Heat and Mass Transfer, Journal Year: 2024, Volume and Issue: 233, P. 126050 - 126050

Published: Aug. 14, 2024

Language: Английский

Citations

6
Laboratory study on the frost-proof performance of a molecular vibration infrared Nano-thermoprobe (MVINT) embankment in seasonally frozen ground regions DOI

Zhijian Wu,

Guoxu Wang, Jun Bi

et al.

Cold Regions Science and Technology, Journal Year: 2024, Volume and Issue: 222, P. 104200 - 104200

Published: April 3, 2024

Language: Английский

Citations

5
Warming performance of a novel high-speed railway embankment in seasonally frozen ground regions DOI

Zhijian Wu,

Chengxin Chu,

Jun Bi

et al.

Construction and Building Materials, Journal Year: 2024, Volume and Issue: 426, P. 136145 - 136145

Published: April 12, 2024

Language: Английский

Citations

5
Predicting the volumetric heat capacity of freezing soils using the soil freezing characteristic curve DOI
Jun Bi, Yuxuan Pan, Sheng Qiang Yang

et al.

Journal of Hydrology, Journal Year: 2024, Volume and Issue: 645, P. 132151 - 132151

Published: Oct. 11, 2024

Language: Английский

Citations

5
Study on dynamic response characteristics of compacted loss slope under freeze-thaw cycles and earthquake loads DOI
Zhijian Wu, Jingjing Jing,

Yu Lu

et al.

Cold Regions Science and Technology, Journal Year: 2024, Volume and Issue: 220, P. 104137 - 104137

Published: Feb. 1, 2024

Language: Английский

Citations

4
Advances in Permafrost Representation: Biophysical Processes in Earth System Models and the Role of Offline Models DOI Creative Commons
Heidrun Matthes, Adrien Damseaux, Sebastian Westermann

et al.

Permafrost and Periglacial Processes, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

ABSTRACT Permafrost is undergoing rapid changes due to climate warming, potentially exposing a vast reservoir of carbon be released the atmosphere, causing positive feedback cycle. Despite importance this feedback, its specifics remain poorly constrained, because representing permafrost dynamics still poses significant challenge for Earth System Models (ESMs). This review assesses current state representation in land surface models (LSMs) used ESMs and offline models, highlighting both progress made remaining gaps. We identify several key physical processes crucial dynamics, including soil thermal regimes, freeze–thaw cycles, hydrology, which are underrepresented many models. While some LSMs have advanced significantly incorporating these processes, others lack fundamental elements such as latent heat freeze–thaw, deep columns, Arctic vegetation dynamics. Offline provide valuable insights, offering detailed process testing aiding prioritization improvements coupled LSMs. Our analysis reveals that while has been permafrost‐related into LSMs, small‐scale underrepresented. particularly important capturing complex interactions between biogeochemical required model recommend leveraging advancements from progressively integrating them recognizing computational technical challenges may arise simulations. highlight enhancing through resolution complexity, precursor accurately incorporate capture feedback.

Language: Английский

Citations

0
A matrix for estimating the unfrozen water content of freezing soils DOI
Jun Bi, Guoxu Wang,

Wenxuan Mu

et al.

CATENA, Journal Year: 2025, Volume and Issue: 256, P. 109050 - 109050

Published: May 2, 2025

Language: Английский

Citations

0
A new method to estimate the soil freezing characteristic curve DOI
Jun Bi,

Chaozheng Shen,

Guoxu Wang

et al.

Cold Regions Science and Technology, Journal Year: 2024, Volume and Issue: unknown, P. 104334 - 104334

Published: Sept. 1, 2024

Language: Английский

Citations

0
Investigation of the Temperature and Horizontal Freezing Force of Loess in Three-Dimensional Freezing DOI Open Access
Yidan Yin, Fei Liu, Dongqi Tang

et al.

Materials, Journal Year: 2024, Volume and Issue: 17(18), P. 4614 - 4614

Published: Sept. 20, 2024

Seasonal frozen soil has significant impacts on changes in mechanical properties, settlement, and damage to foundations. In order study variations the temperature horizontal freezing force of loess during three-dimensional freezing, a model test was carried out. This experiment analyzed studied change distribution characteristics, rules, water migration phenomena caused by temperature. The research results show that samples exhibits “ring-like” decrease from outside inside. When reaches supercooling point, cooling curve jumps rises, this is accompanied stable section with constant late period, rate drops slowly. Under action forces at different positions have similar characteristics can be divided into four stages: stage, rapid “secondary” freezing–shrinkage–rebound stage. At lower moisture contents, undergo freeze–thaw shrinkage process. During stage samples, sample migrates causes secondary freezing. After continues decrease, no longer decreases.

Language: Английский

Citations

0