Advances in Soil Hydrology in Cold Regions

A special issue of Water (ISSN 2073-4441). This special issue belongs to the section "Hydrology".

Deadline for manuscript submissions: 20 January 2025 | Viewed by 746

Special Issue Editors

College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China
Interests: freeze-thaw cycle; soil salinization; irrigation; underground water; soil water and solute transport; SHAW model
College of Water Resource and Hydropower, Sichuan University, Chengdu 610065, China
Interests: groundwater; solute transport; colloid transport; groundwater pollu-tion; contaminant hydrology

Special Issue Information

Dear Colleagues,

The complexity of soil hydrological processes in cold regions presents a unique challenge for scientific inquiry and practical management. Changes in the climate, especially warming trends, have significant impacts on the hydrology of these sensitive areas, affecting not only local ecosystems but also water cycles and climate systems. This Special Issue aims to explore the latest advancements in the monitoring, understanding and modeling of soil hydrology in cold regions.

The primary focus of this Special Issue includes, but is not limited to, the following:

  • Provide new insights into the physical, chemical, and biological processes affecting soil water dynamics in cold regions.
  • Explore the impacts of climate change on soil moisture, permafrost thawing, snowmelt patterns, and the interaction between surface water and groundwater.
  • Enhance the understanding of the interactions between soil, water, and atmospheric conditions in cold environments.
  • Develop and evaluate new methodologies (e.g., remote sensing, isotopic techniques, and computational models) for studying soil hydrology in cold climates.
  • Explore the new mechanisms of groundwater flow, solute transport, colloidal particles, and pollutant transport in aquifers under climate change.

Dr. Xiao Tan
Dr. Bo Tan
Guest Editors

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Keywords

  • cold regions
  • soil hydrology
  • climate change
  • solute transport
  • groundwater hydrology
  • contaminant

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Published Papers (1 paper)

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Research

13 pages, 6366 KiB  
Article
A Quasi-Steady Model for Estimating the Rate of Frost Heave When Subjected to Overburden Pressure
by Lei Chen and Xiyan Zhang
Water 2024, 16(17), 2542; https://doi.org/10.3390/w16172542 - 8 Sep 2024
Viewed by 537
Abstract
The soil beneath buildings constructed in cold regions is affected by frost heave, causing the walls to crack and even the buildings to incline and collapse. Therefore, predicting the frost heave when subjected to overburden pressure is crucial for engineering buildings in cold [...] Read more.
The soil beneath buildings constructed in cold regions is affected by frost heave, causing the walls to crack and even the buildings to incline and collapse. Therefore, predicting the frost heave when subjected to overburden pressure is crucial for engineering buildings in cold areas. Utilizing the conservation equation of mass, Darcy’s equation, and the assumption that the pore water pressure at the top of a frozen fringe, denoted as uw, during the quasi-steady state can be approximately estimated using the Clapeyron equation, a quasi-steady frost heave rate model considering the overburden pressure was proposed. This study considered the difference in pore water pressure within the frozen fringe, which causes water to move from the unfrozen zone to the ice lens, where it subsequently accumulates and freezes into ice. The pore water pressure at the bottom of the frozen fringe, denoted as uu, can be estimated using the soil water characteristic curve (SWCC). The thickness of the frozen fringe was determined using the freezing temperature, segregation temperature, and temperature gradient. The segregation temperature was determined using the two-point method. Additionally, the model suggested that, when uw = uu, the movement of water stopped, leading to the end of frost heave. To validate the proposed model, three existing frost-heaving experiments were analyzed. The findings demonstrated that the estimated rates of frost heave of the samples closely matched the experimental data. Additionally, external pressure delayed water migration. This study can offer theoretical support for building engineering in cold regions. Full article
(This article belongs to the Special Issue Advances in Soil Hydrology in Cold Regions)
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