Numerical study of the influence of moisture migration on the subgrade temperature field in cold regions and its negligible critical hydrothermal boundary conditions

IF 3.8 2区工程技术 Q1 ENGINEERING, CIVIL

Cold Regions Science and Technology Pub Date : 2025-09-27 DOI:10.1016/j.coldregions.2025.104708

Yuqin Zhao , Xiangtian Xu , Gaosheng Li , Yue Dang , Wei Wang

{"title":"Numerical study of the influence of moisture migration on the subgrade temperature field in cold regions and its negligible critical hydrothermal boundary conditions","authors":"Yuqin Zhao , Xiangtian Xu , Gaosheng Li , Yue Dang , Wei Wang","doi":"10.1016/j.coldregions.2025.104708","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, we developed a single-temperature field model and a hydrothermal coupling model under various hydrothermal boundary conditions to quantify the effect of moisture migration on the subgrade temperature field. The temperature distributions, temperature differences, and maximum freeze-thaw depth differences between the two models across different subgrade sections were compared. The comparison revealed that moisture migration significantly impacted the subgrade temperature field as the boundary moisture content increased and the boundary temperature decreased. In seasonally frozen regions, the effect of moisture migration was minimal. In particular, at a high boundary temperature, the two models exhibited temperature differences of less than 1 °C and maximum freeze-thaw depth differences of less than 0.22 m. In permafrost regions, the effect of moisture migration on the subgrade temperature field led to temperature differences exceeding 6 °C and maximum freeze-thaw depth differences exceeding 1.6 m. Thus, critical hydrothermal boundary conditions for model simplification in subgrade temperature field calculation in cold regions were identified and validated through an engineering case study. These critical conditions provide a simplified method for determining whether moisture migration should be considered in predicting the subgrade temperature field, making the theoretical model more efficient and applicable in practical engineering.</div></div>","PeriodicalId":10522,"journal":{"name":"Cold Regions Science and Technology","volume":"241 ","pages":"Article 104708"},"PeriodicalIF":3.8000,"publicationDate":"2025-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Cold Regions Science and Technology","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0165232X25002915","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CIVIL","Score":null,"Total":0}

引用次数: 0

Abstract

In this study, we developed a single-temperature field model and a hydrothermal coupling model under various hydrothermal boundary conditions to quantify the effect of moisture migration on the subgrade temperature field. The temperature distributions, temperature differences, and maximum freeze-thaw depth differences between the two models across different subgrade sections were compared. The comparison revealed that moisture migration significantly impacted the subgrade temperature field as the boundary moisture content increased and the boundary temperature decreased. In seasonally frozen regions, the effect of moisture migration was minimal. In particular, at a high boundary temperature, the two models exhibited temperature differences of less than 1 °C and maximum freeze-thaw depth differences of less than 0.22 m. In permafrost regions, the effect of moisture migration on the subgrade temperature field led to temperature differences exceeding 6 °C and maximum freeze-thaw depth differences exceeding 1.6 m. Thus, critical hydrothermal boundary conditions for model simplification in subgrade temperature field calculation in cold regions were identified and validated through an engineering case study. These critical conditions provide a simplified method for determining whether moisture migration should be considered in predicting the subgrade temperature field, making the theoretical model more efficient and applicable in practical engineering.

查看原文本刊更多论文

寒区水分迁移对路基温度场影响及其可忽略临界热液边界条件的数值研究

在本研究中，我们建立了单一温度场模型和不同热液边界条件下的热液耦合模型，量化了水分迁移对路基温度场的影响。比较了两种模型在不同路基断面上的温度分布、温差和最大冻融深度差。对比发现，随着边界含水率的增加和边界温度的降低，水分迁移对路基温度场的影响显著。在季节性冻结地区，水分迁移的影响最小。特别是在较高的边界温度下，两种模式的温差小于1℃，最大冻融深度差小于0.22 m。在多年冻土区，水分迁移对路基温度场的影响导致温差超过6℃，最大冻融深度差超过1.6 m。因此，通过工程实例研究，确定了寒冷地区路基温度场计算中模型简化的临界热液边界条件并进行了验证。这些临界条件为确定在预测路基温度场时是否考虑水分迁移提供了一种简化的方法，使理论模型在实际工程中更加有效和适用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文求助全文

来源期刊

Cold Regions Science and Technology 工程技术-地球科学综合

CiteScore

7.40

自引率

12.20%

发文量

209

审稿时长

4.9 months

期刊介绍： Cold Regions Science and Technology is an international journal dealing with the science and technical problems of cold environments in both the polar regions and more temperate locations. It includes fundamental aspects of cryospheric sciences which have applications for cold regions problems as well as engineering topics which relate to the cryosphere. Emphasis is given to applied science with broad coverage of the physical and mechanical aspects of ice (including glaciers and sea ice), snow and snow avalanches, ice-water systems, ice-bonded soils and permafrost. Relevant aspects of Earth science, materials science, offshore and river ice engineering are also of primary interest. These include icing of ships and structures as well as trafficability in cold environments. Technological advances for cold regions in research, development, and engineering practice are relevant to the journal. Theoretical papers must include a detailed discussion of the potential application of the theory to address cold regions problems. The journal serves a wide range of specialists, providing a medium for interdisciplinary communication and a convenient source of reference.