ArticleSensors (Basel, Switzerland)2021
A Freezing-Thawing Damage Characterization Method for Highway Subgrade in Seasonally Frozen Regions Based on Thermal-Hydraulic-Mechanical Coupling Model.
Article in Sensors (Basel, Switzerland), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Spatiotemporal Evolution and Drivers of Highway Surface Deformation Based on SBAS-InSAR and Geodetector.Sensors (Basel, Switzerland) · 2026Article
- Water and salt migration model of solidified sulfate-contaminated soil by full solid waste cementitious materials.PloS one · 2026Article
- A hydrothermal coupling model for permafrost subgrade considering temperature gradient and its application.Scientific reports · 2025Article
- Moisture Distribution and Ice Front Identification in Freezing Soil Using an Optimized Circular Capacitance Sensor.Sensors (Basel, Switzerland) · 2024Article
- Temperature Prediction of Seasonal Frozen Subgrades Based on CEEMDAN-LSTM Hybrid Model.Sensors (Basel, Switzerland) · 2022Article
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Authors and funding
6 authors.
Funding
Abstract
Seasonally frozen soil where uneven freeze-thaw damage is a major cause of highway deterioration has attracted increased attention in China with the rapid development of infrastructure projects. Based on Darcy's law of unsaturated soil seepage and heat conduction, the thermal-hydraulic-mechanical (THM) coupling model is established considering a variety of effects (i.e., ice-water phase transition, convective heat transfer, and ice blocking effect), and then the numerical solution of thermal-hydraulic fields of subgrade can be obtained. Then, a new concept, namely degree of freeze-thaw damage, is proposed by using the standard deviation of the ice content of subgrade during the annual freeze-thaw cycle. To analyze the freeze-thaw characteristics of highway subgrade, the model is applied in the monitored section of the Golmud to Nagqu portion of China National Highway G109. The results show that: (1) The hydrothermal field of subgrade has an obvious sunny-shady slopes effect, and its transverse distribution is not symmetrical; (2) the freeze-thaw damage area of subgrade obviously decreased under the insulation board measure; (3) under the combined anti-frost measures, the maximum frost heave amount of subgrade is significantly reduced. This study will provide references for the design of highway subgrades in seasonally frozen soil areas.
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