冻土冻融过程研究综述
A Review of Research on Freeze-Thaw Process of Frozen Soil
DOI: 10.12677/hjce.2025.147185, PDF,   
作者: 张 敏*, 黄镇斌:西京学院土木工程学院,陕西 西安;袁克阔:西京学院土木工程学院,陕西 西安;陕西省混凝土结构安全与耐久性重点实验室,陕西 西安
关键词: 冻土工程冻融特性水热耦合寒区基础设施Frozen Soil Engineering Freeze-Thaw Characteristics Water Heat Coupling Infrastructure in Cold Regions
摘要: 冻土作为一种由土颗粒、冰、未冻水和气体组成的特殊四相介质,其复杂的物理力学性质对寒区工程建设提出了严峻挑战。本文系统综述了冻土工程特性、测试技术、力学行为及水热耦合机制的研究进展,重点分析了超声波和核磁共振技术在冻土检测中的应用、冻土强度衰变规律、卸载力学特性以及温升作用下的变形特征。研究表明,冻土区工程病害主要表现为冻胀和融沉,其机理与冻土的多相结构和水热过程密切相关。通过SHAW模型等数值工具,可有效模拟冻土对气候变化的响应。未来研究需进一步揭示冻土–结构相互作用机理,为寒区基础设施的长期稳定性提供理论支撑。
Abstract: Frozen soil, as a special four phase medium composed of soil particles, ice, unfrozen water, and gas, presents severe challenges to engineering construction in cold regions due to its complex physical and mechanical properties. This article systematically reviews the research progress on the engineering characteristics, testing techniques, mechanical behavior, and hydrothermal coupling mechanism of frozen soil. The focus is on analyzing the application of ultrasound and nuclear magnetic resonance technology in frozen soil detection, the strength decay law of frozen soil, the unloading mechanical properties, and the deformation characteristics under temperature rise. Research has shown that engineering diseases in permafrost regions mainly manifest as frost heave and thaw settlement, and their mechanisms are closely related to the multiphase structure and hydrothermal processes of permafrost. The SHAW model and other numerical tools can effectively simulate the response of frozen soil to climate change. Future research needs to further reveal the mechanism of permafrost structure interaction, providing theoretical support for the long-term stability of infrastructure in cold regions.
文章引用:张敏, 袁克阔, 黄镇斌. 冻土冻融过程研究综述[J]. 土木工程, 2025, 14(7): 1715-1722. https://doi.org/10.12677/hjce.2025.147185

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