近年来,盐渍土路基防灾减灾、土地资源、石质文物保护、地热开发、二氧化碳地质封存、核废料处理等遇到的工程问题层出不穷。研究岩土体的热盐双扩散耦合理论是防止土地盐渍化、预防基础设施与石质文物病害、提高热提取率、加强封存效果和减少地下水污染的关键。围绕岩土体中的热盐双扩散耦合理论,分别总结了土体和岩石热盐双扩散耦合的研究方法,梳理了典型的理论模型。在此基础上,结合新时代能源需求和环保的现实意义,探讨了今后在各种工程应用领域中岩土体热盐双扩散耦合理论亟待深入研究的方向,并对比分析了岩土体热盐双扩散耦合模型。最后基于总结和对比分析,指出针对咸水层CO2封存、盐区地热开发和盐穴核废料处理等工程问题研究岩石裂隙中的热盐双扩散耦合理论的重要性,在土石质文物保护问题中提出对岩土体热盐扩散和力学效应耦合研究的展望。

Engineering challenges related to saline soil roadbed disaster prevention and mitigation, land resources, protection of stone relics, geothermal development, carbon dioxide geological storage, and nuclear waste disposal recently have become increasingly prominent. A critical factor in addressing these issues is understanding the coupling theory of thermal and salt diffusion in rock and soil. This theory is essential for preventing soil salinization, preventing diseases of infrastructure and stone relics, enhancing heat extraction efficiency, improving sealing effectiveness, and reducing groundwater pollution. This paper first summarizes the research methods related to thermohaline double diffusion coupling in both soil and rock. The paper then systematically reviews typical theoretical models in this field. Building on this foundation, the paper explores the future research directions for thermohaline double diffusion coupling theory, particularly in the context of modern energy demands and environmental protection needs. Comparative analyses of different thermohaline diffusion coupling models are also presented. Finally, the importance of studying the coupling theory of thermohaline diffusion in rock fissures is highlighted, especially in relation to critical engineering problems such as CO2 storage in saline aquifers, geothermal exploitation in salt zones, and nuclear waste disposal in salt caverns. Additionally, the paper outlines future research prospects for the coupling of thermohaline diffusion with mechanical effects in the context of soil and rock conservation, particularly for the preservation of cultural relics.

TU375.4