1.内江师范学院 建筑工程学院;2.重庆大学 土木工程学院
O346
国家自然科学基金(52008213);山地城镇建设与新技术教育部重点实验室开放基金(LNTCCMA-20220107)
1.School of Architectural Engineering,Neijiang Normal University;2.a School of Civil Engineering;3.b Key Laboratory of New Technology for Construction of Cities in Mountain Area,Ministry of Education
National Natural Science Foundation of China (No. 52008213); Key Laboratory of New Technology for Construction of Cities in Mountain Area of Chongqing University (No. LNTCCMA-20220107)
随着可再生能源和地源热泵技术的不断发展,浅层地热能的开发逐渐成为国内外岩土工作者们的重点课题之一,但其理论研究远远落后于工程应用,尤其是土体在应力场和温度场复杂耦合作用下的力学机理研究尚不成熟。对于砂土、黏土、粉土等单一土体,国内外学者从温控试验和本构理论两个方面展开了相关研究,也取得了一系列的成果,对土体的热力学特性有一定的认识。为了更为全面深入的认识土体的热力学特性,使热本构模型在能源工程中更为贴合实际的进行推广和应用,本文首先概述了土体热力学性质的试验研究现状,随后,重点综述基于不同理论框架建立的土体热力学本构关系的国内外研究进展和现状,阐述热力学本构关系在实际工程中的应用,最后,针对目前存在的问题,提出进一步研究的建议,讨论并展望了土体热力学本构关系的研究发展趋势。
Exploitation of the shallow geothermal energy has gradually become a key topic in geotechnical engineering at home and abroad with the rapid development of renewable energy and geothermal heat pump technologies. However, the theory of the shallow geothermal energy falls far behind its application. In particular, the mechanism of soil under the complex coupling of stress and temperature fields remains unclear. For a single soil such as sand, clay, and silt, some results have been found by carrying out the temperature-controlled experiments and proposing the related thermal constitutive models. A certain understanding of the thermodynamic characteristics of soil is got. To promote more comprehensive and in-depth thermal behavior of soil and contribute to more practical promotion and application of the thermal constitutive model in energy engineering, this paper firstly summarizes the experimental research on the thermomechanical properties of soil. Then, the domestic and foreign research progress and status quo of thermomechanical constitutive relations of soil, based on different theoretical frameworks, are reviewed in detail. Thereafter, the application of these thermomechanical constitutive relations in practical engineering is introduced briefly. Finally, suggestions in further research are made, and the development trend of the thermomechanical constitutive relation of soil is discussed and prospected, in view of current existing problems.
您是本站第 10348509 访问者
通信地址:重庆市沙坪坝区沙正街174号,重庆大学A区 邮编:400044
电话:023-65111322;023-65111863 E-mail:xuebao@cqu.edu.cn
版权所有:土木与环境工程学报(中英文) ® 2025 版权所有