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温度-循环荷载作用下饱和土的力学特性研究

张升, 刘雪晴, 徐硕, 熊勇林, 张锋

张升, 刘雪晴, 徐硕, 熊勇林, 张锋. 温度-循环荷载作用下饱和土的力学特性研究[J]. 岩土工程学报, 2018, 40(6): 994-1001. DOI: 10.11779/CJGE201806004
引用本文: 张升, 刘雪晴, 徐硕, 熊勇林, 张锋. 温度-循环荷载作用下饱和土的力学特性研究[J]. 岩土工程学报, 2018, 40(6): 994-1001. DOI: 10.11779/CJGE201806004
shu
ZHANG Sheng, LIU Xue-qing, XU Shuo, XIONG Yong-lin, ZHANG Feng. Mechanical characteristics of saturated soils under thermo-cyclic loads[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(6): 994-1001. DOI: 10.11779/CJGE201806004
Citation: ZHANG Sheng, LIU Xue-qing, XU Shuo, XIONG Yong-lin, ZHANG Feng. Mechanical characteristics of saturated soils under thermo-cyclic loads[J]. Chinese Journal of Geotechnical Engineering, 2018, 40(6): 994-1001. DOI: 10.11779/CJGE201806004
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温度-循环荷载作用下饱和土的力学特性研究  English Version

  • 1. 中南大学土木工程学院,湖南 长沙 410072;
    2. 高速铁路建造技术国家工程实验室,湖南 长沙 410072;
    3. 广州供电局有限公司,广东 广州 510620;
    4. 宁波大学建筑工程与环境学院,浙江 宁波 315211;
    5. 名古屋工业大学,日本 名古屋4668555

基金项目: 优秀青年科学基金项目（51722812）; 国家重点基础研究发展计划（“973”计划）项目（2014CB047001）
详细信息
    作者简介:

    张 升(1979- ),男,教授,博士生导师,主要从事计算土力学等方面的教学和科研。E-mail：zhang-sheng@csu.edu.cn。

Mechanical characteristics of saturated soils under thermo-cyclic loads

  • 1. School of Civil Engineering, Central South University, Changsha 410072, China;
    2. National Engineering Laboratory for High-Speed-Railway Construction, Central South University, Changsha 410072, China;
    3. Guangzhou Power Supply Co., Ltd., Guangzhou 510620, China;
    4. Faculty of Architectural, Civil Engineering And Environment, Ningbo University, Ningbo 315211, China;
    5. Department of Civil Engineering, Nagoya Institute of Technology, Nagoya 4668555, Japan

摘要

    摘要
  • 摘要: 对高放核废料处置、地热资源开发利用等工程,土体在交变荷载作用下的大变形问题,必须考虑温度的影响。在上下负荷面的框架内,引入等价应力的概念,建立了能描述交变荷载作用下饱和土受温度影响的力学特性的本构模型。结合已有文献中的试验数据,对所建立的模型进行了验证。结果表明,模型计算结果较好地吻合了实验结果;通过控制模型参量,模型能够同时描述不同温度下饱和土的交变移动特性,揭示了温度升高对饱和土体抗变形能力增强的内在机理。建立的模型对研究饱和砂土在温度和循环载荷下共同作用下的力学性能具有参考意义。
    Abstract: The impact of temperature on the large deformation of nuclear waste disposal, geothermal extraction and storage under cyclic load is should be considered. In the framework of super-subloading surface, the concept of equivalent stress is introduced to establish a constitutive model. The model can represent the mechanical characteristics of saturated clay affected by thermo-cyclic loads. Based on the experimental data, the model is validated. The results show that the constitutive model can be used to calculate the experimental data. It can describe the alternating mobility of saturated soils at different temperatures by controlling the parameters of the model, and it is revealed that the increase of temperature is the inherent resistance to deformation mechanism. The model is of reference significance for the mechanical properties of saturated sand under temperature and cyclic loads.
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    • 参考文献(19)
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出版历程
  • 收稿日期:  2017-03-22
  • 发布日期:  2018-06-24

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