A coupled flow deformation model for expansive soil with temperature change
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Description
Expansive soils exhibit significant volume change when experiencing variation of temperature or moisture change. However, previous constitutive models on expansive soil mainly focus on hydraulic conditions, less attention on thermal field. This study delves into the thermo-hydro-mechanical behavior of expansive soils, crucial for applications such as nuclear waste disposal and thermal energy storage. A novel constitutive model, extended from bounding surface plasticity theory, is introduced to simulate the expansive soil behavior under various temperatures. A new approach on effective stress principle considering the effect of temperature is proposed. In this model, changes on suction and temperature are considered, which are in response to mechanical behaviors. Validated by temperature-controlled tests from [1], the proposed model shows potential in understanding the complex coupling of thermal, hydraulic, and mechanical processes in expansive soils, especially in cyclic environmental conditions
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ID Code: | 248000 | ||||||
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Item Type: | Chapter in Book, Report or Conference volume (Conference contribution) | ||||||
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Pure ID: | 166790925 | ||||||
Divisions: | Current > QUT Faculties and Divisions > Faculty of Engineering Current > Schools > School of Civil & Environmental Engineering |
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Funding Information: | The first author would like to express gratitude to the support from the China Scholarship Council (CSC) and Queensland University of Technology (QUT) for scholarship support. | ||||||
Copyright Owner: | Consult author(s) regarding copyright matters | ||||||
Copyright Statement: | This work is covered by copyright. Unless the document is being made available under a Creative Commons Licence, you must assume that re-use is limited to personal use and that permission from the copyright owner must be obtained for all other uses. If the document is available under a Creative Commons License (or other specified license) then refer to the Licence for details of permitted re-use. It is a condition of access that users recognise and abide by the legal requirements associated with these rights. If you believe that this work infringes copyright please provide details by email to qut.copyright@qut.edu.au | ||||||
Deposited On: | 16 Apr 2024 00:07 | ||||||
Last Modified: | 21 Apr 2024 01:18 |
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