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    Fully Coupled Model for One-Dimensional Large-Strain Consolidation and Heat Conduction in Saturated Clay

    Source: Journal of Engineering Mechanics:;2023:;Volume ( 149 ):;issue: 004::page 04023014-1
    Author:
    Wenhao Jiang
    ,
    Chen Feng
    ,
    Shangqi Ge
    ,
    Saiou Fu
    ,
    Jiangshan Li
    DOI: 10.1061/JENMDT.EMENG-6852
    Publisher: American Society of Civil Engineers
    Abstract: The consolidation characteristics of soils are affected by both mechanical loading and ambient temperature. However, research on this coupled theory is lacking. In this study, a fully coupled model for one-dimensional large-strain consolidation and heat conduction is established, where the influences of temperature on the physical-mechanical properties of saturated clay are considered. Based on the finite difference method, the numerical solutions for the coupled model are developed. Moreover, the correctness is validated by comparing the calculational results of the proposed model with those of the COMSOL simulation (a finite element software simulation) and the classical analytical solutions, respectively. Finally, the effects of different factors on consolidation behaviors are discussed. It is found that the increase in temperature increment ΔT generally accelerates the dissipation rate of excess pore-water pressure (EPWP) and increases the final settlement. The settlement is gradually reduced with an increasing effective yield stress σcR. A larger permeability coefficient kvr,R leads to an increasing EPWP dissipation rate. Furthermore, it is observed that the influence of σcR on the settlement is slightly enhanced with an increasing ΔT, while the effect of kvr,R on the dissipation rate of EPWP becomes less remarkable under a higher ΔT. In conclusion, the proposed coupled model can properly describe the large-strain consolidation behaviors of saturated clay when the effect of heat conduction is incorporated.
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      Fully Coupled Model for One-Dimensional Large-Strain Consolidation and Heat Conduction in Saturated Clay

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    contributor authorWenhao Jiang
    contributor authorChen Feng
    contributor authorShangqi Ge
    contributor authorSaiou Fu
    contributor authorJiangshan Li
    date accessioned2023-08-16T19:01:31Z
    date available2023-08-16T19:01:31Z
    date issued2023/04/01
    identifier otherJENMDT.EMENG-6852.pdf
    identifier urihttp://yetl.yabesh.ir/yetl1/handle/yetl/4292641
    description abstractThe consolidation characteristics of soils are affected by both mechanical loading and ambient temperature. However, research on this coupled theory is lacking. In this study, a fully coupled model for one-dimensional large-strain consolidation and heat conduction is established, where the influences of temperature on the physical-mechanical properties of saturated clay are considered. Based on the finite difference method, the numerical solutions for the coupled model are developed. Moreover, the correctness is validated by comparing the calculational results of the proposed model with those of the COMSOL simulation (a finite element software simulation) and the classical analytical solutions, respectively. Finally, the effects of different factors on consolidation behaviors are discussed. It is found that the increase in temperature increment ΔT generally accelerates the dissipation rate of excess pore-water pressure (EPWP) and increases the final settlement. The settlement is gradually reduced with an increasing effective yield stress σcR. A larger permeability coefficient kvr,R leads to an increasing EPWP dissipation rate. Furthermore, it is observed that the influence of σcR on the settlement is slightly enhanced with an increasing ΔT, while the effect of kvr,R on the dissipation rate of EPWP becomes less remarkable under a higher ΔT. In conclusion, the proposed coupled model can properly describe the large-strain consolidation behaviors of saturated clay when the effect of heat conduction is incorporated.
    publisherAmerican Society of Civil Engineers
    titleFully Coupled Model for One-Dimensional Large-Strain Consolidation and Heat Conduction in Saturated Clay
    typeJournal Article
    journal volume149
    journal issue4
    journal titleJournal of Engineering Mechanics
    identifier doi10.1061/JENMDT.EMENG-6852
    journal fristpage04023014-1
    journal lastpage04023014-14
    page14
    treeJournal of Engineering Mechanics:;2023:;Volume ( 149 ):;issue: 004
    contenttypeFulltext
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    DSpace software copyright © 2002-2015  DuraSpace
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