One-dimensional nonlinear consolidation theory for soft ground considering secondary consolidation and the thermal effect

Based on the assumption that the change of the void ratio is caused by effective stress, creep effect and temperature, a one-dimensional nonlinear consolidation theory considering the thermal effect is established that contains the heat balance equation and the continuity equation. Verification and...

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Bibliographic Details
Published in:Computers and geotechnics 2018-12, Vol.104, p.22-28
Main Authors: Liu, Quan, Deng, Yue-Bao, Wang, Tian-Yuan
Format: Article
Language:English
Subjects:
Analytical solution
Consolidation
Consolidation theory
Continuity equation
Energy dissipation
Heat
Heat balance
Heating
Methods
Nonlinear
Nonlinear systems
Pore water
Secondary consolidation
Soft ground
Solifluction
Temperature
Thermal effect
Void ratio
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Summary:Based on the assumption that the change of the void ratio is caused by effective stress, creep effect and temperature, a one-dimensional nonlinear consolidation theory considering the thermal effect is established that contains the heat balance equation and the continuity equation. Verification and calculation examples are performed. The results show that the dissipation rate obtained using the present method is slower than that obtained using the traditional method. The pore water dissipation rate or consolidation rate considering the secondary consolidation and temperature is higher than that when only considering secondary consolidation. Heating accelerates the dissipation rate of pore water, especially in the early stage of consolidation.
ISSN:0266-352X
1873-7633
DOI:10.1016/j.compgeo.2018.08.007