Liquefaction of Saturated Soil and the Diffusion Equation

The paper deals with the diffusion equation for pore water pressures with the source term, which is widely promoted in the marine engineering literature. It is shown that such an equation cannot be derived in a consistent way from the mass balance and the Darcy law. The shortcomings of the artificia...

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Bibliographic Details
Main Authors: Sawicki Andrzej, Sławińska Justyna
Format: Article
Language:English
Published: Sciendo 2015-06-01
Series:Studia Geotechnica et Mechanica
Subjects:
Online Access:https://doi.org/10.1515/sgem-2015-0018
Description
Summary:The paper deals with the diffusion equation for pore water pressures with the source term, which is widely promoted in the marine engineering literature. It is shown that such an equation cannot be derived in a consistent way from the mass balance and the Darcy law. The shortcomings of the artificial source term are pointed out, including inconsistencies with experimental data. It is concluded that liquefaction and the preceding process of pore pressure generation and the weakening of the soil skeleton should be described by constitutive equations within the well-known framework of applied mechanics. Relevant references are provided
ISSN:2083-831X