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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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
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spelling doaj-4d18d14eee85436bac3ecce76d7973782021-09-05T14:00:35ZengSciendoStudia Geotechnica et Mechanica2083-831X2015-06-01372394410.1515/sgem-2015-0018sgem-2015-0018Liquefaction of Saturated Soil and the Diffusion EquationSawicki Andrzej0Sławińska Justyna1Institute of Hydro-Engineering, IBW PAN, ul. Kościerska 7, 80-328 Gdańsk-Oliwa, PolandInstitute of Hydro-Engineering, IBW PAN, ul. Kościerska 7, 80-328 Gdańsk-Oliwa, PolandThe 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 providedhttps://doi.org/10.1515/sgem-2015-0018liquefactiondiffusion equationsaturated soilseabed
collection DOAJ
language English
format Article
sources DOAJ
author Sawicki Andrzej
Sławińska Justyna
spellingShingle Sawicki Andrzej
Sławińska Justyna
Liquefaction of Saturated Soil and the Diffusion Equation
Studia Geotechnica et Mechanica
liquefaction
diffusion equation
saturated soil
seabed
author_facet Sawicki Andrzej
Sławińska Justyna
author_sort Sawicki Andrzej
title Liquefaction of Saturated Soil and the Diffusion Equation
title_short Liquefaction of Saturated Soil and the Diffusion Equation
title_full Liquefaction of Saturated Soil and the Diffusion Equation
title_fullStr Liquefaction of Saturated Soil and the Diffusion Equation
title_full_unstemmed Liquefaction of Saturated Soil and the Diffusion Equation
title_sort liquefaction of saturated soil and the diffusion equation
publisher Sciendo
series Studia Geotechnica et Mechanica
issn 2083-831X
publishDate 2015-06-01
description 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
topic liquefaction
diffusion equation
saturated soil
seabed
url https://doi.org/10.1515/sgem-2015-0018
work_keys_str_mv AT sawickiandrzej liquefactionofsaturatedsoilandthediffusionequation
AT sławinskajustyna liquefactionofsaturatedsoilandthediffusionequation
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