<abstract xmlns="http://www.w3.org/1999/xhtml"><p>The design of shallow foundations on swelling soils needs a thorough study to evaluate the effect of swelling potential soil on the final foundation heave. For this reason, a simple analytical approach based on the soil stress state under the foundation can be used to calculate the foundation heave. This paper reports a set of analytical and numerical analysis using the finite-difference code (FLAC 3D), performed on an isolated shallow foundation founded on a swelling soil mass at N’Gaous city in Batna Province, Algeria, subjected to distributed vertical loads. Further, the influence of some parameters on total heave was analyzed, such as the embedded foundation and soil stiffness. The analysis results from the proposed 3D modelling was compared and discussed with analytical results. The numerical results obtained show a good agreement with the analytical solutions based on oedometer tests proposed in the literature, and deliver a satisfactory prediction of the heave of the shallow foundations.</p></abstract>

The design of shallow foundations on swelling soils needs a thorough study to evaluate the effect of swelling potential soil on the final foundation heave. For this reason, a simple analytical approach based on the soil stress state under the foundation can be used to calculate the foundation heave. This paper reports a set of analytical and numerical analysis using the finite-difference code (FLAC 3D), performed on an isolated shallow foundation founded on a swelling soil mass at N’Gaous city in Batna Province, Algeria, subjected to distributed vertical loads. Further, the influence of some parameters on total heave was analyzed, such as the embedded foundation and soil stiffness. The analysis results from the proposed 3D modelling was compared and discussed with analytical results. The numerical results obtained show a good agreement with the analytical solutions based on oedometer tests proposed in the literature, and deliver a satisfactory prediction of the heave of the shallow foundations.

Heave analysis of shallow foundations founded in swelling clayey soil at N’Gaous city in Algeria

Laboratory of Natural Risk and Regional Planning (LRNAT)

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

The design of shallow foundations on swelling soils needs a thorough study to evaluate the effect of swelling potential soil on the final foundation heave. For...

Heave analysis of shallow foundations founded in swelling clayey soil at N’Gaous city in Algeria

Article Category: Original Study

Published Online: Jul 07, 2020

Page range: 210 - 221

Received: Sep 09, 2019

Accepted: May 14, 2020

DOI: https://doi.org/10.2478/sgem-2019-0051

Keywords
Clayey soils, swelling, analytical approach, foundation heave, numerical modelling

© 2019 Abdelaziz Khennouf et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Heave analysis of shallow foundations founded in swelling clayey soil at N’Gaous city in Algeria

Article Category: Original Study

Published Online: Jul 07, 2020

Page range: 210 - 221

Received: Sep 09, 2019

Accepted: May 14, 2020

DOI: https://doi.org/10.2478/sgem-2019-0051

KeywordsClayey soils, swelling, analytical approach, foundation heave, numerical modelling

© 2019 Abdelaziz Khennouf et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Keywords
Clayey soils, swelling, analytical approach, foundation heave, numerical modelling