Analytical Model of an Anchored Wall in Creep Soils
This article has been corrected.
VIEW CORRECTIONPublication: International Journal of Geomechanics
Volume 20, Issue 4
Abstract
A new analytical model of soil–structure interaction for creep ground is proposed, which can be used to calculate the load evolution on an anchored structure over time and the associated creep strains. This complete boundary problem solution employs the Burgers model or any mechanical or empirical model, and the Borowicka hypothesis of settlement and movement produced by a force into an elastic semispace. The singularity that appears when a point load is applied at the beginning of the anchor depth was solved with the integration of the Mindlin equation for a distributed constant load at a particular depth acting on an annular surface. The solution was validated for a slab anchored to the ground with a finite-difference model contrast and applied to an actual anchored wall located in Scotland. The numerical and analytical prediction models show good agreement. The results demonstrate the relevance of having specific creep tests, for at least a minimum duration, to make an adequate estimation of the parameters and to obtain an accurate prediction.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
This research (Project REOLOGIC: “New design procedures and real-time control of the rheological behavior of retaining structures in large scale linear works,” RTC-2016-5755-4) was funded through the Ministry of Economy and Competitiveness (MINECO) of Spain from the framework of the 2016 challenge/collaboration. The authors would like to thank Ferrovial Agroman S.A., who provided the field tests and data of the work of the wall studied and allowed its publication. Finally, we would also like to thank Itasca Consultores S.L. for the technical assistance received in generating the numerical model in finite differences.
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International Journal of Geomechanics
Volume 20 • Issue 4 • April 2020
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©2020 American Society of Civil Engineers.
History
Received: Mar 14, 2019
Accepted: Sep 19, 2019
Published online: Feb 4, 2020
Published in print: Apr 1, 2020
Discussion open until: Jul 4, 2020
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