Coupled Hydro-Mechanical Analysis of the Pre-failure and the Failure Behaviour of a Dyke on Soft Subsoil: Formulation and Synthesis of Results

C. Jommi, D. Sterpi, T. de Gast, S. Muraro, E. Ponzoni, H. van Hemert

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

Abstract

In an attempt to evaluate current models for the safety assessment of dykes on soft soils, STOWA, the foundation for research on regional dykes in the Netherlands, launched and supported a full scale test on a regional historical dyke, which included observation of the pre-failure response and the design of its failure. The stress test on the dyke included progressive excavation at the toe and rapid drawdown in the ditch next to the toe of the embankment, until failure eventually occurred. The data and the observations collected on site during the test are a unique body of information on the coupled hydro-mechanical pre-failure behaviour and on the resistance of the earth construction. A selection of these data was included in the formulation of the Theme C of the 15th International Benchmark Workshop on Numerical Analysis of Dams, held in September 2019 in Milano, Italy. This contribution presents the main outcomes of the numerical benchmark, coming from the results of the different groups, which analysed the case with current geotechnical constitutive and numerical models.

Original languageEnglish
Title of host publicationNumerical Analysis of Dams - Proceedings of the 15th ICOLD International Benchmark Workshop, ICOLD-BW 2019
EditorsGabriella Bolzon, Donatella Sterpi, Guido Mazzà, Antonella Frigerio
PublisherSpringer
Pages645-665
Number of pages21
ISBN (Print)9783030510848
DOIs
Publication statusPublished - 2021
Event15th ICOLD International Benchmark Workshop on Numerical Analysis of Dams, ICOLD-BW 2019 - Milan, Italy
Duration: 9 Sep 201911 Sep 2019

Publication series

NameLecture Notes in Civil Engineering
Volume91
ISSN (Print)2366-2557
ISSN (Electronic)2366-2565

Conference

Conference15th ICOLD International Benchmark Workshop on Numerical Analysis of Dams, ICOLD-BW 2019
CountryItaly
CityMilan
Period9/09/1911/09/19

Keywords

  • Earth construction
  • Full scale test
  • Hydro-Mechanical behaviour
  • Safety assessment

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