Ifsttar PhD subject

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Title : Soil-structure interaction: Optimising the design of deep foundations using an innovative experimental approach

Main host Laboratory - Referent Advisor GERS - SRO  -  REIFFSTECK Philippe      tél. : +33 181668386

Director of the main host Laboratory REIFFSTECK Philippe  -

PhD Speciality Geotechnique

Axis of the performance contract 2 - COP2017 - More efficient and resilient infrastructure

Main location Marne-la-Vallée

Doctoral affiliation

PhD school SCIENCES, INGENIERIE ET ENVIRONNEMENT (SIE)

Planned PhD supervisor REIFFSTECK Philippe  -  Université Gustave Eiffel  -  GERS - SRO

Planned financing Contrat doctoral 01-2B  - Université Gustave Eiffel

Abstract

The aim of the proposed thesis work is to develop hybrid tools for optimising the design of foundations. The current simplistic approach to modelling interfaces must benefit from the new knowledge acquired on the rheology of interfaces. In particular, it is necessary to implement displacement approaches that take into account the nature of the soil, its ageing/damaged state, the foundation construction technique and also the nature of the loading in terms of amplitude and duration of application. This type of method should make it possible to modulate the safety coefficients as a result of a better understanding of the pile's behaviour.

Keywords : Deep foundation, optimisation, piles, soil-structure interface, axial friction, cyclic loading

Main host Laboratory - Referent Advisor	GERS - SRO - REIFFSTECK Philippe tél. : +33 181668386
Director of the main host Laboratory	REIFFSTECK Philippe -
PhD Speciality	Geotechnique
Axis of the performance contract	2 - COP2017 - More efficient and resilient infrastructure
Main location	Marne-la-Vallée
Doctoral affiliation
PhD school	SCIENCES, INGENIERIE ET ENVIRONNEMENT (SIE)
Planned PhD supervisor	REIFFSTECK Philippe - Université Gustave Eiffel - GERS - SRO
Planned financing	Contrat doctoral 01-2B - Université Gustave Eiffel
Abstract The aim of the proposed thesis work is to develop hybrid tools for optimising the design of foundations. The current simplistic approach to modelling interfaces must benefit from the new knowledge acquired on the rheology of interfaces. In particular, it is necessary to implement displacement approaches that take into account the nature of the soil, its ageing/damaged state, the foundation construction technique and also the nature of the loading in terms of amplitude and duration of application. This type of method should make it possible to modulate the safety coefficients as a result of a better understanding of the pile's behaviour.
Keywords :	Deep foundation, optimisation, piles, soil-structure interface, axial friction, cyclic loading

List of topics

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