Essai au pénétromètre dynamique

Applied sciences
Génie civil
Géotechnique
Geotechnical investigation

Publications associées (19)

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Multi-Scale Approach to Cracking Criteria for Drying Silty Soils

Lyesse Laloui, Mohammad Monfared

Cracking is a most unwanted development in soil structures undergoing periodic drying. Desiccation cracking arises in the apparent absence of external forces. Hence, either an internal, self equilibrated stress pattern resulting from kinematic incompatibil ...

American Society of Civil Engineers2013

Numerical modeling and neural networks to identify model parameters from piezocone tests: II. Multi-parameter identification from piezocone data

Laurent Vulliet, Rafal Filip Obrzud, Andrzej Truty

This paper completes the study presented in the accompanying paper, and demonstrates a numerical algorithm for parameter prediction from the piezocone test (CPTU) data. This part deals with a development of neural network (NN) models which are able to map ...

Wiley-Blackwell2012

Numerical modeling and neural networks to identify model parameters from piezocone tests: I. FEM analysis of penetration in two-phase continuum

Laurent Vulliet, Rafal Filip Obrzud, Andrzej Truty

This study presents a numerical approach designed for material parameter identification for the coupled hydro-mechanical boundary value problem (BVP) of the piezocone test (CPTU) in normally and lightly overconsolidated clayey soils. The study is presented ...

Wiley-Blackwell2011

Geotechnical analysis of heat exchanger piles

Lyesse Laloui, Hervé Péron, Christoph Knellwolf

There is currently a lack of established calculation method for the geotechnical design of heat exchanger piles, although the technology is experiencing a fast expansion. Instead of quantifying the effects of temperature changes on the static behavior of h ...

American Society of Civil Engineers2011

Intergranular penetration of liquid gold into stainless steel

Michel Rappaz, Léa Deillon, Jean-Daniel Wagnière, Denis Favez

Intergranular penetration of liquid 18 K gold into a superaustenitic stainless steel, which occurs during laser welding of these two materials, has been studied using a C-ring device which can be put under tensile stresses by a screw. It is shown that liqu ...

Elsevier2011

Numerical modeling and neural networks to identify constitutive parameters from in situ tests

Rafal Filip Obrzud

This study proposes a new advanced algorithm for determining material parameters based on in situ tests. In situ testing gives an opportunity to perform soil characterization in natural stress conditions on a representative soil mass. Most field techniques ...

EPFL2009

Advanced Compact Device for the In-situ Determination of Geothermal Characteristics of Soils

Lyesse Laloui, Gilbert Steinmann

The in-situ thermal response test provides an effective method to determine the ground thermal properties required for the design of a geothermal energy installation. This paper presents a unique compact testing device for in-situ thermal response testing ...

2008

Theoretical Analysis of Fluid Inclusions for In Situ Soil Stress and Deformation Measurements

Dani Or

In situ determination of stress, strength, and deformation of soils for direct assessment of trafficability and susceptibility to compaction has been a long-standing problem in soil mechanics and agricultural engineering. Despite considerable progress in d ...

2006

TASC-eine PC-Anwendung zur Vorbeugung von Schadverdichtungen

Gilbert Steinmann, Etienne Diserens

TASC (TYRES/TRACKS AND SOIL COMPACTION) is an Excel tool designed foremost as an aid in arable farming. The vulnerability of the soil to the passage of wheels or tracks is assessed after considering soil and load property factors. Danger of soil compaction ...

2005

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Numerical modeling and neural networks to identify model parameters from piezocone tests: II. Multi-parameter identification from piezocone data

Laurent Vulliet, Rafal Filip Obrzud, Andrzej Truty

Wiley-Blackwell2012

Numerical modeling and neural networks to identify model parameters from piezocone tests: I. FEM analysis of penetration in two-phase continuum

Laurent Vulliet, Rafal Filip Obrzud, Andrzej Truty

Wiley-Blackwell2011

Advanced Compact Device for the In-situ Determination of Geothermal Characteristics of Soils

Lyesse Laloui, Gilbert Steinmann

2008