International Workshop of Young Doctors 
in Geomechanics 
 

Paris, December 4 - 6, 2002

Ecole Nationale des Ponts et Chaussées
Champs-sur-Marne


Scope
Organisation
Partners & Sponsors
Scientific Coordination
Contributions
Programme
Workshop Coordinators
Location & Accommodation

Scope
The scope of W(H)YDOC 02 (Paris, December 4 - 6,  2002) is to bring together young geotechnical doctors within an informal three days invited Workshop, so as to allow for the presentation of researches carried out during their PhD thesis. Students completing their last PhD year are also welcomed. Several senior researchers from various European Universities will act as discussion leaders during the sessions. The Workshop is aimed at favouring informal and constructive exchanges about recent research results and ideas. 
Organisation
No specific research topic is suggested, in order to highlight the variety of the researches presently carried out in the Universities involved. The number of contributions has been limited so as to allow for individual presentations and discussions of all contributions. The official language is English.

Six sessions have been forseen on the three days Workshop, each day workshop will be opened by an Invited Keynote Lecture held by an eminent geotechnical scientist. Sessions will be coordinated and animated by a Discussion Leader (Professor) and a Secretary (Young Doctor).

Scheduled time for the presentations is 30 minutes, each presentation will be followed by 5 minutes of discussion. The content of each contribution presented at the Workshop is summarised in a two pages abstract (including figures and references) provided by the authors. A volume containing all the abstracts will be edited by the organisers and distributed on the day of the Workshop. 

The participation to the Workshop is free, it includes coffee breaks and Workshop Proceedings. The participation to the Workshop does not include lunches. The latter will be covered by the organisation for all contributors and discussion leaders.
 

Partners
The Universities that agreed up to now to participate to W(H)YDOC 02 are listed below; various of them are already partners within the ALERT and DIGA European networks. A total of 25 contributions coming from 11 countries are presented during the three days workshop.
Bauhaus University of Weimar (D) University of Bristol (UK)
C.E.D.E.X. Madrid (SP) University of Birmingham (UK)
Ecole Centrale de Nantes (F) University of Leeds (UK)
Ecole Nationale des Ponts et Chaussées (F) Université de Liège (B)
LMS-G3S Ecole Polytechnique (F) Università di Napoli "Federico II" (I)
Ecole Polytechnique de Lausanne (CH) University of Oxford (UK)
Imperial College of Science, Tech. and Med. (UK) Universitat Politecnica de Catalunya (SP)
Institut National Polytechnique de Grenoble (F) Università di Roma "Tor Vergata" (I)
Laboratoire Central des Ponts et Chaussées (F) University of Stavanger (NO)
National Technical University of Athens (GR) University of Swansea (UK)
Politecnico di Milano (I) University of Tongji (China)
Universidad Central de Venezuela (V) Università di Trento (I)

Sponsors


ALERT ANDRA DIGA ENPC IRSN


Scientific Coordination
David MUIR WOOD - University of Bristol (UK)
Roberto NOVA - Politecnico di Milano (I)
Gyan N. PANDE - University of Swansea (UK)
Manuel PASTOR - C.E.D.E.X. Madrid (SP)
Rasmus RISNES - Stavanger University (NO)
Felix DARVE - Institut National Polytechnique de Grenoble (F)
Pierre DELAGE - Ecole Nationale des Ponts et Chaussées (F)
 

Secretary
Vincenzo DE GENNARO - Ecole Nationale des Ponts et Chaussées (F)


Contributions
 
NAME
FUNCTION
ORGANISATION
TITLE OF CONTRIBUTION
CO-AUTHORS
TUTOR
1
Joseph S. ANTONY
Lecturer
 University of Leeds (UK)
Quasi-static shear deformation characteristics of granular systems: insights from DEM simulations
 
 
2
Marcos ARROYO
Dr.
Iberinsa (SP), formerly at University of Bristol (UK)
 On Casagrande & Carrillo induced & inherent anisotropy concept
 
 Prof. D.M. Wood
3
Emilio BILOTTA
Dr.
Università di Napoli "Federico II" (I)
 Effects of embedded diaphragm walls on mouvements induced by tunnel excavation
 
 Prof. C. Viggiani
4
Roger ESTEPHAN
Ph.D.
 Ecole Nationale des Ponts et Chaussées (F)
 Experimental and numerical approaches to the study of the behaviour of micropile groups and networks subjected to vertical or horizontal loading
 R. Frank
Prof. R. Frank 
5
Gert BARTHOLOMEEUSEN
 Ph.D.
University of Oxford (UK)
Determination of structural porosity 
G.C. Sills 
Prof. G.C. Sills 
6
 Riccardo CASTELLANZA
 Dr.
Politecnico di Milano (I)
Weathering effects on the mechanical behaviour of soft rocks: an experimental study 
 R. Nova
Prof. R. Nova
7
Cane CEKEREVAC
 Ph.D.
Ecole Polytech. Federale de Lausanne (CH) 
 Thermally dependent constitutive model for soils
L. Laloui 
Dr. L. Laloui 
8
Fréderic COLLIN
 Ph.D.
 Universite de Liège (B)
Modelling of unsaturated chalk: from experiment to reservoir 
 Ch. Schroeder
R. Charlier
V. De Gennaro
Prof. R. Charlier 
9
Luca de SANCTIS
 Dr.
 Università di Napoli "Federico II" (I) 
New design criteria for piled rafts and related methods of analysis 
 
Prof. C. Viggiani 
10
Jose A. FERNANDEZ-MERODO 
 Ph.D.
 CEDEX Madrid (SP)
Modelling lanslides in volcanic soils: las colinas landslide (El Salvador, February 2001) 
M. Pastor
P. Mira 
Prof. M. Pastor 
11
Francesco FROIIO
 Ph.D.
 Università di Roma "Tor Vergata" (I)
Numerical Photogrammetry in laboratory experiences on 2D slopes 
G. Viggiani
F. Laouafa 
 Prof. A. Musso
12
Giovanni GRASSELLI
 Dr.
 Imperial College of Science, Technology and Medicine (UK)
A new peak shear strength criterion for rough rock joints 
 
 
13
 Yu HUANG
 Dr.
 Tongji University (China)
Coupled seismic response of deep saturated soil deposit in Shanghai 
 W.-M. Ye Y.-Q. Tang Z.-C. Chen
 
14
Merete V. MADLAND
 Ph.D.
Stavanger University College (NO)
Temperature effects in high porosity chalk 
R. Risnes 
Prof. R. Risnes 
15
Duilio MARCIAL
 Ph.D.
Universidad Central de Venezuela / ENPC (V)
The time dependent changes of the microstructure of a compacted MX80 Bentonite at constant volume 
P. Delage
Y.J. Cui
X. Ruiz 
Prof. P. Delage 
16
Nicole METJE
 Dr.
University of Birmingham (UK)
Optical fibre sensors for remote tunnel displacement measurements 
C. Rogers
D. Chapman
S. Kukureka
 
17
 Keyvan MALEKI
 Ph.D.
LMS-G3S Ecole Polytechnique (F)
 Numerical modelling of damage and permeability in claystone: application to underground radioactive waste storage
 A. Pouya
P. Berest
P. Dangla
 Dr. A. Pouya
18
Khaldoun NASREDDINE
 Ph.D.
Laboratoire Central des Ponts et Chaussées (F)
 Effect of principal stress rotation on the behaviour of natural soils
 
 Prof. J-P Magnan Dr. Ph. Reiffsteck
19
Roberto L. RODRIGUEZ-PACHECO
 Ph.D.
 Universitat Politecnica de Catalunya (SP)
An experimental study on influence of the hydromechanical behaviour on flow and transport of contaminants 
 L. Candela
A. Lloret
 Prof. A. Gens
20
Marcelo SANCHEZ
 Ph.D.
 Universitat Politecnica de Catalunya (SP)
A double structure model for expansive clays 
A. Gens
S. Olivella 
 Prof. A. Gens
21
Robrecht M. SCHMITZ
 Ph.D.
 Universite de Liège (B)
A correlation between clay mineralogy and Atterberg limits 
Ch. Schroeder
R. Charlier 
Prof. R. Charlier 
22
Snehasis TRIPATHY
 Dr.
 Bauhaus University of Weimar (G)
A Re-examination of swelling pressures of compacted bentonites from Gouy-Chapman diffuse double layer theory 
 T. Schanz
 Prof. T. Schanz
23
Emmanouil VAIRAKTARIS
Ph. D.
National Technical University of Athens (GR)
 Contribution to the inverse subsidence diffusion-convection problem in geostructures 
 I. Vardoulakis
E. Papamichos
V. Dougalis
Prof. I. Vardoulakis
24
Pui Lee VUN
 Ph.D.
University of Birmingham (UK)
Simulation of pipeline behaviour on liquefied seabed: numerical study 
 A.H.C. Chan
S. Dunn
 
25
Juhua XIONG 
 Dr.
 Tongji University (China)
Study on stability and displacements of DMP retaining wall in soft soil 
M. Yang 
 Prof. M. Yang 

 

Programme

 
Wednesday 4th, December 2002

 
8h30 - 9h00
Registration
9h00 - 9h15
Welcome
 
SESSION 1: THM coupling in geomaterials (part 1)
Discussion Leader: Prof. F. Darve (INPG Grenoble, France)
Secretary: G. Bartholomeeusen (University of Oxford, United Kingdom)
9h15 - 9h55
Invited Keynote Lecture
Modelling of fast landslides
Prof. M. PASTOR (CEDEX Madrid, Spain)
9h55 - 10h30
 Temperature effects in high porosity chalk 
M.V. Madland, R. Risnes - Stavanger University College (Norway)
10h30 - 10h55
Coffee Break
10h55 - 11h30
Modelling of unsaturated chalk: from experiment to reservoir
F. Collin, Ch. Schroeder, R. Charlier - Université de Liège (Belgium)
V. De Gennaro - Ecole Nationale des Ponts et Chaussées (France)
11h30 - 12h05
Thermally dependent constitutive model for soils
C. Cekerevac,  L.Laloui - EPFL Lausanne (Suisse)
12h05 - 12h40
 A double structure model for expansive clays
M. Sanchez, A. Gens, S. Olivella - Universitat Politecnica de Catalunya (Spain)
12h40 - 14h30
Lunch
 
SESSION 2: THM coupling in geomaterials (part 2)
Discussion Leader: Prof. P. Delage (ENPC Paris, France)
Secretary: F. Collin (Université de Liège, Belgium)
14h30 - 15h05
A re-examination of swelling pressures of compacted bentonites from Gouy-Chapman diffuse double layer theory
S. Tripathy, T. Schanz - Bauhaus University of Weimar (Germany)
15h05 - 15h40
Time dependent changes of  microstructure of a compacted MX80 Bentonite at constant volume
D. Marcial, P. Delage,Y.J. Cui - Ecole Nationale des Ponts et Chaussées (France)
X. Ruiz - Universitat Politecnica de Catalunya (Spain)
15h40 - 16h05
Coffee Break
16h05 - 16h40
Determination of structural porosity in red mud suspensions
G. Bartholomeeusen, G.C. Sills - University of Oxford (United Kingdom)
16h40 - 17h15
A correlation between clay mineralogy and Atterberg limits
R.M. Schmitz, Ch. Schroeder, R. Charlier - Université de Liège (Belgium)
17h30
Cocktail

 
Thursday 5th, December 2002

 
9h15 - 10h15 
Visit: CERMES laboratory
SESSION 3: Constitutive modelling in geomaterials
Discussion Leader: Prof. R. Risnes (Stavanger University College, Norway)
Secretary: R. Castellanza (Politecnico di Milano, Italy)
10h15 - 10h55
Invited Keynote Lecture
Yielding in soils: constitutive fiction and experimental observation
Prof. D. MUIR WOOD (University of Bristol, United Kingdom)
10h55 - 11h20
 Coffee Break
11h20 - 11h55
On Casagrande & Carrillo induced & inherent anisotropy concept
M.Arroyo - Iberinsa Madrid (Spain), formerly at University of Bristol (United Kingdom)
11h55 - 12h30
Numerical modelling of damage and permeability in claystone: application to underground radioactive waste storage
K. Maleki, LMS-G3S Ecole Polytechnique (France)
A. Pouya, P. Dangla - Laboratoire Central des Ponts et Chaussées (France)
12h30 - 13h05
Contribution to the inverse subsidence diffusion-convection problem in geostructures
E. Vairaktaris, I. Vardoulakis - NTU Athens (Greece)
E. Papamichos - SINTEF Petroleum Research (Norway)
V. Dougalis - University of Athens (Greece)
13h05 - 14h30
Lunch
 
SESSION 4: Experiments on the mechanical behaviour of geomaterials
Discussion Leader: Prof. D. MUIR WOOD (University of Bristol, United Kingdom)
Secretary: N. Metje (University of Birmingham, United Kingdom)
 14h30 - 15h05
Effect of principal stress rotation on the behaviour of natural soils
K. Nasreddine - Laboratoire Central des Ponts et Chaussées (France)
14h30 - 15h05
Weathering effects on the mechanical behaviour of soft rocks: an experimental study
R. Castellanza, R. Nova - Politecnico di Milano (Italy)
15h40 - 16h05
Coffee Break
16h05 - 16h40
 An experimental study on influence of the hydromechanical behaviour on flow 
and transport of contaminants
R.L. Rodriguez-Pacheco, L. Candela, A. Lloret - Universitat Politecnica de Catalunya (Spain)
16h40 - 17h15
A new peak shear strength criterion for rough rock joints
G. Grasselli - Imperial College of Science, Technology and Medicine (United Kingdom)

 
Friday 6th, December 2002

 
 
SESSION 5: Mechanical behaviour of geotechnical structures
Discussion Leader: Prof. R. Nova (Politecnico di Milano, Italy)
Secretary: D. Marcial (Universidad Central de Venezuela - ENPC, Venezuela)
9h15 - 9h55
Invited Keynote Lecture
Geomaterial Modelling 'Sans Frontières'
Prof. G.N. PANDE (University of Swansea, United Kingdom)
9h55 - 10h30
 Experimental and numerical approaches to the study of the behaviour of micropile groups and networks subjected to vertical or horizontal loading
R. Estephan, R. Frank - Ecole Nationale des Ponts et Chaussées (France)
10h30 - 10h55
 Coffee Break
10h55 - 11h30
Coupled seismic response of deep saturated soil deposit in Shanghai 
Y. Huang, W.-M. Ye, Y.-Q. Tang, Z.-C. Chen - Tongji University (China)
11h30 - 12h05
New design criteria for piled rafts and related methods of analysis
L. de Sanctis - Università di Napoli "Federico II" (Italy)
12h05 - 12h40
 Study on stability and displacements of DMP retaining wall in soft soil
J. Xiong, M. Yang - Tongji University (China)
12h40 - 14h30
Lunch
 
SESSION 6: Stability Analysis and Tunnels 
Discussion Leader: Prof. G.N. Pande (University of Swansea, United Kingdom)
Secretary: J.A. Fernandez-Merodo (CEDEX Madrid, Spain)
14h30 - 15h05
Effects of embedded diaphragm walls on mouvements induced by tunnel excavation
E. Billotta - Università di Napoli "Federico II" (Italy)
15h05 - 15h40
Optical fibre sensors for remote tunnel displacement measurements
N. Metje - University of Birmingham (United Kingdom)
15h40 - 16h05
Coffee Break
16h05 - 16h40
Simulation of pipeline behaviour on liquefied seabed: numerical study
P.L. Vun, A.H.C. Chan - University of Birmingham (United Kingdom)
S. Dunn - HR Wallingford Ltd. (United Kingdom)
16h40 - 17h15
Numerical Photogrammetry in laboratory experiences on 2D slopes
F.Froiio - Università di Roma "Tor Vergata" (Italy)
G. Viggiani - INPG Grenoble (France)
F. Laouafa - INERIS (France) formerly at INPG Grenoble (France)

Workshop Coordinators
Vincenzo De Gennaro - Pierre Delage 
degennar@cermes.enpc.fr / delage@cermes.enpc.fr
Ecole Nationale des Ponts et Chaussées - CERMES 
6-8 Av. Blaise Pascal, Cité Descartes Champs-sur-Marne 
77455 Marne-la-Vallée Cedex 2 
Tel.: ++33 1 64 15 35 43-44 ; Fax: ++33 1 64 15 35 62

Location & Accommodation 
The Workshop will be held at Ecole Nationale des Ponts et Chaussées (ENPC/ENSG, see figure below), Marne-la-Vallée. ENPC  is located in the east of Paris. 

It can be easily reached by RER A train from the center of Paris. To get a map of the links existing between ENPC site ("Noisy-Champs" RER A station), airports, "Gare du Nord" railway station (Eurostar train) and "Gare de Lyon" railway station click here

Local accommodation in Paris for people attending the Workshop: click here
 
 

Accommodations for Discussion Leaders and Contributors are as follows:


For the Discussion Leaders, reserved rooms for the nights of Tuesday 3rd, Wednesday 4th and Thursday 5th December are at Hotel Senlis, in the center of Paris, near the RER B station "Luxembourg". From Hotel Senlis, ENPC can be reached by RER B line (from "Luxembourg" station to "Châtelet les Halles" station) and then RER A line (from "Châtelet les Halles" station to "Noisy-Champs" station (plan: click here ). Transfer takes about 45 minutes. 
 



 

For the Contributors, reserved rooms for the nights of Tuesday 3rd, Wednesday 4th and Thursday 5th December are at Hotel Formule 1 (see figure below), near the RER A station "Gare RER Noisy-Champs" and close to the ENPC (10 minutes by walk)