Effective Stress in Multiphase Porous Media

Location: IC 03/604, Ruhr-Universität Bochum

Date: Thursday, 15th till Friday, 16th of September, 2016

Day II

Thursday, 15th of September, 2016

OpeningTom Schanz, Ruhr-Universität Bochum

Microstructure of compacted soils and ist evolutionEduardo Alonso, Universitat Politècnica de Catalunya

Microstructural evolution of normal and high activity compacted claysAlessio Ferrari, École Polytechnique Fédérale de Lausanne

Coffee break

A unified normal compression line for saturated and unsaturated soilsDomenico Gallipoli, Université de Pau et des Pays de l'Adour

A dynamic model for unsaturated soil including hydraulic hysteresisNasser Khalili, UNSW Australia

Day III

Friday, 16th of September, 2016

Experimental validation of effective stress concept in fine grained soils –

proposed procedure and first test resultsDiethard König, Ruhr-Universität Bochum, Gunnar Heibrock, Hochschule Kaiserslautern

Bishop‘s parameter:

placing soil fabric at the heart of hydromechanical couplingJean Vaunat, Universitat Politècnica de Catalunya

Coffee break

Effective stresses for unsaturated states stemming from an experimental

investigation into the micro-mechanics of unsaturated clays Alessandro Tarantino, Matteo Pedrotti, University of Strathclyde Glasgow

Effective stress in clays of various mineralogyWiebke Baille, Ruhr-Universität Bochum, Snehasis Tripathy, Cardiff University

Lunch

A Meshfree Method for Fully Coupled Analysis

of Flow and Deformation in Unsaturated Porous Media Arman Khoshghalb, UNSW Australia

Effective stress in unsaturated soils: A look to past and future perspectives Ehsan Nikooee, University of Utrecht

14:00

14:30

15:15

16:00

16:30

17:15

08:30

09:15

10:00

10:30

11:15

12:00

12:45

13:30

Location: IC 03/604, Ruhr-Universität Bochum

Date: Thursday, 15th till Friday, 16th of September, 2016

Registration

Ÿ by E-Mail: conference-gbf@rub.deŸ or Fax: +49 2343214236

Mr. Mrs. Title:

Name: h

First Name: h

Company: h

Department: h

Street: h

City: h

Country: h

Phone: h

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Workshop fee: (invoice will be sent after registration) 150€ h hPlace, Date Signature

Contact

Wolfgang Lieske, M.Sc.Ruhr-Universität BochumDepartment of Civil and Environmental EngineeringChair of Foundation Engineering, Soil and Rock Mechanics

Universitätsstraße 15044801 Bochum

Phone: + 49 2343226080Fax: + 49 2343214236E-Mail: conference-gbf@rub.de

Website: www.gbf.rub.de

A list of recommended hotels near the venue will be sent to you along your booking confirmation.

Effective Stress in Multiphase Porous Media

Motivation

To date there is an ongoing discussion about

how to describe the effect of soil water interac-

tion (in terms of suction) when dealing with the

mechanical behavior of partially saturated

soils.

One approach is to describe the macroscopic

effect of suction in terms of effective stress.

This has the fundamental advantage that

classical soil mechanic principles can be

applied to partially saturated soils.

A growing number of lab tests indicate that the

effective stress concept is sufficient to describe

macroscopic effects of soil water interaction

when dealing with limit state, e.g. shear

strength, related problems.

However, a systematic experimental vali-

dation, taking into account the full mechanical

stress and suction range as well as different

failure modes is still missing and different

aspects of this approach are under discussion.

On this workshop the state of the art con-

cerning this research field will be discussed.

Different invited speakers will present their

experimental data, analyze existing and new

data sets and present theoretical background

and investigations on the level of micro-

structure.

Bochum, August 2016

Tom Schanz