30 April

43TH TECHNICAL MEETING, DAY 2 - PORRENTRUY

PROGRAMME OF DAY 2

INTRODUCTION

08:50

Warm up and info about organization of the second day

Christophe Nussbaum (swisstopo)

ROCK MECHANICS AND THM

Chairperson: Oliver Czaikowski

09:00

The HE-E experiment: Comparative buffer analysis after 12 years of operation

Florian Kober (Nagra)

09:15

After over a decade of heating: field-scale insights into coupled processes from the Full-scale Emplacement Experiment

Raphaël Schneeberger (Nagra)

09:30

Laboratory characterisation of the GBM bentonite of the FE experiment: insights into the thermo-hydro-mechanical behaviour and implications for the field experiment

Eleonora Crisci (NESOL)

09:45

Thermo-Hydro-Mechanical (THM) processes in shale fault zones – experimental insights and future directions from Mont Terri

Yves Guglielmi (US DOE)

10:00

The PF-A Experiment: In situ progressive failure of faulted Opalinus Clay — Insights from underground excavation, laboratory tests, and numerical simulations

Martin Ziegler (swisstopo)

10:15

Numerical simulation of damage evolution around the PF/PF-A experimental borehole in faulted Opalinus Clay

Qinghua Lei (University of Uppsala)

10:30

Coffee break

ROCK MASS CHARACTERIZATION

Chairperson: Raphaël Schneeberger

11:00

KEYNOTE: State of stress in the brittle crust: experience gained at the Mont Terri laboratory and implications for geoenergies

Benoît Valley (CHYN)

11:30

Deciphering the Mont Terri anticline hydrogeology – shake it, weigh it, sample it

Felix Kästner (Helmholtz)

11:45

What do in-situ derived ultrasonic parameters tell us about the Opalinus Clay and Passwang Formations, as well as about a possible alternated stratification? — Results from 21 years in a nutshell

Kristof Schuster (BGR, retired)

12:00

Electrical and acoustic behavior of Opalinus clay with varying water content

Damien Jougnot (Sorbonne Université)

12:15

Multi-scale identification of geological discontinuities using machine learning

Rushan Wang (ETHZ WSL)

12:30

Closure of the meeting and final remarks

Christophe Nussbaum (swisstopo)

12:45

Lunch

VISIT OF THE ROCK LABORATORY

Bus transfer to Mont Terri rock laboratory, St-Ursanne

13:45 - 16:00

Rock laboratory visit in three groups:

  • Group 1: Martin Ziegler (swisstopo)
  • Group 2: David Jaeggi (swisstopo)
  • Group 3: Senecio Schefer (swisstopo)
16:15

Closure of TM-43 in St-Ursanne, if needed, bus transfer back to Porrentruy

List of posters

1.

501. Anisotropy and seismic velocities of Opalinus Clay and surrounding rock formations _ SI-A and SI-B experiments

S. Lueth (GFZ) et al.

2.

502. Over 20 years of GRS pore pressure investigations at Mont Terri Rock Laboratory (MTRL) - an overview

K. Jantschik (GRS) et al.

3.

503. Testing heat transport and heat storage in heterogenous fractured and karstified limestone

B. Valley (CHYN) et al.

4.

504. A summary of initial self-sealing test results for selected argillaceous rocks in England

T. Berry (Leeds University et al.

5.

505. DR-D Diffusion Experiment in the Sandy Facies of Opalinus Clay: Preparatory Rock Characterization, Installation and Diffusion Tests

S. Ratnayake (KIT) et al.

6.

506. Comparison of modelling approaches for the DR-C and DR-D diffusion experiments

T. Hennig (GFZ) et al.

7.

507. Applying the squeezing technique for pore water chemical characterization in Mont Terri for over 30 years

A.M. Fernandez Diaz (CIEMAT) et al.

8.

508. Microbial hydrogen consumption in crushed Opalinus Clay as backfill material of a deep geological repository

C. Rolland (EPFL) et al.

9.

509. Solute transport across an aged concrete / claystone interface (CI-D): tracking diffusion after 4.4 years of tracer circulation

U. Mäder (Rock Water Consulting) et al.

10.

510. Evolution of a concrete - claystone interface during 17 years of an in situ experiment (CI): characterisation by high-resolution chemical and mineralogical analysis

U. Mäder (Rock Water Consulting) et al.

11.

511. Modelling uranium migration in Opalinus Clay – the value of data, knowledge and experience from 30 years at Mont Terri

T. Schöne (GFZ) et al.

12.

512. Oxygen persistence in compacted bentonite and its impact on microbial activity in future deep geological repository

N. Jakus (EPFL) et al.

13.

513. Mineralogical and geochemical OPA characterization: constraints for OPA pore water chemical modelling

C. Lerouge (BRGM) et al.

14.

514. Attention to detail - thermo-osmosis and heterogeneity as explanation of the Mont Terri Deep Borehole observations

F. Kiszkurno (TU Freiberg) et al.

15.

515. Understanding time-dependent deformation in Opalinus Clay: insights and implications

L. Gotzen (RWTH Aachen) et al.

16.

516. Modelling bentonite re-saturation with an advanced COMSOL-VIPER code: A synthesis of developments

M. Kröhn (GRS) et al.

17.

517. The LT-A experiment and the need for long-term laboratory tests

S. Schumacher (BGR) et al.

18.

518. Aspects of hydraulic-mechanical coupling in the sandy facies of Opalinus Clay – CD-A experiment in the Mont Terri rock laboratory

G. Ziefle (BGR) et al.

19.

519A. Laboratory studies supporting the Sandwich in-situ experiment

K. Emmerich (KIT) et al.

20.

519B. Semi-technical scale experiment HTV-9

K. Emmerich (KIT) et al.

21.

520. Rock mass response in the vicinity of the Sandwich experiment

J. Hesser (BGR) et al.

22.

521. Comparing results of ERT and TDR measurements in Sandwich SW-A project

M. Furche (BGR) et al.

23.

522. Numerical simulation of the Sandwich sealing system – An international benchmark study

L. Friedenberg (GRS) et al.

24.

523. Long-term in-situ evidence for transient CO2 leakage in faulted caprock at Mont Terri: summary of results from the CS-D and CS-E experiments

A. P. Rinaldi (ETHZ) et al.

25.

524. Release of gases and organic compounds during heating of Opalinus Clay from the Mont Terri rock laboratory

C. Ostertag-Henning (BGR) et al.

26.

525. Machine-learning approach for mineralogy prediction from drill core images in clay-rich and adjacent formations

R. Boiger (PSI) et al.

27.

526. Design and experimental characterization of potential processed clay rock-based backfill and sealing materials

M. Middelhoff (GRS) et al.

28.

527. Comparison of different fibre-optic strain sensing methods in tunnel linings (TS Experiment)

T. Vogt (Nagra) et al.

29.

528. Contribution of Mont Terri URL to the development of the Cigéo project in France

G. Armand and J.C. Robinet (Andra)

30.

529. Wireless System and In-Situ Performance Results at the Sandwich Shaft

S. Tunon Valladares (Amphos21) et al.