29 April

43TH TECHNICAL MEETING, DAY 1 - PORRENTRUY

PROGRAMME OF DAY 1

WELCOME AND KEYNOTE

08:30

Registration opens

09:00

Welcome address, aims and organisation of the meeting

Christophe Nussbaum (swisstopo)

09:10

KEYNOTE: Nuclear transmutation: alternative to waste disposal?

Andreas Pautz (PSI)

 

Geochemistry and microbiology

Chairpersons: Nele Bleyen / Urs Mäder

10:00

Main lessons learned from 30 years of geochemical experiments at Mont Terri

Pierre de Cannière (FANC, retired)

10:15

30 years of porewater chemistry at Mont Terri: methods, results and modelling

Paul Wersin (University of Bern, retired)

10:30

Microbial hydrogen consumption in deep geological repositories – 16 years of the MA-A experiment

Ashley Brown (Nagra)

10:45

Coffee break

11:15

Fifteen years of BN Experiment at Mont Terri: fate of nitrate and selenium from bituminized radioactive waste in a clay host rock

Nele Bleyen (SCK CEN)

11:30

How does cement affect the swelling pressure of bentonite? A modelling approach (CI)

Andreas Jenni (University of Bern)

11:45

DR-C: diffusion in a thermal gradient experiment at Mont Terri

Guillaume Pochet (FANC)

12:00

Constraining transport parameters for performance and safety assessments: Bridging 30 years of Mont Terri in situ diffusion experiments with laboratory-scale data of rock samples from other sites

Raphaël Wuest (Nagra)

12:15

Lunch

CO2 AND GAS EXPERIMENTS

Chairperson: Michael Kühn

13:30

Hydro-mechanical-chemical processes in Opalinus Clay during CO2 injection in CL experiment

Roman Makhnenko (University of Illinois)

13:45

Testing caprock integrity of Opalinus Clay by means of a novel experimental setup (CO2LPIE experiment)

David Jaeggi (swisstopo)

14:00

THM processes of clay-rich fault zones: Lessons learned and perspectives from the Mont Terri fault activation experiments

Yves Guglielmi (US DOE)

14:15

The second gas injection test of the GT experiment: What it tells us about the first test and self-sealing

Robert Cuss (BGS)

TECHNOLOGY AND MANAGEMENT

Chairperson: Martin Ziegler

14:30

BIM Mont Terri

Stefan Volken (swisstopo)

14:45

Integrating geometric and semantic information using extended reality: a case study on BIM Mont Terri

Pascal Mosler (Schüssler-Plan Digital)

15:00

Lessons on research, regulation, reputation … and longevity from the Mont Terri URL history

Thomas Flüeler (ETHZ)

15:15

Madrigals of different epochs

David Zehnder and ensemble

15:45

Coffee break

POSTER SESSION

Salle du séminaire

15:45 - 17:45

Poster session

David Jaeggi, Martin Ziegler, Senecio Schefer (swisstopo)

17:45

Apéritif

18:45

Invited dinner

(sponsored by swisstopo)

List of posters

1.

Microbial hydrogen consumption in the crushed Opalinus Clay backfill of a deep geological repository.

C. Rolland (EPFL) et al.

2.

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

S. Schumacher (BGR) et al.

3.

Rock mass response in the vicinity of the Sandwich experiment

J. Hesser (BGR) et al.

4.

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

M. Furche (BGR) et al.

5.

Simulating Sandwich Shaft 1: An insight into the DECOVALEX Sandwich Task

L. Friedenberg (GRS) et al.

6.

Laboratory work in the frame of the Sandwich project

K. Emmerich (KIT) et al.

7.

Semi-technical scale experiment HTV-9

K. Emmerich (KIT) et al.

8.

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

S. Tunon Valladares (Amphos21) et al.

9.

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

U. Mäder (Rockwaterconsulting) et al.

10.

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 (Rockwaterconsulting) et al.

11.

Experimental and numerical analysis of hydraulic-mechanical interactions in claystone: insights from in-situ measurements and modeling of the twin niches (CD-A experiment)

G. Ziefle (BGR) et al.

12.

Anisotropy and seismic velocities of Opalinus Clay and surrounding rock formations

S. Lueth (GFZ) et al.

13.

Attention to detail: Insights on thermo-osmosis and the relevance of heterogeneity from back analysis of the Mt. Terri Deep Borehole experiment

F. Kiszkurno (TU Freiberg) et al.

14.

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

T. Schöne (GFZ) et al.

15.

Design and experimental characterization of potential claystone-based backfill and sealing materials

M. Middelhoff (GRS) et al.

16.

Sorption and diffusion studies on Opalinus Clay from the sandy facies for the DR-C and DR-D experiments

S. Ratnayake (KIT) et al.

17.

Mineralogical and geochemical OPA characterization constraints for OPA pore water chemical modelling

C. Lerouge (BRGM) et al.

18.

Over 20 years of GRS pore pressure investigations at MT-Lab - an overview

K. Jantschik (GRS) et al.

19.

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

T. Hennig (GFZ) et al.

20.

Machine-learning approaches for mineralogy prediction from drill core images in clay-rich formations

R. Boiger (PSI) et al.

21.

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

L. Gotzen (RWTH Aachen) et al.

22.

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

T. Vogt (Nagra) et al.

23.

Studying CO2 leakage on faults: summarising 7 years of activities at the CSD/CSE experiments

A. P. Rinaldi (ETH) et al.

24.

Long-term monitoring of elevation changes in the Mont Terri Rock Laboratory: impact of the excavation of galleries 08 and 18

S. Condamin (swisstopo) et al.

25.

Pore water chemistry characterization by the squeezing technique in the context of the Mont Terri Project

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

26.

Modelling bentonite re-saturation at limited water supply from the rock with the advanced COMSOL-VIPER code

M. Kröhn (GRS) et al.

27.

Gases and organic compounds released during heating of Opalinus Clay from the Mont Terri subsurface lab

C. Ostertag-Henning (BGR) et al.

28.

Heat storage in fractured and karstified rock masses

B. Valley et al. (CHYN)