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 development and key findings

Paul Wersin (University of Bern, retired)

10:30

Microbial hydrogen consumption in deep geological repositories – 11 years of the MA-A experiment

Ashley Brown (Nagra)

10:45

Coffee break

11:15

Fifteen years of BN experiment: fate of nitrate and selenium from bituminized radioactive waste in a clayey host rock

Nele Bleyen (SCK CEN)

11:30

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

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 deep drilling 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 (CL experiment)

David Jaeggi (swisstopo)

14:00

Overview and recent results of the Sandwich (SW-A) project

Matthias Hinze (GRS)

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)

14:30

Musical interlude with the Symphonic Orchestra Switzerland

Conducted by Annedore Neufeld

TECHNOLOGY AND MANAGEMENT

Chairperson: Martin Ziegler

15:15

BIM Mont Terri – a web platform for integrated management and planning of underground laboratory infrastructure

Stefan Volken (swisstopo)

15:30

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

Pascal Mosler (Schüssler-Plan Digital)

16:00

Coffee break

POSTER SESSION

Salle du séminaire

16:00 - 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.

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.