5th International US/German Workshop Information


Hotel Registration

Sunday Sept. 7

Monday Sept. 8

Tuesday Sept. 9

Wednesday Sept. 10

Thursday Sept. 11


Companion Tours

Previous Workshops

Past Presenters


Welcome to the website for collaboration between U.S and German researchers with a mutual interest in radioactive waste disposal in deep geologic salt repositories. This year we are pleased to announce that we will be holding our FIFTH workshop in the series titled Salt Repository Research, Design, and Operation.  Using this website you can explore the technical agenda for the workshop, the workshop venue, companion tours that are being offered, and the one-day geology tour that we are offering.The purpose of these series of workshops is to assemble invited key investigators in salt repository science and engineering.   These researchers have identified a coordinated research agenda.  That agenda was agreed to in principle by all participants (individually or in concert with others) with the intent of maximizing individual resources for the mutual benefit of each program.   Each year the workshop has highlighted an area of interest (see previous workshops).

Click here to view this year’s group photo

 US-German graphic-2
TheUS-German fifth workshop will highlight Repository Design and Operations and this topic will be the focus of the first day. The focus of the second day will be the Thermomechanical Behavior Of Salt, Plugging And Sealing, And The Safety Case. Special topics will be addressed on the third day.Sandia National Laboratories (SNL) , Deutsche Gesellschaft zum Bau und Betrieb von Endlagern für Abfallstoffe (DBE TEC) and Project Management Agency Karlsruhe (PTKA) look forward to welcoming participants this year from: the U.S Department of Energy (DOE), Research Specialists (RESPEC), DEEP GmbH, Clausthal University of Technology (TU Clausthal), Bundesanstalt für Geowissenschaften und Rohstoffe/Federal Institute for Geosciences and Natural Resource (BGR), Federal Ministry of Economics and Technology (Germany)(BMWi), Bundesamt für Strahlenschutz/Federal Office for Radiation Protection (BFS), Institut für Gebirgsmechanik GmbH (IfG), Gesellschaft für Anlagen- und Reaktorsicherheit (GRS), Braunschweig University of Technology (TU Braunschweig), Karlsruhe Institute of Technology/Institute for Nuclear Waste Disposal (KIT/INE), Organization for Economic Co-operation and Development/Nuclear Energy Agency (OECD/NEA), Landesamt für Bergbau, Energie und Geologie/State Authority for Mining, Energy, and Geology (LBEG), Nuclear Research and Consultancy Group (NRG).
With this US/German Workshop series now in its fifth year, we wish to thank two people whose dedication to furthering salt repository science through international collaboration has made this series of workshops possible.  Andrew Orrell’s professional experience spans technical and managerial efforts at the Waste Isolation Pilot Plant and the Yucca Mountain Programs in the US, as well as technical support for several international programs involving geologic repository development. He will now lend his talents to the IAEA. Enrique Biurrun has headed diverse repository research, development, demonstration, and provided management leadership for more than 30 years. He recently retired as Head of the International Cooperation Department in DBE Technology GmbH. Renewed relationships have given rise to prolific salt research collaborations, which in turn rekindled the concept of an international “Salt Club” under the auspices of the OECD-NEA, as a forum for implementing international cooperation and exchange.Thank you, gentlemen.

Enrique Biurrun

andrew 2

S. Andrew Orrell

Technical Agenda

September 8 – Monday

08:00-08:45 Sign-in and distribution of meeting materials
08:45-09:45 Welcome addresses H.C. Pape (BMWi) US-DOE Offices
Highlights of US/German Collaboration F. Hansen (SNL), W. Steininger (PTKA)

Repository Operational Safety

10:00-10:45 Welcome and keynote on operational safety S. Rottler, Vice President (SNL)
10:45-11:00 Break
11:00-11:20 Operational safety activities in Germany T. v. Berlepsch (DBE TEC)
11:20-11:40 Operational safety at US repositories E. Hardin (SNL)
11:40-12:00 Case Study: Recent WIPP Experience A. Van Luik (CBFO)
12:00-13:30 Workshop Group Photo and Lunch
13:30-14:00 WIPP Recovery Plan Tammy Reynolds (NWP)
14:00-14:30 Panel Discussion E. Hardin – Lead

Retrievability and Repository Design

14:30-14:50 U.S. Perspective on retrievability, retrieval, and reversibiltiy S. Wagner (SNL)
14:50-15:10 Retrievability as design requirement for a repository for HLW and SF W. Bollingerfehr (DBE TEC)
15:10-15:30 Salt Disposal RD&D R. MacKinnon (SNL)
15:30-15:50 Natural Analogues N. Rempe US
15:50-16:10 Dutch Salt Safety Case and Research Program J. Hart (NRG)
16:10-16:30 Break
16:30 Depart for Los Alamos Bradbury Museum Tour and Dinner J. Icenhower (SNL)
Day 1 Companion Event – Walking Tour of Downtown Santa Fe
Begins 10 AM. Map will be provided



September 9 – Tuesday

TM-Behavior of Salt

08:30-08:50 Update on the “Joint Project on Constitutive Laws benchmark” A. Hampel (Scientific Consultant)
08:50-09:10 Modeling WIPP rooms B/D L. Argüello (SNL)
09:10-09:30 Laboratory tests on WIPP salt (update) U. Düsterloh (TU Clausthal)
09:30-09:50 Laboratory tests on WIPP salt (update) T. Popp (IfG)
09:50-10:10 Complementary laboratory tests on WIPP salt at higher temperatures I. Plischke (BGR)
10:10-10:30 Characterization of halite from WIPP and Gorleben M. Pusch (BGR)
10:30-10:50 Break

Plugging and Sealing

10:50-11:10 Shaft Seal System of VSG N. Müller-Hoeppe (DBE TEC)
11:10-11:30 ELSA shaft seal project U. Glaubach (TU BAF)
11:30-11:50 Salt reconsolidation principles and application F. Hansen (SNL)
11:50-12:10 Discrepancy between modeling and measurement in the realization of real seals N. Müller-Hoeppe (DBE TEC)
12:10-13:30 Lunch

Safety Case and Performance Assessment

13:30-13:50 Summary /Synopsis and open questions of the VSG J. Mönig (GRS)
13:50-14:10 US response on the methodological approach (Interim report ISIBEL-project) C. Camphouse (SNL)
14:10-14:30 PA development (PFLOTRAN) and the Safety Case G. Hammond (SNL)
14:30-14:50 Visualization tool VIRTUS: possibilities and limits of application K. Wieczorek (GRS)
14:50-15:20 Break
15:20-15:35 FEPs development activities G. Freeze (SNL)
15:35-15:50 FEPs development activities J. Wolf (GRS)
15:50-16:10 IGD-TP Joint Activity: Handling of uncertainties D-A. Becker (GRS)
16:10-16:30 Feedback Session G. Freeze (SNL)
16:30 Optional – Restaurant reservations for those interested at Omira Bar & Grill (Brazilian Buffet), 1005 S. St. Francis Drive

Day 2 Companion Event – Folk Art Museum of Santa Fe

Begins 10 AM. Transportation will be provided



Technical Agenda

September 10 – Wednesday

08:30-09:00 Uncertainty and Sensitivity Analysis for Repository Systems in Rock Salt D-A. Becker (GRS)

Special Topics

09:00-9:30 HM-modeling and two-phase flow R. Wolters (TUCl), J. Rutquist (LBNL)
9:30-10:00 P&T in the context of waste management W. Bollingerfehr (DBE TEC), J. Mönig (GRS)
10:00-10:30 Report on discussion results of the hydrology group (separate micromeeting) J. Wolf (GRS), K. Kuhlman (SNL)
10:30-10:45 Break
10:45-11:15 NEA-Salt Club update J. Mönig, Chairman (GRS)
11:15-12:00 Proposals for future joint collaboration: German Perspective W. Steininger (PTKA), W. Bollingerfehr (DBE TEC)
Proposals for future joint collaboration: US Perspective C. Leigh (SNL)
12:00-13:00 Lunch

Specially Scheduled Breakout Sessions

13:00-17:00 To be selected C. Leigh (SNL)

Day 3 Companion Event

Nothing in particular is scheduled