WORKSHOP
Geological Survey of Norway, February 20-21, 2006
The workshop is organized by the Åknes/Tafjord project and includes all the participants involved with
the investigations and monitoring.
The main aim is to:
• Present all results so far. This is important for the progress of the project and planning of
activities.
• Increase the corporation between the involved groups
PROGRAMME
Monday February 20th
10:00 Welcome: Arne Bjørlykke, Director General NGU/Project leader Kjell Jogerud, Åknes/Tafjord
prosjektet
10:10 Blikra, L.H, NGU: The Åknes/Tafjord project, status and plans for 2006
Investigations related to regional hazard analysis (Storfjorden)
10:30 Henderson, I. & Saintot, A. (NGU): Investigations related to structural geology and rockslope
failures in the Storfjorden area
10:50 Andresen, H. (Blom Geomatics): Air-born laser scaning in Storfjorden
11:10 Longva, O. (NGU): Rockslide events recorded in the fjords
11:30 Dahle, H. (SINTEF): Horizontal stress and its implications on rockslope stability – proposed
plans
11:40 Atakan, K. (University of Bergen): Need for earthquake hazard analysis?
12:00 Anda, E. (Møre & Romsdal County) & Blikra, L.H. (NGU): Quantification of rock-avalanche and
tsunami risk in Storfjorden and in the county
12:30-13:10 Lunsj
13:20 Crosta, G. (Univ. of Milano Bicocca): Plans for regional hazard investigations
13:40 Jaboyedoff, M. (Univ. of Lausanne): DEM analysis of laser data
Investigations at Åknes
14:00
14:20
14:40
15:00
Derron, M-H. (NGU): DEM and laser data
Dietrich, M. (University of Grenoble): Seismic refraction seismic and microseismic network
Iwe, H. (NGI): Georadar and instrumentation in boreholes
Rønning, J.S., Dalsegg, E. & Elvebakk, E. (NGU): 2D resistivity data and geophysical logging of
boreholes
15:30 Ganerød, G. V. (NGU): Geological model of Åknes based on geophysical and geological data
Coffee break
16:10 Nilsen, B. (NTNU) & Kveldsvik, V. (NGI): Engineering geology and numerical modelling
16:30 Bhasin, R. (NGI): Sensitivity of input parameters in rock slope stability analysis
16:35 Braathen, A. (University of Bergen): Pilot study – Pressure gradients on Basal Shear Zones of
rock-slope failures
16:40 Grøneng, G. NTNU: Analysis of movement data and plans for FLAC modelling
17:00 Löw, S. & Willenberg, H. (ETH): Plans for research project on deep groundwater percolations
inducing weathering processes and strength degradation
17:20 Willenberg, H. & Löw, S. (ETH): The Randa research site
17:40 Crosta, G. (Univ. of Milano Bicocca): Monitoring sites in Italy
18:00 Closure
19:30 Workshop dinner
Tuesday February 21st
Slide dynamics and Tsunami modelling
09:00 Harbitz, C. (NGI): Tsunami modelling, present results and further plans
09:20 Domaas, U. (NGI): Research project on slide dynamics at Åknes
09:40 Beitnes, A. (SINTEF): Laboratory experiments: Slide model and tsunami
Monitoring
10:00 Eiken, T. (University of Oslo) & Gellein, J. (NGU): GPS monitoring data at Åknes, Hegguraksla
and other sites
10:20 Rivolta, C. (LISALab): Ground-based radar, the Åknes survey
10:40 Nordland, R. (IKT System Partner AS): Monitoring at Hegguraksla (ground-based radar and
accelerometer)
Coffee break
11:10 Dehls, J. (NGU) & Lauknes, T.R. (NORUT): SAR data from Storfjorden and monitoring at Åknes
and Hegguraksla
11:30 Krangnes, L. (Fugro): Laser monitoring at Åknes
11:50 Roth, M. (NORSAR): Seismic monitoring at Åknes
12:10 Andersen, J. (Instrumenttjenesten AS): Meteorological station at Åknes
12:20-13:00
Lunsj
13:10 Lovisolo, M. (CSG): DMS system - Plans for monitoring in borholes
13:30 Christiansen, H. (UNIS): Use of "shock loggers" and temperature loggers
13:40 Nicolaisen, M. (NGU): Database and integration of monitoring data
14:00 Group discussions: Plans for investigations and monitoring in 2006.
1.
2.
3.
4.
Regional hazard analysis
Site investigations (geology, geophysics, drilling)
Monitoring
Slide dynamics and tsunami
15:00 Presentations of the group discussions
15:40 Final remarks from the international advisors Professor Simon Löw and Professor Giovanni
Crosta
16:00 Closure of workshop