"Stress measurements in Finnish nuclear waste site"
Kimmo Kemppainen, Posiva Oy
10th May at 9.30 am
Kimmo Kemppainen is a geologist (M.Sc.) working presently at Posiva Oy as Research manager. Posiva Oy is an expert organisation responsible for the final disposal of spent nuclear fuel of the owners.
During last 12-years his area of expertise has changed from geological data acquisition and modeling to the rock mechanics in situ experiments and to the overall understanding of underground characterization at the research facility ONKALO. At the moment he is head of R&D- support unit, which responsibility is co-ordinate and perform research and demonstration tasks for disposal of spent nuclear fuel.
"Stress field in Fennoscandia"
Visiting Professor Ove Stephansson, GFZ German Research Centre for Geosciences
11th May at 9.00 am
Ove Stephansson is Emeritus Professor at The Royal Institute of Technology KTH in Stockholm and presently Visiting Professor at GFZ German Research Centre for Geosciences, Potsdam Germany. From 1974 to 1990 he was teaching rock mechanics for the mining students at Luleå Technical University in Sweden and from 1991 to retirement 2002 he tout engineering geology for the civil engineers at KTH in Stockholm. Rock stress and rock stress measurements is one of his main areas of expertise and he is the co-author of two text-books about measuring rock stress and the stress field of the Earth's crust. He has experience of applying rock stress and its measurement to mining and civil engineering with applications to mathematical modelling, disposal of spent nuclear fuel and radioactive waste and more recently induced seismicity related to geothermal energy extraction and deep geological disposal of radioactive waste. He serves on several Commissions of the ISRM including the Commission on Crustal Stress and Earthquake and he is active in the working group of the World Stress Map project at GFZ in Potsdamhave.
"Stress fields in deep mines"
Stephen D. McKinnon, Queens University
11th May at 9.45 am
Steve McKinnon is a mining geomechanics engineer. Since 1998 he has held the Chair in Mine Design in the Robert M. Buchan Department of Mining at Queen’s University, Kingston, Canada. Prior to this, he held positions of increasing seniority in consulting companies based in Canada, Sweden, USA, and Chile. He also spent a five year period as a research engineer in the deep gold mines of South Africa. His primary area of expertise is in the application of rock mechanics to underground mine design, and in the assessment of rock mass stability. Current research interests include mining induced seismicity, and the interaction between stress fields and geological structures in mines.
"Development of hydraulic fracturing method"
Francois Cornet, emeritus professor
12th May at 9.00 am
François Henri Cornet is presently Emeritus Professor at the Institut de Physique du Globe de Strasbourg. Prior to teaching in Strasbourg, he worked in the Department of Seismology at the Institut de Physique du Globe de Paris, and was also Visiting Scientist at Stanford University and at The Lawrence Berkeley National Laboratory. His main research interests are in rock mechanics - specialising in measurement and modelling of stress fields; in rock-fluid interactions, including induced seismicity and application to geothermal energy development; and in the development of large scale, in situ, geophysical laboratories. Professor has consulted internationally on stress field evaluations for the last thirty years.
“An integrated approach for the evaluation of measurements and inferences of in-situ stresses”
Ömer Aydan, University of Ryukyus
12th May at 9.45 am
Ömer AYDAN, who is presently the professor of material science at the Department of Civil Engineering and Architecture of University of the Ryukyus, is specialized in geo-mechanics and geo-engineering. He earned his B.Sc. degree in Mining Engineering at Istanbul Technical University, Turkey, M.Sc. degree in Rock Mechanics and Excavation Engineering at Newcastle upon Tyne University, UK and PhD degree in Rock Engineering at Nagoya University of Japan. He was employed by ETIBANK State Mining Company of Turkey, Nagoya University, Tokai University, Japan in the past.
He has special interest in the stress state of earth’s crust and analyzed the stresses through analytical solutions and finite element methods. For practical applications, he has developed various techniques for inferring the stress state in the earth’s crust though utilization of geological features (i.e. striation, kinking, dyke intrusion, folding), damage zone formation around blasted holes, focal mechanism solutions and crustal deformation obtained from GPS. Furthermore, he has applied the Acoustic Emission technique for evaluation the stress state in Turkey and in Ryukyu Archipelago, Japan. He has also interest in earthquake prediction utilizing the variations of stresses in the earth’s crust.