Workshops

DateSeptember 9, 2012
TimeWorkshop 1 13:30-17:20,Workshop 2 13:30-15:30,Workshop 3 16:00-18:00
VenueL Plaza (Sapporo Center for Gender Equality),Sapporo,Hokkaido,Japan
For location,see page 32


Workshop 1
Intelligent Compaction (IC)
“Intelligent compaction" is the advanced soil compaction in which the construction and the site management are sophisticated with modern information communication technologies. The ground evaluation system through the vibrating behavior of a vibratory roller is one of the representative techniques in the intelligent soil compaction. In the system,the degree of soil compaction can be grasped by monitoring its vibrating behavior which changes with the increase of the ground stiffness during soil compaction. The intelligent compaction has been introduced widely in the world,because the stiffness of the compacted soil can be monitored in real-time on whole the site. In the workshop,the present conditions of the intelligent compaction will be reported on each region of Europe,North America and Japan and the results of other research projects will be presented by some participants.

PROGRAM
Chair: Prof. Kazuyoshi Tateyama (Ritsumeikan University,Japan)
13:30-15:30 State of the art reports on the Intelligent compaction
Europe: Prof. A. Gomes Correia (University of Minho,Portugal)
North America: Dr. David White (Iowa State University, USA)
Japan: Dr. Hiroshi Furuya (Obayashi Corporation,Japan)
16:00-17:00 General presentations on the Intelligent Compaction
17:00-17:20 Discussion



Workshop 2
Challenges for Transportation Geotechnics in Extreme Climates
This session will be divided into two categories. One is transportation geotechnics at low temperatures such as in cold regions or at high altitudes. Many road,ra il road and air field structures are seriously damaged every year due to the freezing and thawing of soils and of the lower, unbound, materials beneath the pavement Dr. Seppo Saarelainen, co-chair of TC216 on Frost,from Finland,will make a state-of-the-art report.The report will include frost protection design procedures in the Nordic countries,c ase studies from the European North and results from recent studies on the effect of future climate change on road systems in the North.
The other topic is about the effect of moisture on the behavior of soils and aggregates in transportation structures. Mr. Andrew Dawson from UK,chair of the European COST Action and editor of the reference book on "Water in Road Structures" will make a general report, addressing the effects that water can have on mechanical response,methods for measuring, analyzing and managing the condition and what effects pavements and associated earthworks may have to face in the light of climate change.
Presentations will be given by experts drawn from the TC members, with others, to stimulate participants' interest.


PROGRAM
Chair: Dr. Seppo Saarelainen (Aalto University,Finland)
13:30-14:20 General report: transportation geotechnics at low temperatures.
Dr. Seppo Saarelainen (Aalto University, Finland)
Presentations and discussions
Chair: Mr. Andrew Dawson (University of Nottingham, UK)
14:20-15:10 General report: Effect of moisture on the behavior of soils and aggregates in transportation structures.
Mr. Andrew Dawson (University of Nottingham, UK)
Presentations and discussions
15:10-15:30 Summarizing comments



Workshop 3
Geotechnical Challenges in Rail Track and its Transition Zones
Railway transition zones between different structures,especially embankment and bridge, are known to be an area in which problems often arise and where extra care is needed in inspections or maintenance work. In transition zones,local track irregularities easily occur due to differential settlement of structures or sudden change of the support rigidity causing various troubles of the track (hanging sleepers,ballast crush,mud pumping,fatigue of track parts,etc.). Furthermore, transition zones are weak against disasters, especially major earthquakes.Based on the above-mentioned problems,w e expect to discuss the following keywords in the workshop:"High-speed lines" , "Heavy haul" , "Anti-seismic structures" , "Measure for existing lines" , "New track system for transition zone" and etc.


PROGRAM
Chair: Dr. Sofia Costa D'Aguiar (SNCF)
16:00-17:30 The state of the art
Prof.Peter Woodward (Heriot-Watt University, UK)
Prof. Konstantinos Giannakos (SALFO & Associates SA, Greece)
Dr. Yasuo Watanabe (East Japan Railway Company, Japan)
Dr. Kenji Watanabe (Railway Technical Research Institute, Japan)
17:30-18:00 Discussion