The Ottawa Geotechnical Group (OGG) is hosting their November Luncheon next Wednesday, November 17th. The presentation will be about the disaster engineering job done on the Goongoonup Railway Bridge in Perth, Australia, presented by Prof. Serge Leroueil from Universite Laval. See details below, and please rsvp asap!
- Date: Wednesday, Nov. 17, 2010
- Time: Registration at 11:15 (****SPECIAL EARLIER TIME****)
- 11:30: Full Hot Buffet Luncheon (****SPECIAL EARLIER TIME****)
- 12:15: Presentation (****SPECIAL EARLIER TIME****)
- Location: Hellenic Community Centre 1315 Prince of Wales Drive, Ottawa, Ontario
- Presentation: The Case of Goongoongup Railway Bridge, Perth, Australia
- Speaker: Professor Serge Leroueil
- Admission: $15 OGG members; $20 non-members; $10 students
- RSVP: Michel Timmons (OGGtreasurer@hotmail.com) by Noon November 15, 2010
Abstract of Presentation:
The Goongoongup Railway Bridge (GRB), in Perth, Australia, has been built in 1993-1995. It crosses the Swan River over 8 piers. In 2002, a displacement of 140 mm of the eastern abutment was measured and an independent report predicted at that time that it would be 300 mm by the end of the century and that the abutment piles would yield in 10 to 20 years. The owner of the bridge, the Public Transport Authority (PTA) of Western Australia, involved experts in structural and geotechnical engineering as well as an engineering firm to examine the situation. First assessment showed several current or potential problems: the bearing capacity of the abutment piles could be exceeded; the abutment bearings were at their limit; the concrete piles of the approach structure were cracked in their upper part and their capacity had to be examined; the raked piles of the closest pier to the abutment were subjected to soil settlement and could have yielded. PTA then decided to sue the geotechnical engineering firm, the general engineering firm and the pile contractor. After several years of analyses and mediation among the experts of the different parties, the case has been settled in October 2009.