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Tunnels

Doug VanDine Snippet A

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Doug VanDine answers the question “What are you doing to keep out of trouble these days”? He describes his transition from being a geotechnical design engineer to a researcher and writer of geotechnical engineering history. His first publication gave a history of the Drynoch Landslide in BC, which has been moving for over 6,000 years.  He has also researched and published biographiesy of Robert Leggett, “ a father of geotechnical engineering in Canada” and Major Leslie Charles, who located much of the Hudson Bay Railway from The Pas to Churchill Manitoba a century ago.

Boro Lukajic Full Interview

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Geotechnical engineer Boro Lukajic immigrated to Canada after completing an engineering degree in what was then Yugoslavia.  He became fascinated about the Canadian Arctic – impressing a Canadian Immigration agent at the Canadian Embassy in Vienna by sharing this fascination – and so was delighted to spend his first assignment in Labrador working on the Churchill Falls hydroelectric power development. He recalls his mentors, including an engineer he met while doing his military service in Yugoslavia who ignited his interest in engineering, and Dr. Ray Benson at Acres Engineering who improved his abilities in hydropower engineering.  Mr. Lukajic worked as a consultant in the Canadian Arctic (Yukon, Northwest Territories, Northern Ontario), Latin America, Hong Kong, and the United Arab Emirates.  He describes a six-week visit to Colombia where the had to climb mountains in a jungle invested with snakes and scorpions! His biggest professional transition came in 1977 when he left Acres to join Ontario Hydro and experience project management. At Ontario Hydro, he switched to nuclear engineering, designing cooling water tunnels under Lakes Huron and Ontario. He reflects on changes to the profession, particularly the development of automated tunneling technologies like tunnel-boring machines and smart drill jumbos.

Kwan Yee Lo Full Interview

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Geotechnical engineer Kwan Yee Lo decided upon graduation in 1957 to do graduate research in soil mechanics at Imperial College London. His Masters of Science work was supervised by Professor Skempton, with Dr. Robert Gibson and visiting Professor Davis from the University of Sydney contributing significantly. In October 1959, he started at the Norwegian Geotechnical Institute, where he essentially was an assistant to Dr. Bjerrum there. He was encouraged by Cam Kenny, later Chair of the University of Toronto Civil Engineering Department, to emigrate to Canada, where he started working for Acres in 1961. His work there included design of the inlet and outlet structures of the Winnipeg Floodway. He then moved to the Ontario Department of Highways, where he tested a full-scale embankment to failure. He joined the University of Laval in 1965 and subsequently, in 1970, Western, where he worked in the areas of tunnels in soil and rock. His many projects included investigating distress at the Thorold Tunnel below the Welland Canal, which led to major changes in the approach to tunnel design in rock. He designed the intake and discharge tunnels at the Darlington Nuclear Plant – the in-situ stresses and time-dependent deformations predictions for the construction of the intake tunnel were sufficiently accurate that it was deemed unnecessary to drill boreholes in the lake or install extensive instrumentation for the discharge tunnel, realizing significant cost savings. He also worked on the Niagara Tunnel from Niagara Falls to Queenston and the Billy Bishop Airport Tunnel in Toronto. He and his graduate students developed means to strengthen clays using electrokinetic forces. He also contributed significantly to the Ontario Hydro (now Ontario Power Generation) Dam Safety Program, developing innovative methods to quantify the safety of 151 dams constructed before the Second World War.