CGRG Bibliography of Canadian Geomorphology
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Author : Carter, T.G.; Maher, M.L.J.; Annan, A.P.; and Richard, J.A.
Date : 1986
Title : Specialized investigation techniques for defining karstic cavities
Publication : Proceedings of the Environmental Problems in Karst Terranes and Their Solutions Conference. National Water Well Association, Dublin; OH.
Issue :
Page(s) : 345-367
Abstract
Blasting near the access road to a new airport for St. Anthony, Newfoundland, Canada, exposed a large open cavity. The site investigation program was highly successful and cost effective. The systematic integrated approach maximized the site coverage and minimized the investigation time. Geological mapping and air photo interpretation indicated the extent of karstic features and thrust faulting in the vicinity of the airport. Geophysical surveys provided the only means to effectively and efficiently examine the subsurface conditions over the entire area of the airport site within the required time. Radar was effective in mapping open and clay filled bedding planes to depths in excess of 20 m in most areas of the airport site. Gravity work provided additional control on the extent of the major fracture zone at the Airport Terminal Building and corroborated radar data interpretations. Diamond drilling provided the essential link between the geophysical interpretation and the geological conditions as well as quantitative rock quality parameters. Information was collected in time for design modification prior to completion of construction. Site construction excavations confirmed the overall investigation conclusions
Bibliography of Canadian Geomorphology