Join us at GEOQuébec 2015

September 11, 2015

Klohn Crippen Berger is proud to sponsor GEOQuébec 2015. The 68th Canadian Geotechnical Conference and 7th Canadian Permafrost Conference is being held at the Convention Center in Québec Canada, from September 20-23, 2015. « Challenges from North to South » is the theme at this year's conference. It reflects the diversity of complex challenges that the geotechnical, cold regions engineering and permafrost communities need to address to support sustainable economic development. KCB will presenting at the following technical sessions: Steepbank River Valley Geomorphological and Geological Categorization Presented by: Joanna Chen, Ph.D, P.Eng. Abstract: Natural terrain hazard assessments require the development of geomorphological and engineering geological maps to understand the past and current performance of the natural river valley slopes. This paper outlines the approach adopted for the geomorphological and engineering geological inventory maps developed for the natural riverbank slopes along the Steepbank River Valley escarpment in Fort McMurray, Alberta. The inventory maps document the location and spatial distribution of the observed major slope movements and geological features as well as the current physical conditions of the River Valley escarpment slopes. These maps provide an understanding of the nature and magnitude of the various potential hazards in the natural slopes and are considered to be representative of baseline conditions against which future conditions can be compared. The available aerial photographs and LiDAR-derived topographic contours indicate that on-going regression of the escarpment slopes is occurring as a result of natural processes. Date/Time: Monday, September 21 at 11:45am Session: Landslides and Slope Stability I Room: 205BC Characterization of glacial tills from an excavation near Fort McMurray, Alberta Presented by: Andrew Bayliss, MSc. P.Eng Abstract: An excavation conducted beneath the north starter dyke of the Sand Cell 2 Tailings Dam has permitted the geological mapping and geotechnical characterization of complex sub-glacial assemblage composed of glacial tills and rafted bedrock that overlie an infilled, tunnel valley, known as the Kearl Channel. The mapping data was supplemented with borehole and laboratory testing data from drilling programs and geographical information system data from the Alberta Geological Survey. This study concluded that the moraine was composed of a sub-glacial traction till, analogous to the Firebag Till, and rafted bedrock derived from the Clearwater Formation. The moraine was overlain and interbedded by deformed sands and gravels indicative of a sub-glacial braided canal system. Updated interpretations of the glacigenic units are proposed based on recent developments in glaciological studies. Date/Time: Monday September 21 at 4:45pm Session: Rock Mechanics and Engineering Geology III Room: 207