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TitleApplication of optical fibre sensing real-time monitoring technology at the Ripley Landslide, near Ashcroft, British Columbia, Canada
AuthorHuntley, D; Bobrowsky, P; Zhang, Q; Zhang, X; Lv, Z; Hendry, M; Macciotta, R; Schafer, M; Le Meil, G; Journault, J; Tappenden, K
SourceGeoVancouver 2016: Conference program and abstracts, 69th Annual Canadian Geotechnical Conference - Programme de la conférence et résumés, 69ème Conférence annuelle canadienne de géotechnique; by Canadian Geotechnical Society; 2016 p. 102
Year2016
Alt SeriesEarth Sciences Sector, Contribution Series 20160238
PublisherCanadian Geotechnical Society
MeetingGeoVancouver 2016: 69th Canadian Geotechnical Conference - 69ème Conférence annuelle canadienne de géotechnique; Vancouver, BC; CA; October 2-5, 2016
Documentbook
Lang.English
Mediaon-line; digital
File formatpdf
ProvinceBritish Columbia
NTS92H/11
AreaAshcroft; Thompson River
Lat/Long WENS-121.5000 -121.2500 50.7500 50.5000
Subjectssurficial geology/geomorphology; stratigraphy; landslides; deformation; transportation; Ripley Landslide; geohazards; monitoring methods; risk management; infrastructure security; Phanerozoic; Cenozoic; Quaternary
ProgramMarine Geohazards, Public Safety Geoscience
LinksOnline - En direct (complete volume - volume complet, PDF, 11.6 MB)
AbstractAn international multi-year project is investigating and monitoring the Ripley Landslide, 7 km south of Ashcroft, British Columbia to better understand and manage landslides along Canada's western railway corridor. From 2013 to 2016, the China Geological Survey (CGS) and Geological Survey of Canada (GSC) collaborated to test and evaluate experimental fibre Bragg grating (FBG) and Brillouin optical time domain reflectometry (BOTDR) technologies on an active landslide for the first time in Canada. Innovative real-time monitoring systems were installed on a lock-block retaining wall that separates the Canadian National (CN) and Canadian Pacific Railway (CPR) tracks. This vital component of railway infrastructure crosses the southern extent of the main slide body; and was monitored with the aims of better understanding the deformation mechanisms and potential triggers for sudden movement; and managing the risks associated with railway operations. Monitoring data was processed on site then accessed by wireless transmitter from remote terminals at the CGS and GSC offices. Results, discussed in the context of interpretations from other physical surveys of the landslide, provide new insight into the nature and distribution of surficial earth materials, their stratigraphic relationships, internal structure of the landslide, and structural integrity of critical railway infrastructure. This study demonstrates that despite installation setbacks and extreme environmental conditions, optical fibre sensing real-time techniques are viable monitoring methods that can help ensure the safety and security of the railways, thereby reducing risks to public safety, the environment, natural resources and the economy.
Summary(Plain Language Summary, not published)
An international multi-year project is investigating and monitoring the Ripley Landslide, 7 km south of Ashcroft, British Columbia to better understand and manage landslides along Canada's western railway corridor. This study demonstrates that despite installation setbacks and extreme environmental conditions, optical fibre sensing real-time techniques are viable monitoring methods that can help ensure the safety and security of the railways, thereby reducing risks to public safety, the environment, natural resources and the economy.
GEOSCAN ID299371