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La Conchita Landslide: Case History and Remedial Measures
In the past two decades major landslides devastated the town of La Conchita, California. The January 2005 landslide was a debris flow that killed 10 people, and damaged 36 residential homes. The 2005 landslide mobilized the south flank of a larger landslide that occurred in March 1995, and destroyed 9 homes. La Conchita is an important case history because the 2005 landslide was largely a consequence of decisions taken after the 1995 failure. It shows the importance of good engineering recommendations (including slope winterization) and the central role of owners and government agencies. During the last three decades, the author has made detailed observations of the slopes at La Conchita, performed subsurface and laboratory investigations, and conducted numerical modeling and conventional slope stability analyses whose principal aim was to understand the conditions and failure mechanisms of the 1995 and 2005 slope instabilities. This article discusses the history of the site, and remedial schemes (e.g., winterization, grading, and dewatering) to reduce the landslide hazards to the town of La Conchita.
La Conchita Landslide: Case History and Remedial Measures
In the past two decades major landslides devastated the town of La Conchita, California. The January 2005 landslide was a debris flow that killed 10 people, and damaged 36 residential homes. The 2005 landslide mobilized the south flank of a larger landslide that occurred in March 1995, and destroyed 9 homes. La Conchita is an important case history because the 2005 landslide was largely a consequence of decisions taken after the 1995 failure. It shows the importance of good engineering recommendations (including slope winterization) and the central role of owners and government agencies. During the last three decades, the author has made detailed observations of the slopes at La Conchita, performed subsurface and laboratory investigations, and conducted numerical modeling and conventional slope stability analyses whose principal aim was to understand the conditions and failure mechanisms of the 1995 and 2005 slope instabilities. This article discusses the history of the site, and remedial schemes (e.g., winterization, grading, and dewatering) to reduce the landslide hazards to the town of La Conchita.
La Conchita Landslide: Case History and Remedial Measures
Pradel, Daniel (author)
Eighth International Conference on Case Histories in Geotechnical Engineering ; 2019 ; Philadelphia, Pennsylvania
Geo-Congress 2019 ; 290-300
2019-03-21
Conference paper
Electronic Resource
English
La Conchita Landslide: Case History and Remedial Measures
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