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Investigation of a landslide in Maskinongé, Québec

1999; NRC Research Press; Volume: 36; Issue: 6 Linguagem: Inglês

10.1139/t99-069

1208-6010

Denis Demers, Serge Leroueil, Jacques d'Astous,

Geotechnical Engineering and Analysis

Several first-time landslides occurred in the Maskinongé area, Quebec, during the summer, which is rather unusual. They have been studied in detail, including a site investigation. The results show the following: (i) piezocone tests indicate that the clay mass close to the slopes of precarious stability is softened; (ii) the failure surface develops within the softened zone; and (iii) three of the four landslides occurred during the summer period when pore pressures are low, indicating that failure could be due to fatigue phenomena.