FN Archimer Export Format
PT J
TI Evaluation of the risk of marine slope instability: A pseudo-3D approach for application to large areas
BT 
AF SULTAN, Nabil
   COCHONAT, Pierre
   BOURILLET, Jean-Francois
   CAYOCCA, Florence
AS 1:;2:;3:;4:;
FF 1:PDG-DRO-GM-SEDIMENTS;2:PDG-DRO;3:PDG-DRO-GM-SEDIMENTS;4:PDG-DRO-GM-SEDIMENTS;
C1 IFREMER, Lab Environm Sedimentaires, F-29280 Plouzane, France.
C2 IFREMER, FRANCE
SI BREST
   SIEGE
SE PDG-DRO-GM-SEDIMENTS
   PDG-DRO
IN WOS Ifremer jusqu'en 2018
IF 0.444
TC 18
UR https://archimer.ifremer.fr/doc/2001/publication-698.pdf
LA English
DT Article
CR GMO1
   ZAIANGO1
   ZAIANGO2
BO Le Suroît
   L'Atalante
DE ;Shear strength;Slope stability;Safety factor;Marine sediment;Finite element;Finite difference;Failure
AB This article presents a methodology developed to evaluate the instability of submarine slopes that extend over a large area. Special attention was paid to (1) the complex geometry (bathymetry) and the expanse of the slope, (2) the heterogeneity of the sediment, and (3) the distribution of the pore pressure. The safety factor was considered as a spatially varying quantity. The General Formulation (GLE, Fredlund and Krahn 1977), which fully satisfies equilibrium conditions, was used for evaluating the stability of the marine slope. The submarine slope failure, which occurred on 16 October 1979 during the construction of the new Nice airport, was studied in order to test the developed model. Geotechnical parameters were taken from experimental tests carried out by IFREMER on 19 cores extracted at different depths (from 27 m to 1300 m) (Cochonat, Bourillet and Savoye, 1993; Mulder et al., 1994). Many scenarios were proposed in order to explain the cause of the Nice slope failure (Habib, 1994). In this article, two of those scenarios were tested. Simulation results are presented and discussed.
PY 2001
PD APR
SO Marine Georesources and Geotechnology
SN 1064-119X
PU Taylor & Francis
VL 19
IS 2
UT 000169792200003
BP 107
EP 133
DI 10.1080/10641190120611
ID 698
ER

EF