FN Archimer Export Format
PT J
TI Mechanical behaviour of gas-charged fine sediments: model formulation and calibration
BT 
AF SULTAN, Nabil
   GARZIGLIA, Sebastien
AS 1:1;2:1;
FF 1:PDG-REM-GM-LES;2:PDG-REM-GM-LES;
C1 IFREMER, REM GM LES, Plouzane, France.
C2 IFREMER, FRANCE
SI BREST
SE PDG-REM-GM-LES
IN WOS Ifremer jusqu'en 2018
IF 1.868
TC 33
UR https://archimer.ifremer.fr/doc/00245/35621/34133.pdf
   https://archimer.ifremer.fr/doc/00245/35621/34155.pdf
LA English
DT Article
DE ;compressibility;constitutive relations;offshore engineering;shear strength
AB Multi-phase fluid conditions encountered in geotechnical and geo-environmental problems have led to the development of models that account for the influence of gas solubility and compressibility on the behaviour of soils of various grain sizes. Yet, no consideration has been given to damages related to the nucleation and growth of gas bubbles in fine-grained soils. The purpose of this paper is to present a Cam Clay based constitutive model extended to incorporate such detrimental effects on gassy soils. This is achieved by deriving an analytical expression relating the preconsolidation pressure to a damage parameter dependent on the gas content. That expression is coupled to a deviatoric yield surface accounting for inherent and stress-induced anisotropy. Comparisons of simulations and experimental results attest that introducing a single additional parameter to a conventional Cam Clay type model allows key behavioural features of gas-charged fine sediments to be reproduced. 
PY 2014
PD NOV
SO Geotechnique
SN 0016-8505
PU Ice Publishing
VL 64
IS 11
UT 000345842800001
BP 851
EP 864
DI 10.1680/geot.13.P.125
ID 35621
ER

EF