TY - JOUR
T1 - Probabilistic combined loading failure envelopes of a strip footing on spatially variable soil
AU - Cassidy, Mark
AU - Uzielli, M.
AU - Tian, Yinghui
PY - 2013
Y1 - 2013
N2 - Failure envelopes written directly in terms of the applied vertical, horizontal and moment loads are finding increased popularity in the design of shallow foundations. However, these are deterministically derived and assume a spatially homogeneous soil without any variation in properties. The spatially variability of soil strength under a strip footing is accounted for in the results of this paper through the Random Finite Element Method, which combines spatial variability analysis, finite element simulation and Monte Carlo simulation. A multitude of combined loading failure envelopes are derived from finite element analysis of a soil domain with randomly generated and spatially varying values. This has allowed the size and shape of the failure envelopes to be defined for distinct levels of their probability of occurrence. These provide guidance for the reliable design of strip footings on clays in heterogeneous soil conditions, and have particular application offshore where horizontal and moment loads can be proportionally large. © 2012 Elsevier Ltd.
AB - Failure envelopes written directly in terms of the applied vertical, horizontal and moment loads are finding increased popularity in the design of shallow foundations. However, these are deterministically derived and assume a spatially homogeneous soil without any variation in properties. The spatially variability of soil strength under a strip footing is accounted for in the results of this paper through the Random Finite Element Method, which combines spatial variability analysis, finite element simulation and Monte Carlo simulation. A multitude of combined loading failure envelopes are derived from finite element analysis of a soil domain with randomly generated and spatially varying values. This has allowed the size and shape of the failure envelopes to be defined for distinct levels of their probability of occurrence. These provide guidance for the reliable design of strip footings on clays in heterogeneous soil conditions, and have particular application offshore where horizontal and moment loads can be proportionally large. © 2012 Elsevier Ltd.
U2 - 10.1016/j.compgeo.2012.10.008
DO - 10.1016/j.compgeo.2012.10.008
M3 - Article
SN - 0266-352X
VL - 49
SP - 191
EP - 205
JO - Computers and Geotechnics
JF - Computers and Geotechnics
ER -