Journal
ENGINEERING GEOLOGY
Volume 183, Issue -, Pages 315-323Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.enggeo.2014.09.004
Keywords
Probabilistic analysis; Slope stability; LEM; FORM; Spatial variation; Local failure
Funding
- Nanyang Technological University (NTU) of Singapore
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This paper presents a probabilistic study of the out-plane failure mode of long embankments by first-order reliability method (FORM) and limit equilibrium method (LEM). The uncertainty and longitudinal spatial variability of soils that are deemed the most important factors producing the 3-D failure modes are considered in the probabilistic analysis. The longitudinal (out-plane) spatial variation of undrained shear strength is modeled by both spatial-averaging approach and spatial-autocorrelation approach. Comparisons are made between the two methods. For a long earth embankment, the local 3-D failure with a probabilistic critical width is investigated. (C) 2014 Elsevier B.V. All rights reserved.
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