scholarly journals Comments on “A new method of slope stability analysis considering progressive failure, by Onishi and Jiang, J. of the Jpn. Landslide Soc., Vol.52, No.3, 113-122”

2016 ◽  
Vol 53 (4) ◽  
pp. 141-144
Author(s):  
Mitsuya ENOKIDA
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Progressive Failure ◽  
Slope Stability Analysis ◽  
New Method

Stochastic stability analysis of a test excavation involving spatially variable subsoil

2006 ◽  
Vol 43 (10) ◽  
pp. 1074-1087 ◽  
Author(s):  
Yu-Jie Wang ◽  
Paul Chiasson
Keyword(s):  
Shear Strength ◽  
Stability Analysis ◽  
Slope Stability ◽  
Spatial Variability ◽  
Progressive Failure ◽  
Soft Clay ◽  
Stochastic Modelling ◽  
Undrained Shear Strength ◽  
Slope Stability Analysis ◽  
Undrained Shear

A stochastic slope stability analysis method is proposed to investigate the short-term stability of unsupported excavation works in a soft clay deposit having spatially variable properties. Spatial variability of undrained shear strength is modelled by a stochastic model that is the sum of a trend component and a fluctuation component. The undrained shear strength trend, which is also spatially variable, is modelled by kriging or a random function. Slope stability analyses are performed on the stochastic soft clay model to investigate the contribution of spatial variability of undrained shear strength to a disagreement among high factors of safety computed from deterministic methods for slopes that have failed. Probabilities of failure as computed from the stochastic analyses give a better assessment of failure potential. Probability of failure values also correlate with time delay before failure. This phenomenon may be related to progressive failure or creep and to pore pressure dissipation with time.Key words: slope stability analysis, failure probability, spatial variability, stochastic modelling, geostatistics, vane tests, sensitive clay.

A New Method for Detemining Strength Parameters for Slope Stability Analysis

Landslides ◽  
1996 ◽  
Vol 33 (3) ◽  
pp. 1-7_1
Author(s):  
Akira SANO ◽  
Toshiyuki MITACHI ◽  
Masafumi OKAWARA
Keyword(s):  
Stability Analysis ◽  
Slope Stability ◽  
Slope Stability Analysis ◽  
New Method ◽  
Strength Parameters
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