Please use this identifier to cite or link to this item:
|Title:||Mean and variance of mobilized shear strength for spatially variable soils under uniform stress states|
Scale of fluctuation
|Source:||Ching, J., Phoon, K.-K., Kao, P.-H. (2014). Mean and variance of mobilized shear strength for spatially variable soils under uniform stress states. Journal of Engineering Mechanics 140 (3) : 487-501. ScholarBank@NUS Repository. https://doi.org/10.1061/(ASCE)EM.1943-7889.0000667|
|Abstract:||This study proposes a set of simple equations for the mean value and variance of the mobilized shear strength for spatially variable soil masses subjected to uniform stress states. These equations are fairly effective in explaining the complicated behaviors for the mobilized shear strengths, regardless of stress states (e.g., compression or shear), spatial variability patterns (e.g., isotropic or anisotropic), and inherent mean and variance of the random field. Two mechanisms that affect the behaviors of the mobilized shear strength are identified: (1) the averaging effect along the potential slip curves, and (2) the emergent feature of a critical slip curve. The emergence is associated with the slip curve with the minimum averaged strength. In any realization of the random field, it is not possible to know a priori the location of the minimum average; hence, it would not coincide with a prescribed average. It is shown that the well-known phenomenon of critical scale of fluctuation is the result of the trade-off between these two mechanisms. © 2014 American Society of Civil Engineers.|
|Source Title:||Journal of Engineering Mechanics|
|Appears in Collections:||Staff Publications|
Show full item record
Files in This Item:
There are no files associated with this item.
checked on Feb 14, 2018
WEB OF SCIENCETM
checked on Jan 16, 2018
checked on Feb 18, 2018
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.