Estimation of Water Retention Curve of Granular Soils from Particle Size Distribution – a Bayesian Probabilistic Approach

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	Estimation of Water Retention Curve of Granular Soils from Particle Size Distribution – a Bayesian Probabilistic Approach
	Chiu, C.F.; Yan, W.M.; Yuen, K. V.
	2012-09-01
Source Publication	Canadian Geotechnical Journal
ISSN	1208-6010
Pages	1024-1035
Abstract	This study proposed two empirical relationships to estimate the parameters of van Genuchten’s formula for modeling the water retention curve from the particle size distribution. The relationships are determined by the Bayesian probabilistic method for selecting the most plausible class of models based on a database of 90 soil samples. The highest plausibility model among the selected relationships shows that the parameter alpha can be expressed as a first-order function of the particle size at 50% passing (d50) and parameter n is expressed as a third-order polynomial of the reciprocal of the standard deviation of geometric mean particle size (sigma_g). The predictability of proposed relationships for other soils outside the calibrated database is also presented. It is found that the model prediction is highly consistent with the measurements for sands. However it only matches well with the measurements in the low suction regime for soils with at least 20% of fines content.
Keyword	Bayesian analysis Particle size distribution Saturation Soil suction Unsaturated soils
Language	英語English
The Source to Article	PB_Publication
PUB ID	9556
Document Type	Journal article
Collection	GRADUATE SCHOOL
Corresponding Author	Chiu, C.F.
Recommended Citation GB/T 7714	Chiu, C.F.,Yan, W.M.,Yuen, K. V.. Estimation of Water Retention Curve of Granular Soils from Particle Size Distribution – a Bayesian Probabilistic Approach[J]. Canadian Geotechnical Journal, 2012, 1024-1035.
APA	Chiu, C.F.., Yan, W.M.., & Yuen, K. V. (2012). Estimation of Water Retention Curve of Granular Soils from Particle Size Distribution – a Bayesian Probabilistic Approach. Canadian Geotechnical Journal, 1024-1035.
MLA	Chiu, C.F.,et al."Estimation of Water Retention Curve of Granular Soils from Particle Size Distribution – a Bayesian Probabilistic Approach".Canadian Geotechnical Journal (2012):1024-1035.

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