Record Details

Evaluation of various pedo-transfer functions for developing soil-water characteristic curve of a silty soil

DSpace at IIT Bombay

View Archive Info
 
 
Field Value
 
Title Evaluation of various pedo-transfer functions for developing soil-water characteristic curve of a silty soil
 
Creator THAKUR, VKS
SREEDEEP, S
SINGH, DN
 
Subject hydraulic conductivity
unsaturated soils
bulk-density
model
silty soil
field tensiometer
dew point potentiameter
soilvision
soil-water characteristic curve
 
Description This paper describes development of the soil-water characteristic curve (SWCC) of a silty soil by measuring its matric suction Psi(m), corresponding to different gravimetric water contents w. To achieve this, a field tensiometer and a dew point potentiameter (WP4) were employed. For this soil, the SWCC was determined indirectly using the estimation algorithms known as pedo-transfer functions (PTFs), which are based on volume-mass properties and the grain-size distribution characteristics, and are available in a commercial database SoilVision. In addition to this, experimental results were used for developing the SWCC of the soil, using various fitting functions cited in the literature and available in the database. An attempt has been made in this technical note to demonstrate the usefulness of these three methods for obtaining the SWCC of the silty soil. The study reveals that the PTFs developed previously to estimate SWCCs match very well with the experimental results.
 
Publisher AMER SOC TESTING MATERIALS
 
Date 2011-07-17T08:07:05Z
2011-12-26T12:50:12Z
2011-12-27T05:36:18Z
2011-07-17T08:07:05Z
2011-12-26T12:50:12Z
2011-12-27T05:36:18Z
2007
 
Type Article
 
Identifier GEOTECHNICAL TESTING JOURNAL, 30(1), 25-30
0149-6115
http://dspace.library.iitb.ac.in/xmlui/handle/10054/4667
http://hdl.handle.net/10054/4667
 
Language en