Abstract:
This study was undertaken to develop and test the mechanics of penetration equipment for predicting soil resistance under different conditions. Penetration tests were carried out in clay loam soil at different moistures and densities with a penetrometer of 0.115 inch diameter and a cone angle of 60 degrees. The resistance of soil was found to increase linearly with the density of soil at different moistures and decreased with the moisture of soil generally following a quadratic relationship at various densities under nondrying conditions. The prediction equation for the penetration resistance of soil, derived from the analysis of forces acting on the penetrometer, was found to be a function of depth of penetration, soil density cohesion(c), angle of internal friction soil to metal friction (µ), and penetrometer diameter. The soil strength parameters ( c, Ø and µ) were determined with the help of the shear box The parameters were substituted in the prediction equation to predict the resistance of soil. The mean value of the percentage differences between the measured and predicted values of resistance was computed as -27.88 percent.
Page(s):
119-128
DOI:
DOI not available
Published:
Journal: Pakistan Journal of Agricultural Sciences, Volume: 10, Issue: 1--4, Year: 1973