CORRELATION BETWEEN DYNAMIC CONE PENETROMETER INDEX (DCPI) AND RELATIVE DENSITY OF SOIL FOR A LOCALLY FABRICATED APPARATUS

Abstract

In this dissertation, the analysis of dynamic cone penetration test in relation to various soil parameters and properties has been evaluated. Dynamic cone penetrometer testing can be applied to the characterization of soil properties in many ways. One of the strong points in favor of the dynamic cone penetrometer device is in its ability to give a continuous record of relative soil strength/properties with depth. By plotting a graph of dynamic cone penetration index (DCPI) vs. depth for the testing area, a user can observe a profile with varying layer depths, thicknesses, and strength conditions. In this study, an attempt is made to develop a relation between DCPI and relative density, degree of compaction, shear strength parameters, namely, angle of internal friction of soil has been obtained. For that dynamic cone penetrometer test is performed in laboratory conditions for sand filled of known relative density in a chamber. An attempt is made to establish a relation between relative density index and CBR is obtained with the help of CBR verses DCPI correlation, given by ASTM D6951/D6951M-09. Performing the dynamic cone penetrometer test and core cutter method of density measurement in field conditions does the verification of correlation.