THEORETICAL ANALYSIS OF CPT AND A PROPOSAL OF AN IDEA FOR ESTIMATING STRENGTH PARAMETERS

Abstract

This paper deals with the method of characteristics established as a direct method of solving cone resistance in c-φ soil. The bearing capacity of cones was analyzed under the condition of axial-symmetry obeying the Mohr-Coulomb failure criterion, considering cone roughness and the intermediate principal stress. The results of the analysis are represented in contour of the bearing capacity related to both cohesion and friction angle. In this paper, as an application of the theoretical analysis, an idea for estimating c and φ simultaneously by using two types of cone which has different tip angle was proposed.