Interpretation of Static Cone Penetration Test with Triaxial Test to Determine Undrained Shear Strength of Clayey Soil

Abstract

A series of static cone penetration tests and undrained triaxial tests is performed to determine undrained shear strength of clayey soil. The field static cone penetration test is conducted on Marine Clay Soil near Naygaon West, Mumbai. It will be very precise, if we able determine the undrained shear strength of clayey soil using field tests. Therefore, in this research, we have developed empirical relationship between the parameters of static cone penetration test and triaxial test, so that using the field parameters we can able to determine undrained shear strength of clay soil. Mainly the static cone penetration test gives end bearing, frictional resistance, and corresponding cone factor of clay soil for various depths, which are then related with the laboratory parameters like Atterberg’s limits and undrained shear strength of clay for the same depths []. From the empirical relationship between field parameters and laboratory parameters, we are able to develop coefficient called as cone factor K, which will help us to determine undrained shear strength of soil directly on site for similar types of clayey soil [].