Determination of relationship between standard penetration test and geotechnical parameters in Ahwaz soil

Abstract

ABSTRACT The present study is the result of more than 150 geotechnical investigations that were conducted over 2 years (from 2015 to 2016) on the Ahwaz soil (which is mainly composed of clay with low plasticity in different regions). The standard penetration test was performed at all the boring locations, and after preparing the undisturbed Shelby tube samples from different depths, the unconsolidated undrained triaxial (UU), Atterberg limits, in situ moisture content and grading tests were performed on all samples. All of the abovementioned parameters are presented for the Ahvaz soil, and the range of values of each of the parameters were investigated, and finally, the relationship between the modulus of elasticity and the standard penetration test was studied. The effect of different soil parameters and their contribution to the determination of soil elasticity modulus is another important result of this study. The most important result of this study could be the different classifications of soil elasticity moduli by using the sample Nspt values to estimate the elasticity moduli because the standard penetration test value has the highest correlation and the most significant relationship with elasticity moduli.