Investigation of relationship between cone penetration test and unit weight in cohesive soil (Study case: Gunung Anyar District)

Abstract

Cone Penetration Test or CPT is one of soil investigation which is used to determine the mechanical properties of soil i.e., cone resistance and sleeve friction. Since several decades ago, CPT is often used as a common thread to determine the physical properties of soil such as soil unit weight of soil, soil behaviour type, etc. Thus, empirical approaches have been developed from various countries. However, these empirical approaches are not the same as the condition in Indonesia. Therefore, it is necessary to obtain and develop the suitable correlation for the type of cohesive soil. In this study, primary and secondary data were carried out from Gunung Anyar area. From statical analysis result, the regression shows less than 60% similarity of the model. In addition, the result of this study found that silt and clay soil types were found to dominate in Gunung Anyar area.