Consolidation parameters evaluation of cohesive soil in lianganggam, kalimantan Indonesia using cpt data

The cone penetration test (CPT) has emerged as most widely used for obtaining soil profile and soil properties. In several studies showed that CPT data can also be used for the soil settlement calculation. However these calculations have a different parameter for each location. The main objective of this study was to compare and evaluate the results of settlement using laboratory testing data and consolidation measurement using CPT data of soft clay soil in some area in Indonesia. Furthermore, this study also conducted to find the parameter of CPT settlement (m) that appropriate with the soil condition in this study area and also to analyze the value the horizontal coefficient (Ch) of PVD installation that installed in the field. The Pre-loading with trial embankment of soil subgrade is considered in this study. This study uses a several field soil data CPT test, consolidation laboratory test and settlement plate measurement. The area of study in this research is in access road construction project of Trisakti harbor in Lianganggam, Kalimantan, Indonesia. The results obtained from this study are the horizontal coefficient of PVD (Ch) for the soil in this area is measures as 5 times higher than the vertical coefficient of PVD (Cv) measurement from laboratory data. In addition, the appropriate parameter of settlement using CPT data () is 2.77 obtained by back calculation method in trial embankment and settlement plate result. These results are slightly different from the results of similar research but at a different location in another country.