Identification of Soil Bearing Capacity for Polinela's New Campus Road Trace Planning using Dynamic Cone Penetrometer Test

Abstract

Along with the development of Polinela's campus followed by an increase in the number of students, a wider campus area is also needed to accommodate all lecture and practical activities at Polinela. Before starting the construction of buildings and other infrastructure, it is necessary to build a connecting road to access the points of development locations to be more connected. In road planning, it is required to investigate the bearing capacity of the subgrade first because it is the most crucial part of supporting road construction. This study aimed to measure variations in the value of the bearing capacity of the subgrade as the pavement's foundation. This study uses the Dynamic Cone Penetrometer Test (DCPT) to obtain predictive results from the bearing capacity of the subgrade in the form of the California Bearing Ratio (CBR) value. From six sampling points, the maximum CBR value was obtained at site 1 of 6.11% at a depth of 42 mm, site 2 of 1.21% at a depth of 365 mm, site 3 of 0.95% at a depth of 118 mm, site 4 of 2.08% at a depth of 535 mm, site 5 of 2.25% at a depth of 275 mm, and site 6 of 3.01% at a depth of 101 mm. The CBR value of the five points that did not reach the 6% standard was due to the location being cassava and corn plantations with subgrade soil that had undergone tillage so that the ground became loose and was no longer classified as the original soil.