A Soil Classification Analysis Using the USCS Method on Cikombong Merauke Road

Soil is the most important part in a construction such as buildings, roads and traffic loads because the soil functions as a support for construction. Soil consists of minerals, organic materials, and relatively loose deposits located above bedrock. In planning a construction, an investigation must be carried out on the soil classification, especially on the soil properties that can affect the bearing capacity of the soil, especially on the properties of the soil that support the construction load above it. This study aims to determine the classification, type and nature of the soil found on the Cikombong Merauke road using the USCS method. (Unified Soil Classification System). This study uses soil samples from 3 points (spots) located in the development area, especially in terms of construction so that an initial study is needed regarding soil classification so that the strength of the construction can be in accordance with local soil conditions. From the results of this study, fine grains were obtained from sample 1 which were retained in the pan with a retained weight of 12.35 grams, a retained cumulative of 100.00 grams and a retained cumulative value (%) of 100.00 grams. Sample 2 obtained a retained weight value in the pan of 25.40 grams and a cumulative (%) retained of 100.00 grams. And at point 3 obtained a retained weight of 27.75 grams and a cumulative retained of 100.00 grams. These values ​​can be stated that the classification of the soil is silty sand and very poorly graded, gravelly sand contains little or no fine grains at all which is given the symbol SP.