Rate of Subsidence Due to Primary Consolidation on Cileles Village, Jatinangor Subdistrict

Abstract

Jatinangor is an area of education in Sumedang Regency. Because many educational institutions established in this area, Jatinangor had a high level of infrastructure development. Soil plays an important role in determining the security level of infrastructure built on it. Imposition on the surface due to building load can have an impact on land subsidence. This study aims to determine the engineering properties of soil in research area, so that can know the rate of subsidence due to primary consolidation because of building load. The engineering properties of soil obtained from laboratory tests, such as unit weight, moisture content, void ratio, porosity, specific gravity, coefficient of permeability, angle of internal friction, cohesion, preconsolidation pressure, coefficient of consolidation, compression index, and swelling index. Based on the calculation bearing capacity of soil for general shear failure condition with strip footings type, the value of allowable bearing capacity ranges from 0.433 kg/cm2 – 12.064 kg/cm2. Assuming the building load addition is equal to the value of allowable bearing capacity, within 1 year the land subsidence is about 0.43 cm - 11.37 cm.