#TITLE_ALTERNATIVE#

• Main Author: AJI SATRIYO (NIM: 22014022), NUGROHO
• Format: Theses
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/29751
• Institution: Institut Teknologi Bandung

<p align ="justify">Area development concerns with optimal land use and reduction of geological disaster risks. The coastal area of south Bali is prone to land settlement hazard. In order to mitigate the risk, it is important to understand the depositional environment of the area related to its bearing capacity and geological hazard risk. The aim of this research is to understand the subsurface depositional and quantifying its bearing capacity. Quantitative modeling was carried out to obtain the sediment bearing capacity of Pendungan area, Bali. Methods used in this research were observation of borehole cores, identification of CPTu curves pattern, sediment index property test, soil strength laboratory and bearing capacity analysis. Based on the lithologic association, CPTu curve pattern and grain size analysis, there are three facies developing in the study area with different bearing capacity values. The flood plain facies is composed of clay with shells remnants. The sediment type in the flood plain facies is OH with fine content of 65 – 85%. The CPTu curve of this facies shows cylindrical pattern with qc 0.5 – 5 MPa and N-SPT of 2 – 20. The fluvial facies consists of clay and sand. The clay is stiff and gravelly, and fine to coarse sand with no traces of sea shells. The sediment type in the fluvial facies is CH, SP and SM with fine content of 12.47 – 79.86%. The fluvial sand has uneven pattern, symmetrical and fining upward curve with qc 8 – 17MPa and N-SPT 24 – 68. The beach ridge facies is composed of fine to coarse sand with no traces of sea shells. The sediment type in the beach ridge facies is GW, SP, and SW with FC of 3.84 – 21.96%. The CPTu curve has upward coarsening pattern with qc 2 – 13 MPa. The beach ridge sand has lower N-SPT value of 8 – 52 compared that of the fluvial sands. Generally the beach ridge sand has higher bearing capacity for shallow foundation than the fluvial clay. Meanwhile, the flood plain facies has the lowest bearing capacity.<p align ="justify">