DESIGN OF BORED PILE FOUNDATION AND DIAPHRAGM WALL USING GROUND ANCHOR SUPPORT SYSTEM ON THE TERRACE APARTMENT BUILDING IN CIBADAK, BANDUNG

• Main Author: Akhtiar Daenulhaq, Aulia
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik sipil
• Online Access: https://digilib.itb.ac.id/gdl/view/54237
• Institution: Institut Teknologi Bandung

The spatial needs to conduct commercial activities or reside becomes a topic that needs to be noticed, especially in bigger cities in Indonesia such as Bandung. According to the information released by Badan Pusat Statistik Indonesia, Bandung’s total population had reached 2,5 million in 2018 with an average growth 0,3%-0,4% or around 7-9 thousand per year. Therefore, high-rise buildings that has a multifunctional value such as The Terrace Apartment could become one of the solutions to fulfill those spatial needs. In designing The Terrace Apartment, there are two main focus of the bottom structure, which is the design of the foundation and the design of the basement. Both of these structures need to be designed to accommodate the loads working on the building so The Terrace Apartment could be functional. The Terrace Apartment used pile foundations bored piles to accommodate a 10-story structural load. The lateral capacity analysis was done using ENSOFT software L-PILE and group pile capacity analysis was carried out using ENSOFT software GROUP. Besides capacity analysis, the settlement formed in the foundation was also analyzed. The basement in The Terrace Apartment consists of two (2) stories with the height of 3,1 meters and 6,7 meters respectively with a total excavation up to 7,5 meters so a diaphragm wall was needed and equipped with ground anchor support system. The analysis of excavation and basement wall was done using PLAXIS 2D with hardening soil model. According to the analysis, the dimension of the diaphragm wall needed is 14 meters with a thickness of 0,6 meters to accommodate the basement and fulfilling the stability and deformation requirements.