DESIGN OF RAFT-PILE FOUNDATION AND DIAPHRAGM WALL WITH GROUND ANCHOR SETIABUDI 27 APARTMENT BANDUNG PROJECT

• Main Author: Auliadewinta, Thifa
• Format: Final Project
• Language: Indonesia
• Subjects: Teknik sipil
• Online Access: https://digilib.itb.ac.id/gdl/view/40173
• Institution: Institut Teknologi Bandung

Design of Setiabudi 27 Apartment consists of 13 floors of apartment buildings with 3 basement floors as parking lots and machine area. This final project aims to design and analyze a foundation system that can bear the load of the structure. In addition, design of diaphragm wall system is conducted to provide safety during basement excavation. Two foundation design alternative have been conducted consists of an analysis of the bearing capacity of the raft foundation and the bored pile foundation. The design of raft foundation aims to obtain a raft design that is able to withstand axial loads from the upper structure. While the design of the bored pile foundation aims to obtain a pile foundation configuration that has a bearing capacity against lateral loads of the structure and tensile axial loads due to uplift force. The design of the foundation design must satisfy the design criteria which is tolerable settlement, limited deformation, and foundation safety factors. Diaphragm wall design is intended to resist 13 meters deep excavation (3 basement floors). The analysis was calculated using PLAXIS-2D considering staged construction modeling, wall installation, 5 excavation stages, and 2 ground anchor installation stages. Thickness of the diaphragm wall is designed to be 0.6 meters and 20 meters depth from the ground surface. The ground anchors are installed at the elevation of -6 meters and -10 meters with specified prestressed forces. The design of diaphragm wall reinforcement has been designed based on positive moment, negative moment, and shear force that occur in the diaphragm wall. The design results attached in detailed design documents, detailed drawings, and technical specifications.