GEOTECHNICAL DESIGN OF BANDUNG FASHION HUB

• Main Author: BAYU PRATAMA, ANDREAS
• Format: Final Project
• Language: Indonesia
• Online Access: https://digilib.itb.ac.id/gdl/view/67125
• Institution: Institut Teknologi Bandung

The Bandung Fashion Hub building is planned as a center for activities related to the fashion industry that can accommodate fashion activist to express their work, exchange ideas and interact with each other. Geotechnical design of the building includes retaining walls, hoisting, and deep foundation group. The retaining wall of the soil is planned using a 600 mm thick diaphragm wall with a height of 16 meters. The walls are supported by a layer of ground anchor at a depth of 4 meters. Ground anchor is planned temporarily using 6 pieces of strand tendon, a grout diameter of 20 cm, and is installed with a horizontal space of 4.6 meters. The walls and haulers are designed to accommodate basement excavations with stages: 1) Wall installation & Construction load, 2) -4.5 meters excavations, 3) ground anchor installations, 4) Final excavations up to an elevation of -8.60 meters. Wall analysis was carried out on the short-term and long-term conditions of the construction period, as well as the permanent conditions of earthquakes, floods, and normal groundwater levels. The analysis was performed using finite element software PLAXIS with a constructive model of Hardening Soil. The results of the analysis showed the largest deformation of the lateral wall by 39 mm in the final long-term excavation conditions of the construction period, a maximum shear force of 281 kN / m and a maximum moment of 229 kNm / m in permanent flood conditions. The foundation is designed for basement area and the columns of the 1st floor that are outside the basement tread. Bored pile foundation of 1200 mm diameter is used for columns, and 1600 for sliding walls. The poles are arranged in groups consisting of 3 configurations, namely P4, P6 and P8. The foundation was analyzed for capacity based on 3 loading conditions, namely gravity, nominal earthquakes, and strong earthquakes. This analysis combines manual calculations and LPILE, GROUP, and SPColumn software calculation. Also taken into account the need for tie beams, the settlement of pile group, and its reinforcement.