P.A.M. Agung, D.J. Siddiq, A. Pradiptiya, S. Sutikno, A.W. Adinegara, M.F.R. Hasan
The stability analysis of pile foundations is necessary to ensure buildings' structural integrity and safety during seismic events. This study aims to analyze the stability of the foundation in Project X under combined axial and lateral forces. Earthquake risk analysis used point source and gross source methods, incorporating real-time earthquake data from the last 50 years. This analysis utilized shallow earthquake data (D < 33 km) and earthquakes with magnitudes greater than 5. The upper structure system was modelled using ETABS 2018, while the foundation analysis was performed using SPT data and soil parameter correlation. The results of the foundation stability analysis at a depth of 14 meters, based on the applied forces and using AS 19-A, indicate the appropriate foundation configurations. Stable configurations include piles with dimensions of 20×20 cm (minimum of 5 piles at 3D spacing), 25×25 cm (minimum of 4 piles at 3D spacing), and 30×30 cm (minimum of 4 piles at 2.5D to 3D spacing). The foundation is stable because Pmaks < Qu aksial and Hmaks < Qu lateral. Besides that, the total settlement that occurred was <25.4 mm, and lateral movement was <12.7 mm. © Published under licence by IOP Publishing Ltd.
Department of Civil Engineering, Politeknik Negeri Jakarta, Depok, 16425, Indonesia; Graduate School, Universitas Brawijaya, Malang, 65145, Indonesia
