Daya dukung pondasi tiang pancang pada daerah reklamasi laut di Makassar : studi kasus proyek Twin Tower

Abstract

The calculation of the ultimate bearing capacity (Qu) in the design stage is often different than actual bearing capacity measured by load test, especially for “non-textbook” soils or clean sand, such as calcareous sand. In this case study, a comprehensive study was conducted regarding the bearing capacity of the reclaimed soil in the form of calcareous sand soil with medium to dense soil density in Makassar. The foundation type used is square driven pile 50 cm x 50 cm. This study is conducted to obtain shaft bearing capacity of the driven pile embedded in calcareous sand from static load test, dynamic load test, and back analysis using finite element method. The analysis of this research uses the empirical method/manual calculation (empirical) of the correlation with the test method in the field in determining the carrying bearing capacity. The output generated from back analysis are bearing capacity, load transfer, and behaviour of driven pile embedded in calcareous sand.