ANALYSIS OF BORE PILE FOUNDATION CAPACITY IN HIGH STOREY BUILDING AT PULOMAS, EAST JAKARTA

Abstract

Foundation is very important for building as foundation is the lowest part of the building that transmits the building load to the soil or rock that is on the ground underneath. This study aims to determine the comparison of ultimate bearing capacity of bore pile foundation using several methods. Based on CPT data using Aoki & De Alencar method, the ultimate bearing capacity for bore pile foundation with diameter 80 cm are 187.74 ton and 339.76 ton, with diameter 100 cm, the ultimate bearing capacity are 285.17 ton and 522.53 ton. Using Meyerhoff method on CPT data, the ultimate bearing capacity for 80 cm diameter foundation are 986.96 ton and 767.05 ton, for 100 cm diameter foundation, the ultimate bearing capacity are 1542.12 ton and 1198.51 ton. Based on SPT data using Reese & Wright method, the ultimate bearing capacity are 994.26 ton and 921.76 ton for 80 cm diameter and for 100 cm diameter are 1861.53 ton and 1628.89 ton. The ultimate bearing capacity using Luciano Decourt method are 1361.54 ton and 1192.98 ton for 80 cm diameter. For 100 cm diameter, the ultimate bearing capacity are 1861.53 ton and 1628.89 ton. Lastly, there is O’Neill & Reese method which have 569.23 ton and 584.22 ton for 80 cm diameter, 729.77 ton and 749.55 ton for 100 cm diameter. The interpretation of Static Loading Test from Chin method has an ultimate bearing capacity 952.38 ton. The interpretation of Static Loading Test from Mazurkiewicz method have lower ultimate bearing capacity than Chin method which is 800 ton.