Analisis Daya Dukung Pondasi Bore Pile pada Proyek Pembangunan Gedung Wahid Hasyim Apartmen Medan

Abstract

The foundation is the structure of the lower part of the construction of buildings that relate directly to the ground and is a very important work in a civil engineering work, because this foundation will carry and hold a load that works on it. In planning the foundation it is necessary to take into account the amount of the load received and the carrying capacity of the local soil. Every foundation must be able to support the load to the specified safety limit. The purpose of this study is to calculate the carrying capacity of bore pile foundations, where the bearing capacity of the foundation is calculated based on Standard Penetration Test (SPT) data using 2 methods, Meyerhoof Method and Reese & Wright Method. From the results of the analysis and calculation of bearing capacity of the SPT results with a depth of 10 m and a pole diameter of 80 cm, based on the Meyerhoof Method, the carrying capacity of a single pole (Qijin) was 194.747 tons, while using the Reese & Wright Method, the carrying capacity of a single pole (Qijin) was 163.95 tons. Based on the results of efficiency calculations with the Converse- Labarre Method, a combined Q (2 poles in the field) was obtained with the Meyerhoof Method of 350,934 tons, and using a combined Reese & Wright Q Method (2 poles in the field) of 295,438 tons. The results of the calculation of the axial load carried by the bore pile using the SAP 2000 application is P = 776,117 tons. From the data above it can be concluded that Q combined bore pile if only using 2 insecure poles against axial load of the building. But if you use 6 poles with the Meyerhoof Method where the combined Q is obtained at 899,934 tons > P = 776,117 tons, then the foundation is safe in carrying the load on it.