Analisis Daya Dukung dan Penurunan Pondasi Bored Pile Berdiameter 0,5 Meter dengan Metode Analitis dan Metode Elemen Hingga

Abstract

In the construction process of the CWS Pier at Tanjung Priuk Port using a bored pile foundation. The purpose of this research is to analytically find the axial bearing capacity of the bored pile foundation. The methods used include NSPT data, Luciano Decourt method, Reese and Wright method, and application of finite element method with the help of software. This research also analyzes the lateral bearing capacity using the Brooms method, the bearing capacity of the bored pile through PDA testing data, and the elastic settlement of single and group piles. From the calculations that have been carried out on the bored pile foundation which has a diameter of 0.5m and a depth of 26 m. It is known that the weight calculated using NSPT data with the Luciano Decourt method is 105.813 tons, while using the Reese and Wright method is 105.159 tons, and through the finite element method using Plaxis 2D software the result is 111.15 tons. Based on data from the PDA, it is known that Qa is 112.8 tons. The results of the lateral bearing capacity calculation using the Brooms method are 81.225 tons and 78.161 tons graphically. The elastic settlement is 7.82 mm, while using the finite element method using the program is 13.45 mm, and the result from PDA is 8.6 mm. The settlement of the pile group reached 11.065 mm. Differences in bearing capacity and settlement values may vary due to the depth analyzed, the technique used, and the depth of the pile.