HUBUNGAN DAYA DUKUNG AKSIAL PONDASI TIANG TUNGGAL PADA TANAH LEMPUNG

Abstract

The bearing capacity of the pile foundation is determined by attaching the pile with the ground and end bearing. At the time of such erection, the bearing capacity value of each pile can be known by testing the axial force on the pile. PDA test is one of the ways to test. This study aims to find an equation of the bearing capacity based on the PDA result by using SPT data, that based on laboratory data by using Finite Element Method (FEM) in Ngemplak, Boyolali. The implementation of the PDA test can be approached with the bearing capacity of the SPT data test results and the Finite Element Method (FEM) of the correlation value so that economically it is expected to be as efficient as possible the project cost. This research uses secondary data from the field, and then they will be analyzed by using a statistical method to get the simple linear regression equation other statistical tests such as linear test, normality test, t-test and homogeneity test. By using a statistical method, in clay, the equation of this type of bearing capacity was Qu(PDA) = 1,683*Qu(SPT)-904,26 based on SPT data in Briaud method, et Al. (1985) with a correlation coefficient of 81.44 %.