Abstract:
This paper presents the application of a recently developed method to estimate effective energy in pile driving. The main advantage of it is that the estimation does not need the hammer efficiency. Instead, It is just based on the pile measurements of permanent and elastic displacements (set plus rebound) during driving and a site-specific coefficient calibration. The article validates the methodology in a case study of steel pipe piles, with a diameter of 40 cm and their lengths varying between 20 m and 30 m, with open ends carried out on the banks of the Amazon River, northern Brazil. Through calibration of the key method parameter (?), its adequacy was verified to reproduce the transferred blow energy to the pile, employing that rational approach.