Monitoração de estacas e o problema de tensões na cravação

Abstract

Firstly, a brief review of the techniques available abroad for monitoring and interpreting prile driving are presented. Secondly, the monitoring procedures developed in this thesis, together with a strain transducer designed and built at COPPE are presented. The monitoring experiences in four pile driving jobs are described, together with discussion and possible interpretation of the results. This thesis also deals with the question of stresses developed at the pile top upon hammer impact. Three formulae available for the calculation of these stresses in concrete piles are examined and their predictions are compared with stresses measured in four jobs where pile driving monitoring was made.