Determination of axial bearing capacity of MEGA piles according to eurocode 7

Abstract

U radu je prikazan kratak pregled odredbi Evrokoda 7 za proračun aksijalne nosivosti šipova. Date su smernice i preporuke za proračun aksijalne nosivosti utisnutih MEGA šipova u skladu sa izabranim proračunskim pristupom prema nacionalnom prilogu za Evrokod 7 (Deo 1) u Srbiji i specifičnostima tehnologije izvođenja. Prikazana je uporedna analiza proračuna prognozne nosivosti MEGA šipova prema Evrokodu 7 i ranijem Pravilniku o tehničkim normativima za temeljenje građevinskih objekata, zasnovanom na teoriji dopuštenih napona, na primeru sanacije temelja stambene zgrade u Zemunu. Dobijeni rezultati potvrđuju adekvatnost izabranog proračunskog pristupa u nacionalnom prilogu i predloženih smernica za proračun nosivosti MEGA šipova.

Short review of provisions of Eurocode 7 for determination of pile axial bearing capacity is given in this paper. Design guidelines and recommendations for determination of bearing capacity of jacked-in MEGA piles, according to pile installation technology and chosen design approach in National Annex for Eurocode 7 (Part 1) in Serbia are presented. A validation of proposed guidelines through comparison with previous concept of allowable pile force is presented on the example of the rehabilitation of the foundations of a residential building in Zemun, Serbia. Obtained results confirm the adequacy of chosen design approach and proposed guidelines for determination of bearing capacity of MEGA piles.