GEOTECHNICAL CHARACTERISTICS OF THE TERRAIN AND CALCULATION OF BEARING CAPACITY FOR BRIDGE No. 3 OF MOTORWAY TARCIN – KONJIC

Abstract

In paper is given overview on geotechnical characteristics of the terrain on location of
a bridge number 3, on highway Tarcin – Konjic. Complexity of geological structure,
in near surface where it consists from sediments of weathering crust to depth of
around 30,0 m, as well as in substrate that consists of sediments of clayey debris,
determined the way of foundation.
On software package Geo 5 is done a semi-analytical approach for determining the
load capacity of the pile and extent of subsidence in relation to given load. Pile is
modeled with beam elements where is observed behavior of surrounding terrain
according to Winkler-Pasternak modele, and shearing force to the contact of pile and
soil are determined based on Mohr-Coulombo criteria. Changeable characteristics on
the terrain demanded analysis of every pile for which are given propositions for
foundation and allowed load.