GEOTECHNICAL CONDITIONS FOR CREATION OF THE VERTICAL SHAFT FOR RECONSTRUCTION OF OIL PIPELINE FROM TERMINAL BROD TO CROATIAN BORDER ON SAVA RIVER

Abstract

Reconstruction of share in an existing corridor of Terminal Brod to the Croatian border on the Sava
River is part of the corridor, which continues to go across the river to Slavonski Brod. The existing
corridor will be replaced on a part of Sava River, where is planned a production of a tunnel with two
vertical shafts on the banks of the river. Research in the field of the shafts and tunnels are divided in
two parts considering the border line between the countries Bosnia and Herzegovina and Croatia. On
the right bank of the Sava River researches were conducted in the development of the vertical shaft.
The complexity of the geological structure and the proximity of of the Sava River require the
development of the vertical shaft from the supporting structure of reinforced concrete (RC) midriffs.
Also, the flow of water into the shaft is largely expected from its bottom, which requires manufacturing