GEOTECHNICAL CONDITIONS FOR CREATION OF THE VERTICAL SHAFT FOR RECONSTRUCTION OF OIL PIPELINE FROM TERMINAL BROD TO CROATIAN BORDER ON SAVA RIVER
Reconstruction of share in an existing corridor of Terminal Brod to the Croatian border on the SavaRiver is part of the corridor, which continues to go across the river to Slavonski Brod. The existingcorridor will be replaced on a part of Sava River, where is planned a production of a tunnel with twovertical shafts on the banks of the river. Research in the field of the shafts and tunnels are divided intwo parts considering the border line between the countries Bosnia and Herzegovina and Croatia. Onthe 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 thedevelopment 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