Bypass of Zenica city - BiH

Project overview

Country Bosnia and Herzegovina
Overall project value in € 100,000
Name of client ENERGOINVEST
Dates start/end 02/2010 – 11/2011

Detailed description of project

The objective of the project was to design a new highway around Zenica, which is the second biggest city in Bosnia and Herzegovina. In order to reach this objective, all necessary engineering geology works for the design of the new highway have been conducted.

The construction of the bypass road around the city of Zenica is 9.0 km long and is located east of the town on the mountainous hillside of the surroundings, which consists of topographically very rugged units formed by limestone, flysch, and Oligo-Miocene rocks or a combination thereof. The bypass is part of the Pan-European motorway corridor Vc (also designated as E73), which connects Budapest in Hungary with the Croatian port of Ploče on the Adriatic coast. It is a high-priority infrastructure project in Bosnia and Herzegovina, which is essential for the development of the country.

In all, 6 bridge structures (DRIVUŠA, PERIN HAN, KLOPČE, BABINA RIJEKA 235 m high, PPEHARE and RIČICE) were constructed, with a total length of about 2,060 m, as well as 2 CUT&COVER tunnels, 150 m and about 300 m long respectively, and 5 underpasses of the profile 2.0 x 2.5 m under the main route, and 2 bored tunnels Ričice and Pečuj with a total length of 1,644 m.

Type of services provided

  • Engineering geology survey;
  • Field works - mapping and sampling;
  • Laboratory tests for soil and water - done by GEOtest own laboratory - soil testing by GEOLAB Sarajevo;
  • Interpretation of results;
  • Supervision of drilling works and installation of inclinometer;
  • Interpretation of inclinometer measurement;
  • Geotechnical work:
    • Design of the foundations for bridge structures on footings and piles in the field affected by landslide processes and seismic activity. The stability of all high slopes was assessed, as well as cuttings, embankment bodies and gabion walls. Also, designs for the slope stability of (up to 55 m high) cuttings and the construction pits of CUT&COVER tunnels were made. Within the project micropiles were used for increasing the load-bearing capacity of the foundations of these tunnels. For these activities, Mathematical Modelling was used applying the FEA (PLAXIS) methods and classical analytical methods respecting the local regulations.

Key Experts - in-house

Ing. Hynek Janků, Mr. Engineering geology, Project manager
Ing. Vít Černý, Mr. Engineering geology
Ing. Jan Fousek, Mr. Engineering geology