engleski

Analysis of different phased construction models for two-tube tunnels on motorways

This paper presents a comparative analysis of four phased construction models for two-tube tunnels on motorways, using information gained during construction of different tunnels on Croatian motorways. They all have the same cross-section, all were built using the “drill & blast technique”, all are based on the NATM and all were in similar rock conditions. Main comparative parameters, to be used in the comparative analysis are: costs, safety, traffic volume, technology, regulations, risks, construction progress... The paper aims to find the optimal construction model for two-tube tunnels on motorways, from the aspects of above mentioned comparative parameters.

phase construction; tunnel

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