engleski

The Planning of the Long Tunnel Excavation

The paper analyses the relationship between categories of excavation of certain tunnels. A relationship is given in natural and financial sense. Based on the analyzed relationship of forecasted and achieved categories of excavated tunnel, various approaches to this categorization and analyzed from the point of view of the designer, investor and contractor, depending on their approach to the goals of the construction as an investment project. Based on previous analyses, risk in categorization of tunnel excavations is explained as a key technological and key design risk in construction, especially for long tunnels in karsts. At the end, a model for managing risk in categorization of tunnel excavations between investor and contractor is given.

Long tunnel; tunnel excavation; risk of categorization of tunnel excavation.

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