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When withdrawing the route of the expressway Drenovo - Raec, the axis of the road is forced to stretch near or through the mountain massifs. This created a general dilemma, whether to make classical excavations or tunnel constructions in certain locations. Considerations were also made for the decision on high embankments or viaducts. The characteristic location presented in this paper is located between the existing national road and the river Raec. For this location, a comparative analysis of the variant solutions for excavation and tunnel was made and the main parameters that affect the final solution were indicated.
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