Scholarly record

NEW APPROACHES TO THE DESIGN AND EVALUATION OF CEMENT CONCRETE PAVEMENTS IN TUNNELS

Andrea Zuzulova, Dominika Glasnakova

Abstract

Tunnels, as specific types of transport structures, place high demands on pavement construction. When selecting the pavement type, two main construction types are often compared: asphalt concrete and cement concrete. Both have their advantages and disadvantages, which must always be considered in light of the boundary conditions. The choice between asphalt and concrete pavement should be based on the specific project requirements, climatic conditions, traffic load, planned service life, maintenance and repair options, and the availability of financial resources. The pavement design must take into account mechanical, environmental, and economic requirements, including construction costs (including design activities), future maintenance costs, and operational safety. This paper focuses on the specific aspects of design, as well as the construction and operational requirements of cement concrete pavements in tunnel sections of road infrastructure. It analyses advantages such as long service life, high load-bearing capacity, and reduced maintenance costs, while also describing potential risks related to safety requirements in tunnels. Pavement should be viewed in the context of its entire life cycle. Therefore, it is necessary to implement procedures with a strong emphasis on sustainable construction and especially on sustainable management. Sustainability is one of the key criteria for pavement construction. Low maintenance requirements, high reliability, good durability, as well as non-flammability and non-toxicity contribute to tunnel safety and the overall sustainability of the road network. The optimal choice should be based on a thorough analysis of operational conditions and financial possibilities throughout the pavement’s life cycle.

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