<p>This paper aims to summarize all the main criteria to carry out the design and supervision of in situ concrete lining. It is shown what are the main points to make it easier the supervision. Once excavation, support and waterproofing phases are finished, ...

<p>Tunnel excavation is frequently carried out in rock masses by the drill and blast method and the final shape of the tunnel boundary can be irregular due to overbreaks. In order to investigate the effects of overbreaks a study of the effect of tunnel boundary ...

The mechanical behavior of a shotcrete lining is analyzed in this paper using the convergenceconfinement approach. A calculation procedure is presented which is able to provide the reaction curve of a lining with increasing stiffness, by taking into account ...

This report documents information on materials, specification requirements, design details, application methods, system performance, and costs of waterproofing membranes used on new and existing bridge decks since 1995.

It is inappropriate, if not meaningless, to attempt to apply limit state design methods, such as those encapsulated in Eurocode 7, to the design of primary support for tunnels in rock, particularly weak rock or any rock under high stress. By reference to some ...

This report provides information on the state of the practice of design fires in road tunnels, focusing on tunnel fire dynamics and the means of fire management for design guidance.

<p>According to modern design codes, such as the Eurocode 7, also Soil Retaining<br />structures should be designed according to Ultimate Limit State analysis, see [1]. From an economic point of view, the design of the lining, i.e. the thickness and reinforcement ...

<p>The paper deals with the concrete lining behaviour at Serviceability Limit State (SLS) in order to evaluate the advantages that result from an optimized reinforcement based on the combination of rebars and fibers with respect to the crack behaviour of segmental ...

<p>New procedures to design cast-in-situ steel fiber reinforced concrete (SFRC) tunnel linings are briefly presented in this paper. The ductile behavior at ultimate limit stage of such cement-based structures is ensured by a suitable amount of steel fibers ...

<p>Tunnels lined with concrete formed on site are subject to ageing and developments that may endanger their stability, functions, safety and the required level of service. A certain number of defects are inevitably noted during or after tunnel construction. ...