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List of products by author: E. Humbert
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Assessing risks as soon as the preliminary studies: The example of the tunnels of a new railway line in the south of...
Abstract: This paper presents the principles of the risk assessment process for tunnels which was conducted as part of preliminary studies of New Line LNPCA in the south of France between Marseille and Italy. It presents the basic principles used to estimate firstly the most likely level of technical difficulty for each site and secondly the effect of related...
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Key Elements for Keeping the Costs of Tunneling Projects under Control
Abstract: Many owners are convinced that it is impossible to keep construction costs of tunneling projects under control and that additional costs that may occur are always significant. This article is based on an analysis of as-built costs for tunneling projects, in France, for these last fifteen years and shows that costs can be kept under control if some considerations in the studies and the progress...
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Site Investigations Reduce Cost Overruns in Tunnelling Projects
Abstract: Geology plays a dominant role in designing and constructing a tunnel. The geological and geotechnical studies allow to specify the conditions in which will be realized the works. However, the rock mass is complex and the knowledge of the geologic context is always imperfect. This context can be very different from one site to another and the techniques of construction to be implemented to...
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