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List of products by author: D. Merlini
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Ceneri Base Tunnel: design and excavation of large caverns
Abstract: The Ceneri Base Tunnel (CBT), 15.4 km in length, is the southernmost portion of the flat railway line crossing the Swiss Alps (AlpTransit Gotthard Ltd). This paper describes and discusses some key issues about the design and execution of large caverns in rock. It aims at illustrating the comparison between the prognosis and the crosscheck of support methods and the adaptation of the first...
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CERN (HL-LHC) the construction experience for the underground works at Point 5
Abstract: High-Luminosity LHC (HL-LHC) is the new project aiming to upgrade the underground particle accelerator Large Hadron Collider (LHC), at Point 1 (ATLAS in Switzerland) and Point 5 (CMS in France). This paper describes the construction experience for the new underground works at Point 5, located near the existing LHC tunnel. From a geological point of view, the site lies in an area covered by...
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Contractual Management of Geological Risks and Construction Programme International Standards and Case Histories
Abstract: The geo-uncertainty of underground projects most often leads to differences between foreseen and encountered geo-conditions. Dealing with this uncertainty is a major challenge as it often raises claims and complex contractual problems mostly related to the construction programme. Over the last years, contract management tools have been developed in order to manage this risk. One of the key...
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Emerald Book applications - The adjustment of time
Abstract: The Emerald Book includes a provision for adjustment of time, in addition to current contract standards that only foresee extension of time for completion. Having been published in 2019, at present there are no direct experiences of contracts under the Emerald Book. However, in various national contexts the adjustment of time is being applied in contracts similar to the new FIDIC Form of...
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