Applicability of excavated rock material: A European technical review implying opportunities for future tunnelling projects

Maximilian Haas, Laetitia Mongeard, Luisa Ulrici, Laetitia D'Aloia, Agnes Cherrey, Robert Galler, Michael Benedikt

Publikation: Beitrag in FachzeitschriftÜbersichtsartikelBegutachtung


The European Organization for Nuclear Research (CERN) is a world-wide leading organisation in the field of particle physics and operation of high-class particle accelerators. Since 2013, CERN has undertaken feasibility investigations for a particle accelerator, named Future Circular Collider (FCC) to be installed within a 90–100 km subsurface infrastructure likely to enter construction phase after 2030. An important aspect of its construction and environmental impact assessment is the management of approximately 9.1 million m 3 of excavated rock and soil. The aim of this paper is to thoroughly review the applications of excavated material across European subsurface construction projects from a technical point of view and set them into context with studies currently ongoing for FCC. We propose a conceptual flow model for rock characterisation with respect to both applicability of excavated material and tunnelling excavation techniques for future international subsurface construction projects. The review has revealed a vast and encouraging potential across different European construction sites efficiently using excavated rock and soil over the past decade ranging from concrete production, geopolymer production, embankment and landfilling. Examples of reviewed subsurface tunnelling projects are likely to be applied for FCC including concrete production, clay-sealing for embankments, geopolymer face stabilization, re-cultivation or agricultural usage as mixed soil material or sustainable waste disposal.

Seiten (von - bis)1-17
FachzeitschriftJournal of Cleaner Production
Ausgabenummer15 September
PublikationsstatusVeröffentlicht - 15 Sept. 2021

Bibliographische Notiz

Funding Information:
This study has received funding from the European Union's Horizon 2020 research and innovation programme under grant No. 951754 .

Funding Information:
The authors would like to thank Dr. Jacques Burdin (Ingenieur Conseil) and Dr. Michael Pl?tze (ClayLab, Institute for Geotechnical Engineering, ETH Zurich) for their valuable input, which helped improving the manuscript. Pieter Mattelaer (project leader) and J?r?my Voiron (geotechnical engineer) are sincerely thanked for providing the data for CERN's HL-LHC construction project and for the fruitful discussions on-site. This study has received funding from the European Union's Horizon 2020 research and innovation programme under grant No. 951754.

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© 2021 Elsevier Ltd

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