25 years of underground engineering in a plastic clay formation: the HADES underground research facility

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Abstract

The Boom Clay layer, a tertiary plastic clay, was chosen as a study case for the geological disposal of high level and long-lived radioactive waste. For R&D purposes, the underground research facility HADES was constructed at a depth of 223m. The construction started in 1980 with the sinking of a shaft, and the facility was expanded several times since then. Construction techniques and the level of understanding of hydro-mechanical processes have very much evolved throughout the years. This paper describes the construction techniques used at HADES and focuses on the most recent extension. A 80m long gallery was constructed using industrial techniques and the excavation was accompanied by an extensive instrumentation and characterisation programme.

Details

Original languageEnglish
Title of host publicationProceedings of the 5th international conference of TC28 of the ISSMGE on Geotechnical aspects of underground construction in soft ground
Place of PublicationLondon, United Kingdom
Pages795-801
Publication statusPublished - Jan 2006
Event5th international symposium on geotechnical aspects of underground construction in soft ground - International Society for Soil Mechanics and Geotechnical Engineering (ISSMGE), Amsterdam, Netherlands
Duration: 15 Jun 200517 Jun 2005

Conference

Conference5th international symposium on geotechnical aspects of underground construction in soft ground
CountryNetherlands
CityAmsterdam
Period2005-06-152005-06-17

Keywords

  • Tunnelling, ground freezing, HADES, Boom Clay, HLW

ID: 116026