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Deep geological disposal - Far field

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A series of emplacement tunnels will be constructed deep underground to house the HLW and SF canisters. An example layout for a SF/HLW repository and an operational study (surface facilities, emplacement tunnels, pilot tunnels, rock laboratory, access ramp, ventilation tower, etc.) has been developed by Nagra.

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Video overview of a possible tunnel layout for a SF/HLW repository, designed for a sedimentary formation

The images below are stills taken from the Nagra Die LÖSUNG DVD which outlines the procedures and methods for the remote emplacement of a HLW / spent fuel canister.  Please see the Media & Downloads section for additional videos on geological emplacement.

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Overview of Deep Geolgical Disposal - click for larger image

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Emplacement tunnels - click for larger image

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Pilot tunnels - click for larger image

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Underground rock laboratory area - click for larger image

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Access ramp - click for larger image

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Repository situated at a depth ~600m - click for larger image

 

 

Grimsel's role in Research

The Grimsel Test Site (GTS) is a scientific test site and not a potential repository site; although investigations may utilise a wide range of radioactive tracers, no radioactive waste will be disposed of at the GTS.

The GTS underground facilities are also available to interested 3rd parties for underground testing and research. The GTS offers cost-effective access to a fully developed, well characterised underground research facility with round the year logistical support - please contact Dr. Ingo Blechschmidt, Head of the Grimsel Test Site, for further details.