Gas-Permeable Seal Test - Instrumentation

Instruments are installed at dedicated emplacement levels by creating cut-outs in the compacted material. Each instrument (e.g. TDRs, pressure sensors, seismic sensors) requires specialised methods to embed within the compacted material.

Gast expereiment, Grimsel : Instrumentation
Emplacement of 3-finger TDR

Gast expereiment, Grimsel : Instrumentation
Levelling of instruments

Gast expereiment, Grimsel : Instrumentation
Emplacement of pressure port

Gast expereiment, Grimsel : Instrumentation
Drilling for emplacement of seismic sensors

Gas-Permeable Seal Test (GAST)

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.