Virtual Tours : CFM Packer

In the CFM Project a major aim was sealing the shear zone at the tunnel surface with a megapacker to create a no (or low) flow boundary and to reduce the gradient in the groundwater heads from the rock towards the tunnel. The view below is shown standing within the CFM megapacker.

View from within the CFM megapacker - view the Colloid Formation and Migration (CFM) Section for more info

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.