Project
Clay minerals and Sulphates as a Cause for Swelling of Rocks (ASTRA1996/039)
Funding origin:
Switzerland
STRIA Roadmaps:
Other ()
Transport mode:
Road
Project website:
Duration:
Start date: 01/04/1996,
End date: 01/07/2007
Status: Finished
Funding details:
Overview
Background & policy context:
The triassic and jurassic layers in the Jura Mountains show often a heavy swelling potential. They contain clays and sulphates as a reason for swelling. It is the intention to simulate the swelling processes with cores out of the Belchen Tunnel (N2) in the laboratory for a better understanding of the phenomenon and their geological conditions as well as the possibility to influence the swelling by technical means.
Objectives:
The crucial objective of the project is to detect the operations on swelling of clay minerals and sulfate rocks depending on the geological situation and comparing the results with practical experience from the underground.
Further objectives of the project are:
- to understand the phenomena of swelling,
- to understand the dependency between sulphates clays
- to compare the laboratory results with the results obtained on the ground in tunnels Jura taking into account the regional geology.
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