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Prediction ahead of the tunnel face by seismic methods - pilot project in Centovalli Tunnel, Locarno, SwitzerlandNormal access

Authors: G. Sattel, P. Frey and R. Amberg
Journal name: First Break
Issue: Vol 10, No 1, January 1992 pp. 19 - 25
DOI: 10.3997/1365-2397.1992002
Language: English
Info: Article, PDF ( 3.74Mb )
Price: € 30

In planning the construction of a tunnel, a geological prognosis is necessary. The reliability of the prognosis is directly related to the amount of information available from surface geology, drillholes and geophysical surface investigations. During the excavation phase the tunnel engineer requires detailed and quantitative information about abrupt changes in rock quality and formation boundaries lying ahead, and these cannot always be obtained from surface investigations.

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