Preview

Author(s):
Title:
Abstract:	One of the main goals of the ground investigation for the Koralm Tunnel project was the detailed investigation of the Lavanttal fault systemwhich lies in the contact between the Koralm crystalline and the neogenic formations of the Lavanttal. The above-ground investigation programme (mapping, core drilling, geophysics) was able to deliver the first estimation of the geological, hydrogeological and geotechnical rock conditions of the fault zone many hundreds of metres thick (fig. 1). The Paierdorf investigation tunnel, which has now been constructed, clarified the thickness and the internal structure of the fault zone as well as the hydraulic and mechanical rock properties along the tunnel. Equally important was the practical experience gained by tunnelling through the fault zone. The knowledge gained from the Paierdorf investigation tunnel will be used in further design work for the mechanical driving of this very heterogeneous region of rock. Eines der wesentlichen Erkundungsziele für das Projekt Koralmtunnel stellt die detaillierte Erkundung des Lavanttaler Störungssystems, insbesondere die im Kontaktbereich zwischen dem Koralmkristallin und dem Neogen des Lavanttals verlaufende Hauptstörungszone, dar. Mit den übertägigen Erkundungsarbeiten (Kartierungen, Kernbohrungen, Geophysik) konnten erste Einschätzungen bezüglich der geologischen, hydrogeologischen und geotechnischen Gebirgsverhältnisse dieser mehrere hundert Meter mächtigen Störungszone gewonnen werden (Bild 1). Mit dem nun gebauten Erkundungstunnel (EKT) Paierdorf wurden die Mächtigkeit, der interne Aufbau der Störungszone sowie die hydraulischen und mechanischen Gebirgsverhältnisse im Bereich der Tunneltrasse abgeklärt. Ebenso wichtig waren die praktischen Erfahrungen der tunnelbautechnischen Bewältigung der Störungszone. Die Erkenntnisse aus dem EKT sollen in die weiteren Planungsschritte für das maschinelle Auffahren dieses sehr heterogenen Gebirgsbereichs einfließen.
Source:	Geomechanics and Tunnelling 3 (2010), No. 2
Page/s:	163-173
Language of Publication:	English/German

I would like to buy the article

You can download this article for 25 € as a PDF file (2.23 MB).
The PDF file can be read, printed and saved.
Duplication and forwarding to third parties is not allowed.

Please enter your email address now to start the order process.
The link for the download will be sent to the email address stated after the
order process has been completed.

Your email address

I am an online subscriber

As an online subscriber of the journal "Geomechanics and Tunnelling" you can access this article via Wiley Online Library.

I would like to order "Geomechanics and Tunnelling"

This article has been published in the journal "Geomechanics and Tunnelling". If you would like to learn more about the journal, you can order a free sample copy or find out more information on our website.

Prices include VAT and postage. Prices for 2017/2018.
€ Prices apply to Germany only. Subject to alterations, errors excepted.