Location

St. Louis, Missouri

Session Start Date

6-1-1993

Abstract

Difficult ground was predicted for the 6.3 km long Grauholz Tunnel. The geology comprises complex soft-ground above and below the groundwater and rock conditions. The examples described led to the choice of a mixshield machine to excavate the 11.6 m diameter tunnel. This machine can operate in either closed (slurry) or open (TBM) mode. Experiences with this installation are discussed.

Department(s)

Civil, Architectural and Environmental Engineering

Appears In

International Conference on Case Histories in Geotechnical Engineering

Meeting Name

Third Conference

Publisher

University of Missouri--Rolla

Publication Date

6-1-1993

Document Version

Final Version

Rights

© 1993 University of Missouri--Rolla, All rights reserved.

Document Type

Article - Conference proceedings

File Type

text

Language

English

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Jun 1st, 12:00 AM

Grauholz Railway Tunnel, Switzerland: Geotechnical Prediction and Its Influence on the Chosen Method of Excavation

St. Louis, Missouri

Difficult ground was predicted for the 6.3 km long Grauholz Tunnel. The geology comprises complex soft-ground above and below the groundwater and rock conditions. The examples described led to the choice of a mixshield machine to excavate the 11.6 m diameter tunnel. This machine can operate in either closed (slurry) or open (TBM) mode. Experiences with this installation are discussed.