Weiterentwicklung von Stauchelementen und Spritzbetonanschlüssen

Wulf Schubert, Stefan Brunnegger, Robert Staudacher, Julian Wenger

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

Yielding elements in combination with shotcrete linings are used in Austria since 1994, replacing the previous method of leaving open gaps. The first system, used at the Galgenbergtunnel, consisted of groups of axially loaded steel pipes with manufactured local weakness. The resistance of those elements showed a pronounced oscillation during shortening. This triggered a first improvement of the elements in the late 1990ies. Those elements were called LSC (Lining Stress Controller) and subsequently successfully used on a significant number of projects around the world. Recently, the yielding elements have been further optimized aiming at easier production and lower costs. Still using steel pipes, those are filled with porous material, increasing the elements' capacity. With sequential excavation, construction joints in the shotcrete lining are necessary. Producing quality joints appears to be difficult without special connecting elements. The so produced connections are thus potential points of weakness, reducing the lining capacity. A prototype of a connecting element was developed, which can be easily produced and installed. Site tests have been successfully conducted at the tunnel Stein in Austria.

Titel in ÜbersetzungFurther development of yielding elements and connecting elements for shotcrete
Originalsprachedeutsch
Seiten (von - bis)575-581
Seitenumfang7
FachzeitschriftGeomechanics and Tunnelling
Jahrgang11
Ausgabenummer5
DOIs
PublikationsstatusVeröffentlicht - 1 Okt 2018

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shotcrete
Linings
pipe
steel
Steel pipe
excavation
tunnel
oscillation
Excavation
cost
Porous materials
Tunnels
Controllers
Costs
material
world
test
method
project

Schlagwörter

  • connecting elements
  • Conventional tunnelling
  • shotcrete lining
  • Support
  • yielding elements

ASJC Scopus subject areas

  • !!Civil and Structural Engineering
  • !!Geotechnical Engineering and Engineering Geology

Fields of Expertise

  • Sustainable Systems

Treatment code (Nähere Zuordnung)

  • Application

Dies zitieren

Weiterentwicklung von Stauchelementen und Spritzbetonanschlüssen. / Schubert, Wulf; Brunnegger, Stefan; Staudacher, Robert; Wenger, Julian.

in: Geomechanics and Tunnelling , Jahrgang 11, Nr. 5, 01.10.2018, S. 575-581.

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Schubert, Wulf ; Brunnegger, Stefan ; Staudacher, Robert ; Wenger, Julian. / Weiterentwicklung von Stauchelementen und Spritzbetonanschlüssen. in: Geomechanics and Tunnelling . 2018 ; Jahrgang 11, Nr. 5. S. 575-581.
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