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 Übersetzung | Further development of yielding elements and connecting elements for shotcrete |
|---|---|
| Originalsprache | deutsch |
| Seiten (von - bis) | 575-581 |
| Seitenumfang | 7 |
| Fachzeitschrift | Geomechanics and Tunnelling |
| Jahrgang | 11 |
| Ausgabenummer | 5 |
| DOIs | |
| Publikationsstatus | Veröffentlicht - 1 Okt 2018 |
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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 Fachzeitschrift › Artikel › Forschung › Begutachtung
}
TY - JOUR
T1 - Weiterentwicklung von Stauchelementen und Spritzbetonanschlüssen
AU - Schubert, Wulf
AU - Brunnegger, Stefan
AU - Staudacher, Robert
AU - Wenger, Julian
PY - 2018/10/1
Y1 - 2018/10/1
N2 - 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.
AB - 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.
KW - connecting elements
KW - Conventional tunnelling
KW - shotcrete lining
KW - Support
KW - yielding elements
UR - http://www.scopus.com/inward/record.url?scp=85054185312&partnerID=8YFLogxK
U2 - 10.1002/geot.201800038
DO - 10.1002/geot.201800038
M3 - Artikel
VL - 11
SP - 575
EP - 581
JO - Geomechanics and Tunnelling
JF - Geomechanics and Tunnelling
SN - 1865-7362
IS - 5
ER -