Yielding elements made of high-strength expanded polystyrene (HS-EPS)

M. Entfellner, H. Wannenmacher, W. Schubert

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review

Abstract

Yielding elements as a part of the shotcrete lining represent the state-of-the-art for tunnelling in overstressed weak ground conditions. They avoid an overstressing of the shotcrete lining during the early curing process. A novel yielding element is introduced, which overcomes existing systems’ drawbacks. The innovative system is lightweight and allows for rapid installation. Furthermore, the modular setup of the element permits on-site adaption to react to actual deformation patterns and changing ground conditions. Recent experiences from an application in an alpine base tunnel in overstressed weak ground conditions are presented.

Original languageEnglish
Title of host publicationExpanding Underground - Knowledge and Passion to Make a Positive Impact on the World- Proceedings of the ITA-AITES World Tunnel Congress, WTC 2023
EditorsGeorgios Anagnostou, Andreas Benardos, Vassilis P. Marinos
PublisherCRC Press/Balkema
Pages1864-1871
Number of pages8
ISBN (Print)9781003348030
DOIs
Publication statusPublished - 2023
Event2023 ITA-AITES World Tunnel Congress: and 49th General Assembly of the International Tunnelling and Underground Association - Athens, Greece
Duration: 12 May 202318 May 2023

Conference

Conference2023 ITA-AITES World Tunnel Congress
Abbreviated titleITA-AITES WTC 2023
Country/TerritoryGreece
CityAthens
Period12/05/2318/05/23

Keywords

  • Ductile Lining
  • Fault Zone
  • HS-EPS
  • Overstressed Weak Ground
  • Squeezing Ground
  • Tunnelling
  • Yielding Elements
  • Yielding Principle

ASJC Scopus subject areas

  • Geotechnical Engineering and Engineering Geology
  • Civil and Structural Engineering
  • Building and Construction

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