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

被引：0

作者：

Entfellner, M. ^{[1
]}

Wannenmacher, H. ^{[1
]}

Schubert, W. ^{[2
]}

机构：

[1] Implenia Austria GmbH, Salzburg, Austria

[2] Graz Univ Technol, Graz, Austria

来源：

PROCEEDINGS OF THE ITA-AITES WORLD TUNNEL CONGRESS 2023, WTC 2023: Expanding Underground-Knowledge and Passion to Make a Positive Impact on the World | 2023年

关键词：

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

D O I：

10.1201/9781003348030-224

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

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.

引用

页码：1864 / 1871

页数：8

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