Developments in the field of removable anchors

Matthias Rebhan*, Roman Marte, Franz Tschuchnigg, Alexander S. Eder, Harald Fuschelberger, Bruno Meyerhans

*Corresponding author for this work

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


The design of inner-city building pits is a challenging task in geotechnical engineering. Due to rising property prices and the limited vacant plots in urban areas, the installation of building pit support measures is often constrained. Besides rigid systems, struts or anchors are often used to support such building pits. On the one hand, this support is required to come up with an economical design and on the other hand, it is necessary to keep the deformations of adjacent structures within certain limits. In this paper a new approach for the design and the (de-)installation process of removeable anchors is presented. By using a non-explosive cracking agent, a fully removeable anchor has been developed. Laboratory test results have shown, that by filling a pre-installed injection tube with the non-explosive cracking agent, a partial destruction of the grout body and consequently a reduction of the bond along the cement body and the steel tendon can be achieved. As a result, an extraction of the steel tendon is possible.

Original languageEnglish
Title of host publicationProceedings NGM 2021
Number of pages6
Publication statusPublished - 26 Apr 2021
Event18th Nordic Geotechnical Meeting: NGM 2020 - Helsinki, Virtual, Finland
Duration: 18 Jan 202119 Jan 2021

Publication series

NameIOP Conference Series: Earth and Environmental Science
PublisherCurran Associates, Inc
ISSN (Print)1755-1307


Conference18th Nordic Geotechnical Meeting
CityHelsinki, Virtual

ASJC Scopus subject areas

  • Environmental Science(all)
  • Earth and Planetary Sciences(all)

Fields of Expertise

  • Sustainable Systems

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