Abstract
Although ground anchors are widely used in fields of civil engineering, as in soil and rock stabilization or anchoring structures, such as excavation pits, retaining walls or tunnel constructions, the load transfer behaviour has not been entirely investigated yet. Ground anchors are usually monitored by load cells at the anchor head or by strain gauges at selected points along the anchor, which both do not deliver reliable information along the entire anchor. Distributed strain sensing provides an opportunity to get the strain information along the entire length of the anchor, on the tendons as well as in the grout, as we have already shown in a preliminary anchor test. However, there were still lots of issues, which did not allow a general conclusion for all anchor types and ground conditions. Thus we investigated further ground anchors in different soil conditions (clay, rocklike material and gravel), within a research project. This paper gives an overview of the sensor systems used, the obtained results of the anchor pullout tests, gathered experiences and finally gives a brief concept of a monitoring anchor for long term monitoring.
Original language | English |
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Title of host publication | European Workshop on Optical Fibre Sensors, EWOFS 2023 |
Editors | Marc Wuilpart, Christophe Caucheteur |
Number of pages | 5 |
ISBN (Electronic) | 9781510665002 |
DOIs | |
Publication status | Published - 2023 |
Event | 2023 European Workshop on Optical Fibre Sensors: EWOFS 2023 - Wallonia Conference Centre Mons, Mons, Belgium Duration: 23 May 2023 → 26 May 2023 https://www.ewofs2023.org/ewofs2023 |
Publication series
Name | Proceedings of SPIE - The International Society for Optical Engineering |
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Volume | 12643 |
ISSN (Print) | 0277-786X |
ISSN (Electronic) | 1996-756X |
Conference
Conference | 2023 European Workshop on Optical Fibre Sensors |
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Abbreviated title | EWOFS 2023 |
Country/Territory | Belgium |
City | Mons |
Period | 23/05/23 → 26/05/23 |
Internet address |
Keywords
- distributed strain sensing
- geotechnical ground anchor
- load transfer
- monitoring anchor
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Applied Mathematics
- Electrical and Electronic Engineering
- Computer Science Applications
Fields of Expertise
- Sustainable Systems
Treatment code (Nähere Zuordnung)
- Application