A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Distributed fibre optic sensing during different anchor pullout tests
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.
Distributed fibre optic sensing during different anchor pullout tests
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.
Distributed fibre optic sensing during different anchor pullout tests
Wuilpart, Marc (editor) / Caucheteur, Christophe (editor) / Woschitz, Helmut (author) / Winkler, Madeleine (author) / Račanský, Václav (author)
European Workshop on Optical Fibre Sensors (EWOFS 2023) ; 2023 ; Mons, Belgium
Proc. SPIE ; 12643
2023-05-23
Conference paper
Electronic Resource
English
Experimental behaviour of anchor bolts under pullout and relaxation tests
| British Library Online Contents | 2010
Experimental behaviour of anchor bolts under pullout and relaxation tests
| Online Contents | 2010
Numerical modelling of anchor bolts under pullout and relaxation tests
| Elsevier | 2009