Details
| Original language | English |
|---|---|
| Title of host publication | Physical Modelling in Geotechnics |
| Subtitle of host publication | Proceedings of the 9th International Conference on Physical Modelling in Geotechnics |
| ISBN (electronic) | 9780429438646 |
| Publication status | Published - 5 Jul 2018 |
Abstract
Sustainable Development Goals
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Physical Modelling in Geotechnics: Proceedings of the 9th International Conference on Physical Modelling in Geotechnics. 2018.
Research output: Chapter in book/report/conference proceeding › Conference contribution › Research › peer review
}
TY - GEN
T1 - Model testing of rotary jacked open ended tubular piles in saturated non-cohesive soil
AU - Achmus, Martin
AU - Frick, Dennis
AU - Schmoor, Kirill Alexander
AU - Gütz, Patrick
PY - 2018/7/5
Y1 - 2018/7/5
N2 - Conventional installation methods for displacement piles (i.e. impact-driving or vibratory-driving) induce vibrations and settlements in a zone close to the pile. Moreover they lead to noise pollution unfavourable especially in urban areas. A possible solution to these problems is the technology of rotary pile jacking. Thereby the pile is continuously pushed into the subsoil by a vertical force. For large pile dimensions a rotation is additionally applied to overcome high axial forces. This paper presents a new testing facility for axially loaded piles in saturated non-cohesive soils as well as the preparation procedure of the test sand. The facility is capable of installing and loading model piles by applying an axial load as well as a simultaneous rotary motion and enables model testing in different scales up to pile diameters of 101.6 mm and a maximum embedment length of 2.3 m. All test stages can be monitored and recorded with a data acquisition system, making it possible to study the influence of different installation parameters on the required installation forces and the resulting bearing behaviour. First results prove the efficiency of a rotation regarding the required axial installation force.
AB - Conventional installation methods for displacement piles (i.e. impact-driving or vibratory-driving) induce vibrations and settlements in a zone close to the pile. Moreover they lead to noise pollution unfavourable especially in urban areas. A possible solution to these problems is the technology of rotary pile jacking. Thereby the pile is continuously pushed into the subsoil by a vertical force. For large pile dimensions a rotation is additionally applied to overcome high axial forces. This paper presents a new testing facility for axially loaded piles in saturated non-cohesive soils as well as the preparation procedure of the test sand. The facility is capable of installing and loading model piles by applying an axial load as well as a simultaneous rotary motion and enables model testing in different scales up to pile diameters of 101.6 mm and a maximum embedment length of 2.3 m. All test stages can be monitored and recorded with a data acquisition system, making it possible to study the influence of different installation parameters on the required installation forces and the resulting bearing behaviour. First results prove the efficiency of a rotation regarding the required axial installation force.
M3 - Conference contribution
SN - 978-1138344228
BT - Physical Modelling in Geotechnics
ER -