Serviceability of soil nailed walls in dynamic centrifuge tests

Alireza Ghadamgahi; Mohammed Baziar; Andrew Brennan

doi:10.1201/9780429031274

Serviceability of soil nailed walls in dynamic centrifuge tests

Alireza Ghadamgahi, Mohammed Baziar, Andrew Brennan

Civil Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Citation (Scopus)

Abstract

Studies of seismic response of reinforced soil systems have largely focused on failure mechanisms. However, design requires demonstration that deformations are tolerable. To investigate the serviceability of a soil nailed wall, a centrifuge testing program was conducted. Model walls were constructed, and then subjected to three successive earthquake motions to determine their deformation under seismic loading. Models represented a prototype excavation of a 12 m deep wall with five rows of nails at a scale factor of 50. This paper summarizes the scaling considerations, the model preparation procedure and the method used to perform the tests. In addition, the result of a test on the nailed wall is presented through which the pattern of wall deformation and changes in the tensile load of an instrumented nail during the earthquake motions are reported and discussed.

Original language	English
Title of host publication	Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions
Subtitle of host publication	Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019), June 17-20, 2019, Rome, Italy
Editors	Francesco Silvestri, Nicola Moraci
Place of Publication	London
Publisher	CRC Press
Pages	2616-2623
Number of pages	8
Edition	1
ISBN (Electronic)	9780429031274
ISBN (Print)	9780367143282
DOIs	https://doi.org/10.1201/9780429031274
Publication status	Published - 2019
Event	7th International Conference on Earthquake Geotechnical Engineering (ICEGE 2019) - Rome, Italy Duration: 17 Jun 2019 → 20 Jun 2019 http://www.7icege.com/

Publication series

Name	Proceedings in Earth and Geosciences

Conference

Conference	7th International Conference on Earthquake Geotechnical Engineering (ICEGE 2019)
Country/Territory	Italy
City	Rome
Period	17/06/19 → 20/06/19
Internet address	http://www.7icege.com/

Access to Document

10.1201/9780429031274

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Ghadamgahi, A., Baziar, M., & Brennan, A. (2019). Serviceability of soil nailed walls in dynamic centrifuge tests. In F. Silvestri, & N. Moraci (Eds.), Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions: Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019), June 17-20, 2019, Rome, Italy (1 ed., pp. 2616-2623). (Proceedings in Earth and Geosciences). CRC Press. https://doi.org/10.1201/9780429031274

Ghadamgahi, Alireza ; Baziar, Mohammed ; Brennan, Andrew. / Serviceability of soil nailed walls in dynamic centrifuge tests. Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions: Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019), June 17-20, 2019, Rome, Italy. editor / Francesco Silvestri ; Nicola Moraci. 1. ed. London : CRC Press, 2019. pp. 2616-2623 (Proceedings in Earth and Geosciences).

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abstract = "Studies of seismic response of reinforced soil systems have largely focused on failure mechanisms. However, design requires demonstration that deformations are tolerable. To investigate the serviceability of a soil nailed wall, a centrifuge testing program was conducted. Model walls were constructed, and then subjected to three successive earthquake motions to determine their deformation under seismic loading. Models represented a prototype excavation of a 12 m deep wall with five rows of nails at a scale factor of 50. This paper summarizes the scaling considerations, the model preparation procedure and the method used to perform the tests. In addition, the result of a test on the nailed wall is presented through which the pattern of wall deformation and changes in the tensile load of an instrumented nail during the earthquake motions are reported and discussed.",

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Ghadamgahi, A, Baziar, M & Brennan, A 2019, Serviceability of soil nailed walls in dynamic centrifuge tests. in F Silvestri & N Moraci (eds), Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions: Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019), June 17-20, 2019, Rome, Italy. 1 edn, Proceedings in Earth and Geosciences, CRC Press, London, pp. 2616-2623, 7th International Conference on Earthquake Geotechnical Engineering (ICEGE 2019), Rome, Italy, 17/06/19. https://doi.org/10.1201/9780429031274

Serviceability of soil nailed walls in dynamic centrifuge tests. / Ghadamgahi, Alireza; Baziar, Mohammed; Brennan, Andrew.
Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions: Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019), June 17-20, 2019, Rome, Italy. ed. / Francesco Silvestri; Nicola Moraci. 1. ed. London: CRC Press, 2019. p. 2616-2623 (Proceedings in Earth and Geosciences).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Ghadamgahi, Alireza

AU - Baziar, Mohammed

AU - Brennan, Andrew

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N2 - Studies of seismic response of reinforced soil systems have largely focused on failure mechanisms. However, design requires demonstration that deformations are tolerable. To investigate the serviceability of a soil nailed wall, a centrifuge testing program was conducted. Model walls were constructed, and then subjected to three successive earthquake motions to determine their deformation under seismic loading. Models represented a prototype excavation of a 12 m deep wall with five rows of nails at a scale factor of 50. This paper summarizes the scaling considerations, the model preparation procedure and the method used to perform the tests. In addition, the result of a test on the nailed wall is presented through which the pattern of wall deformation and changes in the tensile load of an instrumented nail during the earthquake motions are reported and discussed.

AB - Studies of seismic response of reinforced soil systems have largely focused on failure mechanisms. However, design requires demonstration that deformations are tolerable. To investigate the serviceability of a soil nailed wall, a centrifuge testing program was conducted. Model walls were constructed, and then subjected to three successive earthquake motions to determine their deformation under seismic loading. Models represented a prototype excavation of a 12 m deep wall with five rows of nails at a scale factor of 50. This paper summarizes the scaling considerations, the model preparation procedure and the method used to perform the tests. In addition, the result of a test on the nailed wall is presented through which the pattern of wall deformation and changes in the tensile load of an instrumented nail during the earthquake motions are reported and discussed.

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BT - Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions

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Ghadamgahi A, Baziar M, Brennan A. Serviceability of soil nailed walls in dynamic centrifuge tests. In Silvestri F, Moraci N, editors, Earthquake Geotechnical Engineering for Protection and Development of Environment and Constructions: Proceedings of the 7th International Conference on Earthquake Geotechnical Engineering, (ICEGE 2019), June 17-20, 2019, Rome, Italy. 1 ed. London: CRC Press. 2019. p. 2616-2623. (Proceedings in Earth and Geosciences). Epub 2019 Oct 22. doi: 10.1201/9780429031274

Serviceability of soil nailed walls in dynamic centrifuge tests

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