Seismic interaction analysis of deep excavation- piled foundation in soft soils

Dynamic interaction analysis of deep excavation-piled foundation in soft soils is studied. In this contribution, deep excavation is considered to be adjacent to the piled foundation. In fact, the interactive influences of a deep cavern and a piled foundation is studied. Loose sands and soft clayey l...

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Autores principales:	Abdolghafour Khademalrasoul, Negar Zangenenejad
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2021
Materias:	deep excavation cavern-piled foundation interaction frequency domain analysis soil liquefaction fft Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/20e46de766384665b4ce69644ad99ca6
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id	oai:doaj.org-article:20e46de766384665b4ce69644ad99ca6
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spelling	oai:doaj.org-article:20e46de766384665b4ce69644ad99ca62021-11-08T15:53:27ZSeismic interaction analysis of deep excavation- piled foundation in soft soils2476-39772538-261610.22065/jsce.2018.122635.1501https://doaj.org/article/20e46de766384665b4ce69644ad99ca62021-01-01T00:00:00Zhttps://www.jsce.ir/article_77134_2933da804693655b1658793f76e2ebfc.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Dynamic interaction analysis of deep excavation-piled foundation in soft soils is studied. In this contribution, deep excavation is considered to be adjacent to the piled foundation. In fact, the interactive influences of a deep cavern and a piled foundation is studied. Loose sands and soft clayey layers are considered. Also, due to the significant effects of the pore water pressure on the soil strength, all sequences of excavations are accompanied with the seep analysis. In order to investigate the seismic effects of the excavation, time history analysis is performed. Therefore, the susceptibility of the loose sand layers to the soil liquefaction is studied. Due to the fact that frequency domain analysis is more acceptable that time domain analysis for transient phenomena, soil liquefaction is controlled in frequency domain analysis. Frequency domain analysis is considered using Fast Fourier Transform. In fact, the frequency domain informations of a saturated loose layers are compared in two different of stages. So, the frequency domain data for seismic ground response, before and after the excavation is shown to predict the soil liquefaction. All results demonstrate the meaningful influences of the excavation on the soil behavior and the structural piles. The results show that the structural beams, might fail due to the additional internal forces which are exerted on the piles during excavation stages.Abdolghafour KhademalrasoulNegar ZangenenejadIranian Society of Structrual Engineering (ISSE)articledeep excavationcavern-piled foundation interactionfrequency domain analysissoil liquefactionfftBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 7, Iss 4, Pp 148-169 (2021)
institution	DOAJ
collection	DOAJ
language	FA
topic	deep excavation cavern-piled foundation interaction frequency domain analysis soil liquefaction fft Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	deep excavation cavern-piled foundation interaction frequency domain analysis soil liquefaction fft Bridge engineering TG1-470 Building construction TH1-9745 Abdolghafour Khademalrasoul Negar Zangenenejad Seismic interaction analysis of deep excavation- piled foundation in soft soils
description	Dynamic interaction analysis of deep excavation-piled foundation in soft soils is studied. In this contribution, deep excavation is considered to be adjacent to the piled foundation. In fact, the interactive influences of a deep cavern and a piled foundation is studied. Loose sands and soft clayey layers are considered. Also, due to the significant effects of the pore water pressure on the soil strength, all sequences of excavations are accompanied with the seep analysis. In order to investigate the seismic effects of the excavation, time history analysis is performed. Therefore, the susceptibility of the loose sand layers to the soil liquefaction is studied. Due to the fact that frequency domain analysis is more acceptable that time domain analysis for transient phenomena, soil liquefaction is controlled in frequency domain analysis. Frequency domain analysis is considered using Fast Fourier Transform. In fact, the frequency domain informations of a saturated loose layers are compared in two different of stages. So, the frequency domain data for seismic ground response, before and after the excavation is shown to predict the soil liquefaction. All results demonstrate the meaningful influences of the excavation on the soil behavior and the structural piles. The results show that the structural beams, might fail due to the additional internal forces which are exerted on the piles during excavation stages.
format	article
author	Abdolghafour Khademalrasoul Negar Zangenenejad
author_facet	Abdolghafour Khademalrasoul Negar Zangenenejad
author_sort	Abdolghafour Khademalrasoul
title	Seismic interaction analysis of deep excavation- piled foundation in soft soils
title_short	Seismic interaction analysis of deep excavation- piled foundation in soft soils
title_full	Seismic interaction analysis of deep excavation- piled foundation in soft soils
title_fullStr	Seismic interaction analysis of deep excavation- piled foundation in soft soils
title_full_unstemmed	Seismic interaction analysis of deep excavation- piled foundation in soft soils
title_sort	seismic interaction analysis of deep excavation- piled foundation in soft soils
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2021
url	https://doaj.org/article/20e46de766384665b4ce69644ad99ca6
work_keys_str_mv	AT abdolghafourkhademalrasoul seismicinteractionanalysisofdeepexcavationpiledfoundationinsoftsoils AT negarzangenenejad seismicinteractionanalysisofdeepexcavationpiledfoundationinsoftsoils
_version_	1718441549836058624

Seismic interaction analysis of deep excavation- piled foundation in soft soils

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