Study on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation

End resistance is a dominant variable in the sinking process of super-sized caisson foundation, which is of great importance to the safe sinking of the caisson foundation. Based on soil excavation process of super large caisson foundation of the main tower of Changtai Yangtze River Bridge, the distr...

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Autores principales:	Mingwei Guo, Xuechao Dong, Jiahang Li
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	caisson foundation sinking process earth pressure under the foot blade end resistance Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/82a8fc64d54d43ebbc9dcae4900018ce
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spelling	oai:doaj.org-article:82a8fc64d54d43ebbc9dcae4900018ce2021-11-11T15:25:32ZStudy on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation10.3390/app1121104882076-3417https://doaj.org/article/82a8fc64d54d43ebbc9dcae4900018ce2021-11-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10488https://doaj.org/toc/2076-3417End resistance is a dominant variable in the sinking process of super-sized caisson foundation, which is of great importance to the safe sinking of the caisson foundation. Based on soil excavation process of super large caisson foundation of the main tower of Changtai Yangtze River Bridge, the distribution characteristics and variation of earth pressure under the foot blade was analyzed using 3D finite element method at the first stage of soil excavation. Furthermore, the earth pressure was monitored in real time during soil excavation in order to analyze the influence of soil excavation process on the distribution of earth pressure. The analysis results of engineering practice showed that in the process of soil excavation from inner area to outer area, the end resistance of inner bulkhead and inner partition walls decreased, while the end resistance of outer bulkhead and outer partition walls gradually increased till the soil reached the failure state in the outer bulkhead area. The distribution characteristics and variation of the earth pressure can really reflect overall stress state of caisson foundation, which helps guide the safe sinking by soil excavation.Mingwei GuoXuechao DongJiahang LiMDPI AGarticlecaisson foundationsinking processearth pressure under the foot bladeend resistanceTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10488, p 10488 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	caisson foundation sinking process earth pressure under the foot blade end resistance Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	caisson foundation sinking process earth pressure under the foot blade end resistance Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Mingwei Guo Xuechao Dong Jiahang Li Study on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation
description	End resistance is a dominant variable in the sinking process of super-sized caisson foundation, which is of great importance to the safe sinking of the caisson foundation. Based on soil excavation process of super large caisson foundation of the main tower of Changtai Yangtze River Bridge, the distribution characteristics and variation of earth pressure under the foot blade was analyzed using 3D finite element method at the first stage of soil excavation. Furthermore, the earth pressure was monitored in real time during soil excavation in order to analyze the influence of soil excavation process on the distribution of earth pressure. The analysis results of engineering practice showed that in the process of soil excavation from inner area to outer area, the end resistance of inner bulkhead and inner partition walls decreased, while the end resistance of outer bulkhead and outer partition walls gradually increased till the soil reached the failure state in the outer bulkhead area. The distribution characteristics and variation of the earth pressure can really reflect overall stress state of caisson foundation, which helps guide the safe sinking by soil excavation.
format	article
author	Mingwei Guo Xuechao Dong Jiahang Li
author_facet	Mingwei Guo Xuechao Dong Jiahang Li
author_sort	Mingwei Guo
title	Study on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation
title_short	Study on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation
title_full	Study on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation
title_fullStr	Study on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation
title_full_unstemmed	Study on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation
title_sort	study on the earth pressure during sinking stage of super large caisson foundation
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/82a8fc64d54d43ebbc9dcae4900018ce
work_keys_str_mv	AT mingweiguo studyontheearthpressureduringsinkingstageofsuperlargecaissonfoundation AT xuechaodong studyontheearthpressureduringsinkingstageofsuperlargecaissonfoundation AT jiahangli studyontheearthpressureduringsinkingstageofsuperlargecaissonfoundation
_version_	1718435320951734272

Study on the Earth Pressure during Sinking Stage of Super Large Caisson Foundation

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