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Numerical Analysis on the Performance of the Underwater Excavation
Joint Authors
Li, Bo
Jia, Cangqin
Wang, Guihe
Ren, Jun
Lu, Gaofeng
Liu, Nannan
Source
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-11-10
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
Based on the Yongdingmen Station of Beijing Metro, the underwater excavation method for deep foundation pit was introduced.
This study constructed a numerical analysis model to analyze the performance of surface settlement and lateral wall deflection in the process of underwater excavation.
Results showed that this method was better to control the surface settlement and lateral wall deflection compared with other dewatering excavations.
In detail, most of the surface settlement was caused during the dry excavation stage and dewatering excavation stage while the deflection caused by underwater excavation only accounted for about 10% of the total settlement.
Besides, the maximum settlement occurred 0.25∼0.5 He behind the retaining wall and the value was 0.04% He.
Similar to the result of the surface settlement, most of the lateral wall deflection had been completed before the underwater excavation, which only caused about 7% of the total deflection.
The maximum wall deflection and its location were approximately 0.06% He and 0.5 He, respectively.
Moreover, a series of 3D numerical analyses were studied on the design parameters of the underwater excavation method.
This study can be used as a reference for general performance and structural design of foundation pits with underwater excavation.
American Psychological Association (APA)
Li, Bo& Jia, Cangqin& Wang, Guihe& Ren, Jun& Lu, Gaofeng& Liu, Nannan. 2020. Numerical Analysis on the Performance of the Underwater Excavation. Advances in Civil Engineering،Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1125561
Modern Language Association (MLA)
Li, Bo…[et al.]. Numerical Analysis on the Performance of the Underwater Excavation. Advances in Civil Engineering No. 2020 (2020), pp.1-14.
https://search.emarefa.net/detail/BIM-1125561
American Medical Association (AMA)
Li, Bo& Jia, Cangqin& Wang, Guihe& Ren, Jun& Lu, Gaofeng& Liu, Nannan. Numerical Analysis on the Performance of the Underwater Excavation. Advances in Civil Engineering. 2020. Vol. 2020, no. 2020, pp.1-14.
https://search.emarefa.net/detail/BIM-1125561
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1125561