Chapter
Jul 2, 2019
The Application of PLAXIS Software in Deformation Analysis of Shanghai Maglev Line Due to Nearby Foundation Pit Excavation
Publication: CICTP 2019
Abstract
The Shanghai maglev demonstration line is the first commercial operation line in the world. Many kinds of engineering such as foundation pits excavation, pavement widening, and shield tunnel crossing are constructed near this line. In this paper, a foundation pits project is illustrated and a finite elements analysis software specialized in geotechnical engineering (PLAXIS) is used to estimate the additional deformations of the maglev substructure. It is very important to select the appropriate soil constitutive model in the numerical simulation of foundation pit excavation. Conventional models (Mohr-Coulomb), hardening-soil constitutive models, and hardening soil models with small strain stiffness (HSS) will be analyzed and compared. Also, the deformation results are compared with the preset threshold values in order to provide a reference for the monitoring and protection of maglev line. The abovementioned works will be a reference for the influence analysis of construction projects near the maglev line.
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© 2019 American Society of Civil Engineers.
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Published online: Jul 2, 2019
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Master Student, Tongji Univ., No. 4800 Cao An Hwy., Jiading District, Shanghai 201804, China. E-mail: [email protected]
Associate Researcher, Tongji Univ., No. 4800 Cao An Hwy., Jiading District, Shanghai 201804, China. E-mail: [email protected]
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