Numerical Analysis of Metro Tunneling-Induced Stratum Deformation and Settlement by Using FLAC3D

Author

Chengping, Zhang ; Limin, Li ; Haoran, Song ; Dingli, Zhang

Author_Institution

Tunnel & Underground Eng. Res. Center of Minist. of Educ., Beijing Jiaotong Univ., Beijing, China

Volume

2

fYear

2010

fDate

11-12 May 2010

Firstpage

817

Lastpage

820

Abstract

Constructing metro tunnel in shallow stratum destroys surrounding stratum structure, causing corresponding deformation and settlement of stratum. So it´s very important to accurately predict stratum deformation and settlement for metro tunneling. In this paper, the features of FLAC^3D and built-in material constitutive model are firstly analyzed, then compared with other calculating procedures, besides it is used to predict stratum deformation and settlement caused by the Shenzhen metro tunneling. It can be seen from the numerical results of the calculation obtained from FLAC^3D that stratum deformation and settlement agree well with that of in-situ measurement, and can reflect the typical characteristics and change laws of stratum deformation and settlement caused by metro tunneling, which indicates that using FLAC^3D to analyze stratum deformation and settlement caused by metro tunneling is feasible.

Keywords

civil engineering computing; deformation; finite difference methods; tunnels; FLAC^3D; material constitutive model; metro tunneling induced stratum deformation; numerical analysis; Concrete; Corrosion; Deformable models; Elasticity; Numerical analysis; Shape; Softening; Soil; Steel; Tunneling; FLAC numerical calculation; metro tunneling; stratum deformation; stratum settlement;

fLanguage

English

Publisher

ieee

Conference_Titel

Intelligent Computation Technology and Automation (ICICTA), 2010 International Conference on

Conference_Location

Changsha

Print_ISBN

978-1-4244-7279-6

Electronic_ISBN

978-1-4244-7280-2

Type

conf

DOI

10.1109/ICICTA.2010.218

Filename

5522749