Study of Ground Settlement of Tunnel Shield Construction in Loess Area

Author

Chen Yuchao ; Wang Lu

Author_Institution

Sch. of Civil Eng. & Archit., Nanyang Normal Univ., Nanyang, China

fYear

2009

fDate

2-3 May 2009

Firstpage

25

Lastpage

28

Abstract

To study the characteristics of ground settlement of tunnel shield construction in loess area, considering the particularity of loess area, a 3D numerical simulation software named FLAC3D is used to calculate the ground settlement of tunnel shield construction. Distribution law of transversal and longitudinal settlement, deformation characteristics of subway structure and surrounding rocks in the condition of soaking and not soaking loess soil are studied in the paper. According to the numerical simulation results, general law of ground settlement in loess area can be summarized finally. The analysis results may have some guiding significance for the design and construction of metro tunnel in loess area.

Keywords

construction industry; geotechnical engineering; structural engineering computing; tunnels; 3D numerical simulation software; FLAC3D; ground settlement; loess soil; longitudinal settlement; subway structure; transversal settlement; tunnel shield construction; Boundary conditions; Cities and towns; Civil engineering; Computer architecture; Geology; Land surface; Numerical simulation; Soil; Stress; Tail; ground settlement; loess tunnel; numerical simulation; shield construction;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering Computation, 2009. ICEC '09. International Conference on

Conference_Location

Hong Kong

Print_ISBN

978-0-7695-3655-2

Type

conf

DOI

10.1109/ICEC.2009.46

Filename

5167082