Analysis of Face Stability during Excavation of Double-O-Tube Shield Tunnel
Joint Authors
Yang, Yuyou
Zhou, Qinghong
Li, Hongan
Huang, Xuegang
Tu, Xiaoming
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-09-23
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Medicine
Information Technology and Computer Science
Abstract EN
This paper focuses on the face stability analysis of Double-O-Tube shield tunnel.
This kind of analysis is significant to ensure the safety of workers and reduce the influence on the surrounding environment.
The key point of the stability analysis is to determine the supporting pressure applied to the face by the shield.
A collapse failure will occur when the supporting pressure is not sufficient to prevent the movement of the soil mass towards the tunnel.
A three-dimensional collapse failure mechanism was presented in this paper.
Based on the mechanism of a single circular shield tunnel, the mechanism of Double-O-Tube shield tunnel was established by using the fact that both of the mechanisms are symmetrical.
Then by means of the kinematic theorem of limit analysis, the numerical results were obtained, and a design chart was provided.
The finite difference software FLAC3D was applied to investigate the face failure mechanism of DOT shield tunnel established in this paper; the critical supporting pressures of the collapse failure mechanism in different strata (sand and silt) were calculated.
Through comparative analysis, the theoretical values were very close to the numerical values.
This shows that the face failure mechanism of DOT shield tunnel is reasonable, and it can be applied to the sand and silt strata.
American Psychological Association (APA)
Yang, Yuyou& Zhou, Qinghong& Li, Hongan& Huang, Xuegang& Tu, Xiaoming. 2013. Analysis of Face Stability during Excavation of Double-O-Tube Shield Tunnel. The Scientific World Journal،Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1012871
Modern Language Association (MLA)
Yang, Yuyou…[et al.]. Analysis of Face Stability during Excavation of Double-O-Tube Shield Tunnel. The Scientific World Journal No. 2013 (2013), pp.1-11.
https://search.emarefa.net/detail/BIM-1012871
American Medical Association (AMA)
Yang, Yuyou& Zhou, Qinghong& Li, Hongan& Huang, Xuegang& Tu, Xiaoming. Analysis of Face Stability during Excavation of Double-O-Tube Shield Tunnel. The Scientific World Journal. 2013. Vol. 2013, no. 2013, pp.1-11.
https://search.emarefa.net/detail/BIM-1012871
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1012871