IMPROVEMENT OF GROUND-SUPPORT PERFORMANCE BY FULL CONSIDERATION OF GROUND DISPLACEMENTS
A conceptual description of the ground behaviour around a tunnel and a quantitative analysis of the effects of the more important factors that influence tunnel support loads are presented. Axisymmetric finite element models of the advancing tunnel were used for the quantitative analysis. The variables considered in the investigation were the relative stiffness of the ground and the support, the constitutive behavior of the ground, and the delay of support installation. The conclusions of the study are that decreasing the relative stiffness of the support or increasing the delay of the support installation generally reduces the forces in the tunnel support but at the same time may induce greater amounts of detrimental yielding in the ground mass. Comments on the optimization or minimization of tunnel support loads are also included. /Author/
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- Summary URL:
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/issn/03611981
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Supplemental Notes:
- This paper appeared in TRB Research Record No. 684, Tunneling and Underground Structures. Distribution, posting, or copying of this PDF is strictly prohibited without written permission of the Transportation Research Board of the National Academy of Sciences. Unless otherwise indicated, all materials in this PDF are copyrighted by the National Academy of Sciences. Copyright © National Academy of Sciences. All rights reserved.
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Authors:
- Schwartz, C W
- Einstein, H H
- Publication Date: 1978
Media Info
- Media Type: Digital/other
- Features: Figures; References; Tables;
- Pagination: pp 14-20
- Monograph Title: Tunneling and Underground Structures
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Serial:
- Transportation Research Record
- Issue Number: 684
- Publisher: Transportation Research Board
- ISSN: 0361-1981
Subject/Index Terms
- TRT Terms: Dislocation (Geology); Finite element method; Ground settlement; Loads; Mathematical models; Soil mechanics; Soil structure interaction; Soils; Stiffness; Studies; Tunnel lining; Tunnel supports; Tunneling
- Uncontrolled Terms: Ground; Loading
- Subject Areas: Bridges and other structures; Construction; Geotechnology; Highways;
Filing Info
- Accession Number: 00196624
- Record Type: Publication
- ISBN: 0309028299
- Files: TRIS, TRB
- Created Date: Aug 28 1979 12:00AM