Paper Title:
Seismic Design and Analysis of Large-Size Shield Tunnels. Part II: Modified Stiffness Solution
  Abstract

According to the extensive application of shield tunnel, large-diameter shield tunnel in particular, a simplified seismic design method is in urgent need. The equivalent static method is more suitable for the rigid underground structure, rather than flexible structure such as large-diameter shield tunnel. In this paper, shield tunnels with different diameters and thicknesses are analyzed and calculated by time-history method and free field deformation method. The calculation and analysis above help to identify the stiffness ratio to measure the relationship of structure’s stiffness and soil’s stiffness and the derivation of a revised stiffness solution based on the free field deformation method. The results indicate that this method can calculate seismic stress of shield tunnels with different diameters and thicknesses accurately.

  Info
Periodical
Chapter
Chapter 5: Road and Bridge Engineering
Edited by
Paul P. Lin and Chunliang Zhang
Pages
1308-1312
DOI
10.4028/www.scientific.net/AMM.105-107.1308
Citation
L. Y. Liu, Z. Y. Chen, Y. Yuan, "Seismic Design and Analysis of Large-Size Shield Tunnels. Part II: Modified Stiffness Solution", Applied Mechanics and Materials, Vols. 105-107, pp. 1308-1312, 2012
Online since
September 2011
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Price
$32.00
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