Paper Title:
Analysis of Failure Modes and Mechanism of Subgrade under Earthquakes and Recommendations for Improving Seismic Design
  Abstract

To study the seismic failure effect of subgrade, the field investigation and analysis of seismic failure of the subgrade are conducted. six seismic failure modes of the subgrade are proposed, (1) shallow surface sliding of slope, (2) development of slip surface within the body of subgrade, (3) development of slip surface reaching the foundation, (4) overall sliding of sloping subgrade, (5) slumping, and (6) desification. Meanwhile, the investigation shows that seismic subsidence rate and wave-like deformation amplitude rise with the increase of seismic intensity, the degree of subgrade damage is closely related to the characteristics of route selection. The research has analyzed the seismic damage mechanism of the subgrade, explores a new concept of seismic design based on allowable deformation proposed by Ikuo Towhata.

  Info
Periodical
Chapter
Chapter 1: Vibration Engineering
Edited by
Paul P. Lin and Chunliang Zhang
Pages
398-402
DOI
10.4028/www.scientific.net/AMM.105-107.398
Citation
Q. Su, J. J. Huang, S. Y. Li, H. X. Hu, "Analysis of Failure Modes and Mechanism of Subgrade under Earthquakes and Recommendations for Improving Seismic Design", Applied Mechanics and Materials, Vols. 105-107, pp. 398-402, 2012
Online since
September 2011
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Price
$32.00
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