Paper Title:
Analysis on Stability of Subgrade Slope Influenced by Strength Attenuation
  Abstract

The water content in the subgrade changes easily as the variation of the environment water, which causes the strength attenuation of the subgrade. It is harmful to the stability of subgrade slope. Strength decay pattern of silt soil in yellow river alluvial plain is studied through the laboratory test. And then the finite element software GEO-SLOPE is used to calculate coefficient of stability under different conditions. Results show strength indexes of silt soil are maximum in the optimal water content, and the change of the water content would cause strength attenuation. The stability of subgrade slope decreases as the strength degradation, while the evolution is different, which is semi-parabolic in the lower subgrade but rectilinear in the higher subgrade. Seismic load leads to stress concentrate at the slope, combined with the strength attenuation the landslide is easily to take place.

  Info
Periodical
Advanced Materials Research (Volumes 243-249)
Edited by
Chaohe Chen, Yong Huang and Guangfan Li
Pages
4360-4365
DOI
10.4028/www.scientific.net/AMR.243-249.4360
Citation
X. M. Yi, S. G. Wang, X. G. Song, H. B. Zhang, "Analysis on Stability of Subgrade Slope Influenced by Strength Attenuation", Advanced Materials Research, Vols. 243-249, pp. 4360-4365, 2011
Online since
May 2011
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Price
$32.00
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