Paper Title:
Study on Stability of High Embankment with Strong Weathering Filling under Complicated Stress Conditions
  Abstract

Strength reduction elasto-plastic finite element analysis defines the reduction factor when slope has been destroyed as the slope stability factor of safety, which combines with strength reduction technique, the limit equilibrium theory and the principle of elastic-plastic finite element. Three-dimensional finite element analysis should be used in stability analysis of slope because it can overcome the short advantages of two-dimensional finite element and can simulate the complex topographic and geological conditions. Based on the large-scale triaxial shear test, the modified Duncan-Chang model is established. Based on strength reduction elasto-plastic finite element, stability of high fill embankment was studied with three-dimensional finite element method considering the complex terrain conditions. Study results suggest that plastic strain and displacement mutant of slip surface node can be a sign of slope instability as a whole. At the same time calculation of three-dimensional finite element also does not converge. Therefore, it can be slope instability criterion calculate whether the finite element static analysis converges or not. On the other hand, stability safety factor of high fill embankment under three-dimensional conditions is larger than that of two-dimensional conditions, which shows that boundary conditions of high fill embankment enhance its stability.

  Info
Periodical
Chapter
Chapter 1: Road and Railway Engineering
Edited by
Shucai Li
Pages
78-84
DOI
10.4028/www.scientific.net/AMM.97-98.78
Citation
S. C. Liu, "Study on Stability of High Embankment with Strong Weathering Filling under Complicated Stress Conditions", Applied Mechanics and Materials, Vols. 97-98, pp. 78-84, 2011
Online since
September 2011
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Da Zhao Yu, Yue Liang Chen, Zhong Hu Jia, Yong Gao, Wen Lin Liu
Abstract:Three-dimensional finite element model of a bolted joint has been developed in the non-linear finite element code MSC.Marc and attempts were...
3924
Authors: Bo Song, Hong Yu Shi, Li Dong Zhao, Jian Yun Yu
Chapter 7: Seismic Engineering
Abstract:Based on the large geometric deformation and nonlinear of material theories, the seismic responses of a double-layer spherical lattice shells...
2047
Authors: Hai Ying Hu, Xiao Wen Zhou, Zhi Xing Huang
Chapter 1: Geotechnical and Geological Engineering
Abstract:The soft soil in Pearl River Delta regions is characterized with high water content, high compressibility and low bearing capacity....
96