Stability determination for layered soil slopes using the upper bound limit analysis

被引:87
作者
Kumar J. [1 ]
Samui P. [1 ]
机构
[1] Department of Civil Engineering, Indian Institute of Science
关键词
Failure; Limit analysis; Numerical modelling; Plasticity; Slopes;
D O I
10.1007/s10706-006-7172-1
中图分类号
学科分类号
摘要
By using the upper bound limit analysis, a method has been proposed in this article to compute stability numbers for layered soil slopes. The rupture surface was assumed to be a combination of different logarithmic spiral arcs with a common focus. The analysis ensures the kinematic admissibility of the collapse mechanism with respect to the rigid rotation of the bounded soil mass about the focus of the logarithmic spiral. For the sake of illustration, the computations, however, were exclusively performed only for a two layered soil slope. The effect of the pore water pressure and horizontal earthquake body forces was also incorporated in the computations. The computational procedure was validated by making a comparison of the obtained stability numbers with those reported in literature. © Springer 2006.
引用
收藏
页码:1803 / 1819
页数:16
相关论文
共 17 条
[1]  
Bishop A.W., The use of slip circle in the stability analysis of slopes, Géotechnique, 5, 1, pp. 7-17, (1955)
[2]  
Bishop A.W., Morgenstern N.R., Stability coefficients for earth slopes, Géotechnique, 10, 4, pp. 129-150, (1960)
[3]  
Chen W.F., Giger M.W., Fang H.Y., On the limit analysis of stability of slopes, Soils and Foundations, 9, 4, pp. 23-32, (1969)
[4]  
Chen W.F., Liu X.L., Limit Analysis in Soil Mechanics, (1990)
[5]  
Drescher A., Detournay E., Limit load in translational failure mechanisms for associated and non-associated materials, Géotechnique, 43, 3, pp. 443-456, (1993)
[6]  
Fellenius W., Calculation of stability of earth dams, Transactions Second Congress on Large Dams, 4, pp. 445-463, (1936)
[7]  
Karal K., Application of energy method, Journal of Geotechnical Engineering-ASCE, 103, 5, pp. 381-399, (1977)
[8]  
Karal K., Energy method for soil stability analyses, Journal of Geotechnical Engineering-ASCE, 103, 5, pp. 431-447, (1977)
[9]  
Kumar J., Slope stability calculations using limit analysis, ASCE Special Publication, 101, pp. 239-249, (2000)
[10]  
Kumar J., Uplift resistance of strip and circular anchors in a two layered sand, Soils and Foundations, Japanese Geotechnical Society, 43, 1, pp. 101-107, (2003)