Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/13149
Title: Analysis of wedge stability using different methods
Authors: Wang, YJ
Yin, JH 
Chen, Z
Lee, CF
Keywords: Dilatancy
Factor of safety
Finite element method
Stability
Upper bound
Wedge
Issue Date: 2004
Source: Rock mechanics and rock engineering, 2004, v. 37, no. 2, p. 127-150 How to cite?
Journal: Rock Mechanics and Rock Engineering 
Abstract: The stability problem of a rock slope containing a wedge resting on two intersecting discontinuities is of great interest in rock slope engineering. It is a statistically indeterminate problem with two extra unknowns according to the force (stress) equilibrium analysis. The widely used limit equilibrium methods in practice assume that the directions of the shear forces acting on the two discontinuities are parallel to their line of intersection. The validity of this assumption, however, has not been verified theoretically. This paper presents a general limit equilibrium method that determines the directions of the shear forces by using Pan's "Maximum principle" and an upper bound method that applies the classic upper bound theorem of limit analysis to avoid making extra assumptions. The formulations of the two methods are derived. A non-symmetric wedge and a symmetric wedge are analyzed using the two derived methods. To further explore the influence on stability due to the direction of the shear force acting on the two discontinuities, three-dimensional finite-element analyses are also conducted. The results are compared and discussed.
URI: http://hdl.handle.net/10397/13149
ISSN: 0723-2632
DOI: 10.1007/s00603-003-0023-y
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

SCOPUSTM   
Citations

17
Last Week
0
Last month
0
Citations as of Aug 21, 2017

WEB OF SCIENCETM
Citations

14
Last Week
0
Last month
0
Citations as of Aug 20, 2017

Page view(s)

48
Last Week
3
Last month
Checked on Aug 20, 2017

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.