Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/32007
Title: Influence of a nonlinear failure criterion on the bearing capacity of a strip footing resting on rock mass using a lower bound approach
Authors: Yang, X
Yin, JH 
Li, L
Keywords: Bearing capacity
HB failure criterion
Lower bound theorem
Rock
Stress leg
Issue Date: 2003
Source: Canadian geotechnical journal, 2003, v. 40, no. 3, p. 702-707 How to cite?
Journal: Canadian Geotechnical Journal 
Abstract: The strength envelope of almost all geomaterials is nonlinear when one considers a wide range of stresses. Therefore, a nonlinear failure criterion needs to be used in stability analysis whenever the effects of nonlinearity are too significant to be neglected. This paper presents a lower bound solution to the bearing capacity calculation of a strip footing resting on a homogenous weightless rock mass using the nonlinear Hoek-Brown (HB) failure criterion. Two types of admissible stress fields are used to develop solutions. The first stress field has three stress legs. The second stress field has a spiral-like shape with n stress legs, where n may vary from 9 to 18 000 (even to infinity). Using two admissible stress fields, equations are derived and used for the calculation of lower bound bearing capacity values of a strip footing on rock mass. The influences of the admissible stress leg number n and the material parameter s in the nonlinear HB failure criterion are investigated. It is found that the lower bound bearing capacity calculated using the spiral-like shape admissible stress field approaches to the true optimum value as the stress leg number n increases, and the nonlinear material parameter s has a strong influence on the bearing capacity of the footing.
URI: http://hdl.handle.net/10397/32007
ISSN: 0008-3674
DOI: 10.1139/t03-010
Appears in Collections:Journal/Magazine Article

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

SCOPUSTM   
Citations

18
Last Week
0
Last month
0
Citations as of Jun 25, 2017

WEB OF SCIENCETM
Citations

11
Last Week
0
Last month
0
Citations as of Jun 21, 2017

Page view(s)

25
Last Week
0
Last month
Checked on Jun 25, 2017

Google ScholarTM

Check

Altmetric



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