A Study on the Effect of Flow Rule on the Bearing Capacity of Strip Foundations by Method of Stress Characteristics
Publish place: 7th Sympozium on Advances in Sience & Technology
Publish Year: 1391
Type: Conference paper
Language: English
View: 1,318
This Paper With 10 Page And PDF Format Ready To Download
- Certificate
- I'm the author of the paper
Export:
Document National Code:
SASTECH07_026
Index date: 21 July 2013
A Study on the Effect of Flow Rule on the Bearing Capacity of Strip Foundations by Method of Stress Characteristics abstract
Several methods can be employed to estimate the bearing capacity of shallow footings, e.g. the finite element method, the zero extension lines method, application of limit theorems, the method of stress characteristics and some different approaches. It is traditionally accepted that the bearing capacity of foundations are those obtained by an associated flow rule assumption. However, the angle of dilation,ψ , in the soils is usually much lower than the soil friction angle,ф . In fact, the non-associated flow rule governs the soil’s behavior in reality. Such property of soils has been considered in this study and the method of stress characteristics is used to compute the bearing capacity of strip foundations. The flow rule affects the size of the plastic zone beneath the foundations and leads lower values for the ultimate capacity. In this research a fully smooth contact for the footing-soil interface has been assumed. Results based on the method of stress characteristics have been compared to those available in the literature.
A Study on the Effect of Flow Rule on the Bearing Capacity of Strip Foundations by Method of Stress Characteristics Keywords:
A Study on the Effect of Flow Rule on the Bearing Capacity of Strip Foundations by Method of Stress Characteristics authors
Fatemeh Valikhah
M.Sc. Student in Geotech. Eng., Department of Civil Engineering, University of Guilan, Iran
Mehdi Veiskarami
Assistant Professor, Department of Civil Engineering, University of Guilan, Iran