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Advances in Civil Engineering
Volume 2017, Article ID 9897658, 9 pages
https://doi.org/10.1155/2017/9897658
Research Article

Design Diagrams for the Analysis of Active Pressure on Retaining Walls with the Effect of Line Surcharge

Shiraz Art Institute of Higher Education, Shiraz, Iran

Correspondence should be addressed to Mohammad Karim Faghirizadeh; moc.liamg@hedazirihgaf

Received 2 November 2016; Revised 15 February 2017; Accepted 5 March 2017; Published 2 May 2017

Academic Editor: Pier Paolo Rossi

Copyright © 2017 Mojtaba Ahmadabadi and Mohammad Karim Faghirizadeh. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

In this study, a formulation has been proposed to calculate the pressure on wall and determine the angle of failure wedge based on limit equilibrium method. The mentioned formulation is capable of calculating active pressure coefficient, culmination of forces in failure surface, and pressure distribution on wall with the effect of line surcharge. In addition, based on the proposed method, a simple formula has been proposed to calculate the angle of failure wedge by the effect of surcharge. Moreover, the proposed approach has the advantage of taking into account the effect of surcharge on elastoplastic environment by considering the parameters of soil and determining the extent to which the surcharge is effective in pressure distribution on the wall. However, in most previous methods and specifications, resultant lateral pressure from surcharge in elastic environment had been considered. Finally, based on the obtained results, the design diagrams for different soils and different surcharges have been proposed. According to these diagrams, pressure on wall, pressure distribution on wall, and angle of failure wedge will easily be achieved. Also, a computer program has been written in MATLAB software environment. Using the results of these codes, the pressure on wall with the effect of surcharge, the angle of failure wedge, and pressure distribution on wall will be determined.