Computers and Concrete

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Computer modeling of crack propagation in concrete retaining walls: A case study

  • Azarafza, Mehdi (Department of Computer Engineering, Faculty of Electrical & Computer Engineering, University of Tabriz) ;
  • Feizi-Derakhshi, Mohammad-Reza (Department of Computer Engineering, Faculty of Electrical & Computer Engineering, University of Tabriz) ;
  • Azarafza, Mohammad (Department of Geology, University of Isfahan)
  • Received : 2016.11.25
  • Accepted : 2017.01.20
  • Published : 2017.05.25
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Abstract

Concrete retaining walls are the most common types of geotechnical structures for controlling instable slopes resulting from lateral pressure. In analytical stability, calculation of the concrete retaining walls is regarded as a rigid mass when its safety is required. When cracks in these structures are created, the stability may be enforced and causes to defeat. Therefore, identification, creation and propagation of cracks are among the important steps in control of lacks and stabilization. Using the numerical methods for simulation of crack propagation in concrete retaining walls bodies are among the new aspects of geotechnical analysis. Among the considered analytical methods in geotechnical appraisal, the boundary element method (BEM) for simulation of crack propagation in concrete retaining walls is very convenient. Considered concrete retaining wall of this paper is Pars Power Plant structured in south side in Assalouyeh, SW of Iran. This wall's type is RW6 with 11 m height and 440 m length and endurance of refinery construction lateral forces. To evaluate displacement and stress distributions (${\sigma}_{1,max}/{\sigma}_{3,min}$), the surrounding, especially in tip and its opening crack BEM, is considered an appropriate method. By considering the result of this study, with accurate simulation of crack propagation, it is possible to determine the final status of progressive failure in concrete retaining walls and anticipate the suitable stabilization method.

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