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Evaluation of Limit Equilibrium and Finite Element Methods in Slope Stability Analysis - Case Study of Zaremrood Landslide

Credit to Download: 1 | Page Numbers 12 | Abstract Views: 57
Year: 2018
COI code: CAUE05_045
Paper Language: English

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Authors Evaluation of Limit Equilibrium and Finite Element Methods in Slope Stability Analysis - Case Study of Zaremrood Landslide

  Ahad Bagherzadeh Khalkhali - Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.
  Mohsen Kabiri - Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran.

Abstract:

In general, landslides are events that occur, due to instability in the slope, causing the movement and displacement of an earth mass constituents from a slope to downward. Earth drift may occur due to underground activities or slope changes. One of the factors of the instability of the slopes is gravity, and therefore the main method of their stabilization is to reduce destructive force and increase the resistance force. Water is another cause of earth instability, which leads to degradation and erosion at the surface, and in deeper sections, in addition to erosion, it also causes pore water pressure and decreases soil resistance. Iran, with its mainly mountainous topography, tectonic activity and high seismicity, diverse geological and climatic conditions, has major natural conditions for creating a wide range of landslides. The resistance of earth surface against sliding is called slope stability. Slope stability analysis includes methods used to evaluate the equilibrium and safety conditions of natural and man-made slopes (embankments, open pit mines, excavations, etc.). The main purpose of these analyzes is to find critical areas with the potential of falling, investigate the possible failure mechanism, determine the slope sensitivity to various mechanisms, optimal slope design with respect to safety, achieving high reliability, observing economic aspects and designing possible options for slope retention. The choice of the correct method for analyzing slope stability depends on the location of the project and the probable failure mode. For having a right choice, it must be considered the strengths, weaknesses, and limitations inherent in each method. Before the advancement of the computer softwares, slope stability analyses were performed graphically or by manually calculating. Today, there are many software options available for engineers, such as limit equilibrium methods and numerical solutions. One of the most important challenges for users of these softwares is the difference between their results, in the estimation of the stability of a slope and the assessment of the factor of safety. This paper presents a case study of the contingency of landslide in an earth slope in the Zaremrood, Mazandaran, Iran. In this study, the results of the investigation of the limit equilibrium method used in Geostudio-SLOPE/W software have been compared with PLAXIS software which exploits finite element modeling method.

Keywords:

landslide, slope stability, limit equilibrium, finite element, numerical method

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COI code: CAUE05_045

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Bagherzadeh Khalkhali, Ahad & Mohsen Kabiri, 2018, Evaluation of Limit Equilibrium and Finite Element Methods in Slope Stability Analysis - Case Study of Zaremrood Landslide, The 5th National Conference on Recent Achievements in Civil Engineering, Architecture and Urban Development, تهران, موسسه آموزش عالي نيكان, https://www.civilica.com/Paper-CAUE05-CAUE05_045.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
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