Extended "Mononobe-Okabe" Method for Seismic Design of Retaining Walls. (30th September 2013)

• Record Type: Journal Article
• Authors: Yazdani, Mahmoud; Azad, Ali; Farshi, Abol hasan; Talatahari, Siamak
• Other Names: Zhang Ga Academic Editor.
• Is Part Of: Journal of applied mathematics. Volume 2013(2013)
• Publication Date: 2013-09-30
• Subjects: Mathematics -- Periodicals; 519.05
• DOI: 10.1155/2013/136132
• Languages: English
• ISSNs: 1110-757X

Abstract

Abstract : Mononobe-Okabe (M-O) method is still employed as the first option to estimate lateral earth pressures during earthquakes by geotechnical engineers. Considering some simple assumptions and using a closed form method, M-O solves the equations of equilibrium and suggests seismic active and passive lateral earth pressures. Therefore, the results are true in its assumption range only, and in many other practical cases, M-O method is not applicable. Noncontinues backfill slopes, cohesive soils, and rising water behind the wall are some well-known examples in which the M-O theory is irrelevant. Using the fundamental framework of M-O method, this study proposes an iterative method to overcome the limits of the M-O method. Based on trial and error process, the proposed method is able to cover many of the defects which regularly occur in civil engineering when M-O has no direct answer.