Civil Engineering

Permanent URI for this collectionhttps://hdl.handle.net/10679/312

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Browsing by Author "Arama, Z. A."

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    Conference ObjectPublicationOpen Access
    A new embankment construction method through the analysis of possible failure mechanisms in soft soils
    (International Society for Soil Mechanics and Geotechnical Engineering, 2019) Arama, Z. A.; Çinicioğlu, Safiye Feyza; Civil Engineering; ÇİNİCİOĞLU, Safiye Feyza
    A new method to analyze the failure behavior of embankments on soft soils is proposed in this paper. The proposed method is based on the evaluation of stability considerations applied on a possible mechanism which can be initiated by embankment loading. The developed procedure is applied on a successive set of failure mechanisms that extend towards depth starting from the surface. The envisaged mechanism is made up of concentric half circles starting from the toe of the embankment and spreading towards the deeper soils. By partitioning the circular strips by a slip fan system originating from the center of concentric circles a system of collapse mechanism partitioned to produce finite elements is created. Available stress values at each element are found by applying the rules of the lower bound plasticity solution. Once the stresses and the dimensions of the constructed mechanism are defined stability calculations are made to find the critical depth that will result in failure for any desired embankment height. Moreover safety factors mobilized at lower depths can be calculated. © The authors and IGS: All rights reserved, 2019.
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    ArticlePublicationRestricted
    Yumuşak zeminler üzerinde dolgu inşasında temel zemini göçmesine dayalı tasarım yaklaşımı
    (TMMOB İnşaat Mühendisleri Odası, 2019-09) Arama, Z. A.; Çinicioğlu, Safiye Feyza; Civil Engineering; ÇİNİCİOĞLU, Safiye Feyza
    In order to tackle the difficulties encountered in embankment design and construction, a new design method for embankments on soft clays is proposed in this paper. The method approaches to the problem with the philosophy of allowing controllable failures at small depths. Foundation soils are scanned through by applying a limit equilibrium approach specifically developed for the embankment problem and considering different slip planes at various depths. The purpose is to find the depth and the location of the failure region which gives a safety factor value of unity and also values of the safety factors which were mobilized at different depths under an embankment of considered height. Numerical applications of the method are compared with the results of two different commercial software which are developed with finite element and limit state methods.