Sürdürülebilir Kalkınma Amaçları

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Yazarlar

• Akgun, A.(1)
• Alemdag, S.(1)
• Bulut, Fikri(1)
• Dağ, Serhat(1)
• Gokceoglu, C.(1)
• Kaya, A.(1)
• Kaya, Ayberk(1)

• MakaleYalnız künye2018Scopus SJRQ2/r/gumushane/13402
  Bearing capacity and slope stability assessment of rock masses at the Subasi viaduct site, NE, Turkey

  Kaya, Ayberk; Bulut, Fikri; Dağ, Serhat

  This study investigates the bearing capacity of rock masses and stability of slopes at the Subasi viaduct site which is a part of the improvement project of the Artvin–Hopa government highway between KM 6 + 500 and 13 + 787 in NE Turkey. The geotechnical studies were performed in three stages. Firstly, the bearing capacity of moderately weathered andesitic tuff was evaluated using the empirical equations. Secondly, the major principal stress and vertical displacement due to the viaduct and traffic loadings at the level of foundations were determined by the finite element method (FEM). The vertical displacement value and comparison of bearing capacity and major principal stress show that any problem is not expected at the viaduct site in terms of the bearing capacity. Finally, the stability of slopes at the viaduct site was investigated using kinematic, limit equilibrium, and finite element method-based shear strength reduction analyses methods. It was concluded that no discontinuity controlled failures at the slopes are expected. However, a circular failure is possible to occur at the face slope excavated in highly weathered andesitic tuff. After support application, the long-term stabilization of face slope has been achieved. Consequently, it is suggested that the empirical, analytical, and numerical methods should be combined for a more reliable construction design.

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  AtıfScopus6·WoS5·OpenAlex10

  İncele
• MakaleYalnız künye2014Scopus SJRQ2/r/gumushane/12066
  A large and rapid planar failure: Causes, mechanism, and consequences (Mordut, Gumushane, Turkey)

  Alemdag, S.; Akgun, A.; Kaya, A.; Gokceoglu, C.

  Gumushane is a small city located on highway connecting the harbour city Trabzon in the Black Sea Region of Turkey to the Eastern Anatolia. Following an excavation to create an area for housing on the northeast side of this highway, a large and rapid planar failure inclined to the southwest occurred. A large amount of fractured and weathered granitic material moved downward over this planar failure. After the failure, the highway was closed to traffic for 1 week, and more than ten houses on top of this failure were collapsed completely. The present study aims to investigate the mechanism of this failure. The study was performed using kinematical, limit equilibrium and numerical analyses for both post- and pre-failure conditions. Based on the detailed field observations, the failure mode was determined to be planar, and the slide mechanism was determined to be controlled by three fault planes. As a result of these analyses, it can be concluded that the slope before failure had critical conditions and that the excavation and uncontrolled blasting triggered and accelerated the slope failure.

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  AtıfScopus45·WoS42·OpenAlex56

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