Demiryolu dolgularının taşkın anındaki güvenliğinin değerlendirilmesi

Yıl 2018, Cilt: 24 Sayı: 3, 453 - 460, 29.06.2018

Melih Çalamak

Öz

Bu
çalışmada, geniş düzlük üzerine inşa edilen tipik bir demiryolu dolgusunun 200
yıllık tekerrür süresine sahip bir taşkın anındaki güvenliği sızma ve şev
stabilitesi analizleriyle incelenmiştir. Bu amaçla, dolgunun sonlu elemanlar
yöntemiyle sızma analizleri gerçekleştirilmiş, limit denge analizi yöntemiyle
memba ve mansap şevlerinin stabiliteleri değerlendirilmiştir. Elde edilen
sonuçlara göre demiryolu dolgusu taşkın anında sızmaya karşı güvenli
bulunmuştur. Dolgu, bu anda, demiryolu hattının işletilmediği durumda
şevlerinin kaymasına karşı da güvenli bulunmuştur. Ancak, demiryolu hattının
taşkın anında işletilmesinin şevlerin stabilite güvenliğini tehlikeye attığı
tespit edilmiştir.

Anahtar Kelimeler

Demiryolu dolgusu, Yapısal emniyet, Taşkın, Sızma analizi, Şev stabilitesi

Safety assessment of railway embankments during floods

Öz

In
this study, the safety of a typical railway embankment built on a large plain
subject to a 200-year return period flood investigated with seepage and slope
stability analyses. To this end, seepage analyses performed with finite element
method. Stability analysis conducted for upstream and downstream slopes using limit
equilibrium method. According to the results, the railway embankment found to
be safe against seepage during the flood. The embankment also found to be safe
against sliding of its slopes when the railway line was not in operation.
However, the operation of the railway line during the flood endangered the
safety of the stability of the slopes.

Anahtar Kelimeler

Railway embankment, Structural safety, Flood, Seepage analysis, Slope stability

Kaynakça

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