Modelling Study on the Geotextile, Geogrid and Steel Strip Reinforced Slopes

Yıl 2017, Cilt: 32 Sayı: 4, 227 - 240, 15.12.2017

Burak Evirgen , Mustafa Tuncan Ahmet Tuncan

https://doi.org/10.21605/cukurovaummfd.383447

Cited By: 2

Öz

Changing the natural conditions of soil creates unexpected stress
increments in slope stability projects, which are required high amount of soil excavation
near the highways and railways or braced cut systems. Some safety problems can
occur during this application under different loading cases. In addition, slope
stability design requires economical solutions. Slope-supporting structures
should be designed with most effective solution according to these signified
requirements. A slope stability problem considering deep excavations in front
of the reinforced soils are studied within this study in all its parts, after
an extensive review of the literature. Geotextile (GT), geogrid (GG) and steel
strip (SS) reinforcements are used to increase the stability conditions of
slope during both experimental procedure and modelling process with Plaxis
software. Each reinforcement type provided the bearing capacity enhancement and
showed that unique displacement behavior. Therefore, most effective
reinforcement member can be chosen in design procedure and construction phase
in the site according to the bearing capacity and displacement requirements
according to presented values.

Anahtar Kelimeler

Slope stability, Reinforced slope, Geotextile, Geogrid, -Steel strip

Geotekstil, Geogrid ve Çelik Şerit Donatılı Şevlerde Modelleme Çalışması

Öz

Zeminin doğal koşullarının değişmesi, yüksek
miktarda hafriyat gerektiren otoyol ve demiryolu kenarları veya destekli
kazılardaki şev stabilitesi projelerinde beklenmedik gerilme artışlarına neden
olmaktadır. Bu işlem sırasında farklı yükleme durumlarında bazı güvenlik
sorunları oluşabilmektedir. Ek olarak, şev stabilitesi tasarımı ekonomik çözüm
gerektirmektedir. Şev destek yapıları için bu önemli gereksinimler göz önünde
bulundurularak en efektif tasarım yapılmalıdır. Bu çalışmada; kapsamlı bir
literatür taramasının ardından, donatılı zemin yapısının ön kısmında yer alan
derin kazılar dikkate alınarak şev stabilitesi problemi tüm yönleriyle
incelenmiştir. Geotekstil (GT), geogrid (GG) ve çelik şerit (SS) donatılar, hem
deney sürecinde hem de Plaxis yazılımı ile modelleme aşamasında şevin stabilite
koşullarının arttırılması işleminde kullanılmıştır. Her donatı tipi zemin taşıma
kapasitesi artışı sağlamış ve kendine has yer değiştirme davranışı
göstermiştir. Dolayısıyla, sunulan değerlere göre taşıma kapasitesi ve yer
değiştirme gereklilikleri doğrultusunda, tasarım işlemi ve sahadaki inşa
sürecinde en efektif donatı elemanı seçilebilecektir.

Anahtar Kelimeler

Şev stabilitesi, Donatılı şev, Geotekstil, Geogrid, Çelik şerit

Kaynakça

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