Farklı İstinat Duvar Tiplerinde Aktif Toprak Basınçlarının Sayısal Analizi

Year 2019, Volume: 12 Issue: 3, 1666 - 1677, 31.12.2019

Hakan Alper Kamiloğlu , Erol Şadoğlu , Fatih Yılmaz

https://doi.org/10.18185/erzifbed.649503

Cited By: 1

Abstract

Dayanma yapılarının tasarımında yatay toprak basıncı
dağılımı önem arz etmektedir. Birçok çalışmada, dayanma yapısına etkiyen aktif
toprak basınç dağılımı nonlineer olarak kabul edilir. Toprak basınç dağılışı
ile ilgili çok sayıda çalışma olmasına karşın, Duvar boyutlarının yatay toprak
basıncı dağılışı üzerine etkilerini irdeleyen az sayıda çalışma bulunmaktadır.
Bu çalışmada, duvar şeklinin aktif yanal toprak basınç dağılımı ve aktif
kırılma yüzeyleri üzerine etkisi incelenmiştir. Bu nedenle çeşitli tip dayanma
duvarlarına gelen yanal toprak basınç dağılışları ve oluşturdukları kırılma
yüzeyleri numerik olarak irdelenmiştir. Yapılan çalışma kapsamında, çeşitli
eğimlerdeki ağırlık tipi dayanma duvarları, farklı topuk uzunlukları ve eğime
sahip ters T biçimli dayanma duvarları göz önüne alınmıştır. Yapılan çalışma
sonucunda yanal toprak basınç dağılışının duvar tipine göre değiştiği
belirlenmiştir. Buna ek olarak duvar eğimi ve topuk uzunluğunun kırılma
yüzeyleri ve yanal toprak basınç dağılışı üzerinde etkili olduğu görülmüştür. 

Keywords

kırılma yüzeyi yatay toprak basınç dağılışı, , uzun topuk, kısa topuk

Numerical Analysis of Active Earth Pressures on Various Types of Retaining Walls

Abstract

Lateral earth pressure distribution
is crucial in retaining structure design. In most studies, active earth
pressure distribution acting on the retaining structure is supposed as
nonlinear. Despite there are many studies about earth pressure distribution,
there are limited number of studies considering effect of wall geometry on
lateral earth pressure distribution. In this study, it is aimed to examine
effect of wall geometry on active failure surfaces and lateral earth pressure
distribution. Thus, active failure surface and active lateral earth pressure distribution
of various types of retaining wall were examined numerically. Within scope of
the analysis a gravity retaining wall with various inclinations, inverted T
type cantilever retaining wall and gravity wall with various heel lengths were
considered. The effect of wall inclination and heel length on failure mechanism
and lateral earth pressure distribution was studied. As a result of the study
it is shown that lateral earth pressure distribution varies based on wall type.
Additionally, short heel and long heel cases are effective on earth pressure
distribution. 

Keywords

failure surface, lateral earth pressure distribution, long heel, short heel

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