Kalabak Tepe Kireçtaşlarının Nihai Taşıma Gücünün Farklı Analiz Yöntemleri ile Araştırılması

Yıl 2024, , 236 - 259, 30.04.2024

Tümay Kadakci Koca , Mehmet Kuruoğlu , Ekin Köken , Cem Kıncal

https://doi.org/10.53433/yyufbed.1308564

Öz

Farklı kütle özelliklerine sahip kayaç kütlelerinin taşıma gücünü en doğru şekilde tahmin eden yöntemlerin seçiminde karşılaştırmalı çalışmalar önem kazanmaktadır. Hangi yöntemin daha sağlam sonuçlar verdiği dayandıkları parametrelerle ilişkili olmaktadır. Bu çalışmada, Miyosen yaşlı Kalabak Tepe (İzmir) kireçtaşlarının taşıma gücü incelemesi değişik yöntemler uygulanarak gerçekleştirilmiştir. Kayaç kütle özellikleri Genelleştirilmiş Hoek-Brown yenilme ölçütü dikkate alınarak belirlenmiştir. Taşıma gücü için uygun yöntemlerin belirlenmesinde arazi modeli ve süreksizliklerin konumları dikkate alınmıştır. Kayacın kütle dayanım parametreleriyle birlikte limit analiz veya sonlu elemanlar yöntemlerinin taşıma gücü analizlerinde kullanılması uygun bir yaklaşım olmaktadır. Sonlu elemanlar yöntemiyle kireçtaşlarının nihai taşıma gücü, limit analiz yöntemlerinden elde edilenlerle karşılaştırılmıştır. Sonuç olarak, bazı limit analiz yöntemlerinden elde edilen sonuçlar, sonlu elemanlar ve diğer limit analiz yöntemlerinden elde edilenlerden daha yüksek bulunmuştur. Yöntemler arasındaki bulgu farklılıkları detaylıca tartışılarak yöntemlerin pratik kullanımına ışık tutulmuştur.

Anahtar Kelimeler

Kireçtaşı, Limit analiz, Sonlu elemanlar yöntemi, Taşıma gücü analizi, Temel kireç taşı, Veri analizi

Investigation of the Bearing Capacity of Kalabak Tepe Limestones by the Various Analysis Methods

Öz

Comparative studies play a crucial role in choosing the most accurate method to estimate the bearing capacity of rock masses with different mass characteristics. The robustness of these methods is closely related to the parameters involved in the method. In this study, bearing capacity analysis of the Miocene aged Kalabak Tepe (Izmir) limestone was performed by using different methods. The Generalized Hoek-Brown failure criterion was used to determine the properties of the rock mass. When selecting the best approach to estimate bearing capacity, we also considered the field model and orientation of the discontinuities. Limit equilibrium or finite element methods incorporating the rock mass strength parameters in bearing capacity analyses becomes a promising approach. We compared the results obtained from finite elements and limit analysis methods. Consequently, some limit analysis methods yielded greater bearing capacity than the other limit analysis and finite element methods. The differences in the findings among the methods were thoroughly discussed to shed light on the practical usage of the methods.

Anahtar Kelimeler

Bearing capacity analysis, Data analysis, Finite elements method, Foundation, Limestone, Limit analysis

Kaynakça

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