Geoteknik Mühendisliğinde 2016-2021 Yılları Arası Sıvılaşma Çalışmaları

Öz

Anahtar Kelimeler

• Sıvılaşma
• Deprem
• Laboratuvar Deneyleri

Liquefaction Studies In Geotechnical Engineering Between 2016-2021

Abstract

Deprem kaynaklı olarak gerçekleşen sıvılaşma olayı, geoteknik mühendisliğinin en önemli konularından biridir. Bu olay, depreme maruz kalan suya doygun, gevşek, kohezyonsuz zeminlerin artan boşluk suyu basıncından dolayı ani kayma mukavemeti kaybı yaşaması olarak özetlenebilir. Devirsel kayma gerilmelerinin etkisi ile aşırı boşluk suyu basıncı oluşmakta, zemin taneleri arasındaki bağın kaybolması ile zemin sıvı gibi davranmakta ve taşıma gücü kaybı yaşanmaktadır. Yapılar için, temel altı zeminde taşıma gücü kaybı yaşanması ağır neticeler doğurmaktadır. İlk kez Arthur Casagrande tarafından ortaya konulan sıvılaşma olgusu ile alakalı günümüzde hala araştırmalar devam etmektedir. Zeminlerin sıvılaşma potansiyelinin laboratuvar ve arazi testleri ile belirlenmesi, sıvılaşmaya karşı direncin arttırılması ve 3D modelleme çalışmalarına sıklıkla karşılaşılmaktadır. Bu çalışmada, geoteknik mühendisliği için büyük önem arz eden sıvılaşma konusu ile ilgili son beş yılda (2016-2021) yapılmış olan deneysel çalışmaların ve yeni yöntemlerin tanıtılması amaçlanmıştır.

Keywords

• Liquefaction
• Earthquake
• Laboratory Experiments

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