Killerde Özel Bir Zamana Bağlı Deformasyon Türü: Ozmotik Sıkışma

Yıl 2023, Cilt: 4 Sayı: 1, 28 - 42, 15.06.2023

Uğur Eren Yurtcan

Öz

Kil kimyasal etkileşimi üzerine yapılan birçok çalışma, kil numunelerin tamamen kimyasal etkisine maruz kalması sağlanarak yürütülmektedir. Ancak killerin kirleticilerle teması, sızma sürecinin de dahil olduğu zaman alan tedrici bir süreçtir. Örneğin tsunamilerle denizel kil olmasına rağmen yıllarca tuzlu su etkisinden uzak olan kil zeminlerin deniz suyuyla buluşması olası hale gelmektedir. Deniz suyu ile etkileşime geçen kil zeminler üzerinde inşa edilmiş yapılarda ilave oturmalar gerçekleşmesi olası hale gelmektedir. Bu nedenle kil zeminlerde görülebilen ozmotik sıkışma olgusunun iyi anlaşılması önem kazanmaktadır. Çalışma kapsamında killere özel bir davranış olan zamana bağlı deformasyonun özel bir türü olan ozmotik sıkışma konu alınmıştır. Kapsamlı bir konu olan kilin ozmotik etkiyle sıkışması, kilin su tutma mekanizmaları, yapı ve doku, zamana bağlı deformasyon davranışının esasları, killerde ozmotik etkinin temel mekanizmaları, ozmotik sıkışmanın tahmini ve ilgili teorinin kullanılabilirliği izah edilmeye çalışılmıştır.

Anahtar Kelimeler

Ozmotik sıkışma, kil-kimyasal etkileşim, konsolidasyon, su adsorpsiyonu, Osmotic compression, clay-chemical interaction, consolidation, water adsorption

A Special Type of Time-Dependent Deformation in Clays: Osmotic Compression

Öz

Many studies on the chemical interaction of clay are carried out by ensuring that the clay samples are completely exposed to the chemical effect. However, the contact of clays with pollutants is a gradual process that takes time, including the infiltration process. For example, with tsunamis, it becomes possible for clay soils, which have been away from the effect of salt water for years, to meet with sea water, although it is marine clay. It becomes possible for additional settlements to occur in structures built on clay soils that interact with sea water.For this reason, it is important to understand well the osmotic compression phenomenon that can be seen in clay soils. Within the scope of the study, osmotic compression that is a special type of time-dependent deformation, which is a behavior specific to clays, is discussed. It has been tried to explain the osmotic compression of clay, which is a comprehensive subject, the water retention mechanisms of the clay, the structure and fabric, the principles of time-dependent deformation behavior, the basic mechanisms of the osmotic effect in clays, the estimation of osmotic compression and the usability of the related theory.

Anahtar Kelimeler

Osmotic compression, clay-chemical interaction, consolidation, water adsorption

Kaynakça

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