Akademik Veri Yönetim Sistemi
Tezin Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, Türkiye
Tezin Onay Tarihi: 2024
Tezin Dili: İngilizce
Öğrenci: MAHAM BASHARAT
Danışman: Nabi Kartal Toker
Açık Arşiv Koleksiyonu: AVESİS Açık Erişim Koleksiyonu
Özet:
The city of Ankara is home to predominantly clays which are highly plastic, very stiff and fissured. Moreover, water table is encountered at a depth of 15m. This essentially means that the prevalent soil of Ankara is unsaturated clay. The behavior of unsaturated soils is quite different than that of saturated soils, mainly due to the influence of suction. For this reason, it is imperative that the behavior of Ankara soils be studied in detail under various modes of stress and suction loadings. This study investigates the unsaturated behavior of Ankara clay subject to various loadings at various degrees of saturation. Samples were collected from all over the region and tests were performed to determine their crucial properties as well as behavior. The results of the tests demonstrate the high values of suction Ankara clay can have even when fully saturated (~38 MPa). They also provide insight into the unexpectedly low increase in shear and compressive strength with a decrease in the degree of saturation. Finally, an attempt to model the behavior of Ankara clay using the Barcelona Basic Model (BBM) was carried out. Results of the calibration prove that BBM fails to accurately capture the brittle behavior of Ankara clay at high suctions.