Tez Türü: Yüksek Lisans
Tezin Yürütüldüğü Kurum: Orta Doğu Teknik Üniversitesi, Mühendislik Fakültesi, İnşaat Mühendisliği Bölümü, Türkiye
Tez Danışmanı: Prof. Dr. Erdil Rıza Tuncer
Tezin Onay Tarihi: 1984
Tezin Dili: İngilizce
Özet:
The objective of this thesis is to study the internal erosion phenomenon taking place in earth dams and earth embankments.
For this purpose, eight different soils are studied from seven different dam sites in Turkey. A pinhole test apparatus is manufactured and all soils are subjected to testing. In addition, the dispersion characteristics of soils are also examined by Soil Conservation Service dispersion (double hydrometer) test, chemical tests and crumb test.
Soils are subjected to certain standard tests to obtain their index properties and mineralogical characteristics, for their identification.
The results show that seven of the eight soils tested here can be classified as non-dispersive, and one is in transition zone. Dispersion piping behavior studied in soils is compared with their other soil properties in order to search for certain correlations. Such comparisons have shown that soils with swelling type clay minerals are less susceptible to dispersion piping. There is not any other significant relationship between the index properties and dispersibility for the soils studied here.
Pinhole test and chemical tests can be considered more effective in determining dispersibility according to the results obtained here, therefore, it is suggested to perform at least those two tests in studying dispersion piping phenomenon in soils.