Landfill site selection and landfill liner design for Ankara

Yal, Gözde Pınar
The main scope of this thesis is to select alternative landfill sites for Ankara based on the growing trends of Ankara towards the Sincan and Gölbaşı municipalities and to eventually select the best alternative. Landfill site selection was carried out utilizing Geographic Information System (GIS) and Multi-Criteria-Decision-Analysis (MCDA). A number of criteria were gathered in a GIS environment. Each criterion was assigned a weight value by applying the Pairwise Comparison Method (PCM). “The Technique for Order Preference by Similarity to the Ideal Solution (TOPSIS)”, was applied and the best landfill site alternative was determined. The geotechnical properties of the clay samples, obtained from selected locations in Gölbaşı and Sincan were determined in order to design a landfill liner system using compacted “Ankara Clay” as the liner material. The permeability values for the clay samples were determined by performing falling head tests and consolidation tests. The coefficient of permeability value of the compacted clay was determined to be in the order of 10-10 m/s for the Gölbaşı samples and 10-11 m/s for the Sincan samples for both of the tests performed. These tests indicated that the native clay was suitable to be utilized as a landfill liner material. The HELP and POLLUTE was employed for the purpose of landfill design and predicting the landfill hydrological processes. The landfill profile with a double lining system composed of geomembrane/compacted clay composite top and bottom liners with a drainage layer was determined to show the best performance amongst the others.


Landfill site selection utilizing TOPSIS methodology and clay liner geotechnical characterization: a case study for Ankara, Turkey
Yal, Gozde Pinar; Akgün, Haluk (Springer Science and Business Media LLC, 2014-05-01)
The purpose of this study was to select alternative landfill sites for Ankara based on the growing trends of Ankara toward the GolbaAYA +/- municipality, and to eventually select the best alternative through the use of decision-making tools. Geographic information systems (GIS) and multi-criteria decision analyses were employed to perform landfill site selection. Several criteria, including geology, slope, proximity to roads, availability and proximity of landfill containment material, settlement, suitabili...
Modeling and development of a groundwater management plan for Ulubey aquifer system, Uşak-Turkey
Ünsal Erdemli, Burcu; Yazıcıgil, Hasan; Department of Geological Engineering (2008)
The purpose of this study is the characterization and modeling of Ulubey aquifer system which serves as an important water supply for Uşak province located in inner parts of the Aegean Region in Turkey. In recent years, growing population, accelarating industrial activities and on the contrary decreasing rainfall and contamination of the surface water resources made groundwater indispensable to meet domestic, agricultural and industrial water demands of Uşak province. All these facts necessitate the develop...
Determination of the rock mass characteristics and support systems of the new Ulus Tunnel, Ankara
Aksular, Irem; Doyuran, Vedat; Department of Geological Engineering (2008)
The New Ulus Tunnel will be constructed within the andesitic terrain at Hıdırlıktepe (Ankara). Excavation of the tunnel will be accomplished through blast and drill method. Emprical methods will be consulted during the design of the support systems as well as the slope of the portal rock face. Therefore it is essential to perform detailed rock mass characterization studies. In this thesis it is aimed to determine the rock mass characteristics in order to design the rock slope of the portals and to assess th...
Mineralogical and geochemical properties of messinian gypsum occurence in Polatlı Sazılar region, Ankara
Çakmak, Hayriye; Köksal, Fatma; Department of Geological Engineering (2008)
The objective of this study is to understand the petrographical, mineralogical and geochemical characteristics of Messinian (Upper Miocene) gypsum occurence in Polatlı Sazılar region, Ankara and to determine the impurities associated with gypsum. Moreover, it is aimed to interpret the usability of this raw material with impurities in plaster and plasterboard production based on industrial standards. Based on petrographical study, the first variety of gypsum which have different physical properties is white ...
Developing a geotechnical microzonation model for Yenişehir (Bursa) settlement area
Kolat, Çağıl; Süzen, Mehmet Lütfi; Department of Geological Engineering (2010)
The purpose of this study is to develop a geotechnical microzonation model regarding the suitability of the residential areas in Yenişehir (Bursa, Turkey), which is a currently developing settlement area in a seismically active region. For this purpose, soil properties and dynamic soil behaviors of the study area were assessed. Soil classification, soil amplification, natural soil predominant period, resonance phenomena and liquefaction potential of the study area were evaluated using borehole data and micr...
Citation Formats
G. P. Yal, “Landfill site selection and landfill liner design for Ankara,” M.S. - Master of Science, Middle East Technical University, 2010.