Browsing by Author "Özhan, Hakkı O."
Now showing items 1-12 of 12
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Design of a geomembrane-laminated geosynthetic clay liner on the slopes of a mine tailings dam in emet, Turkey
Özhan, Hakkı O.; Güler, Erol (Springer Heidelberg, 2018)We evaluated the potential use of a geomembrane-laminated geosynthetic clay liner (GCL) along the slopes of a boric acid tailings dam in Emet, Turkey. Even though a compacted clay liner (CCL) had been used at the bottom ... -
Effects of temperature increase in 0.5 M MgCl2 solution on hydraulic capability of anionic polymer-treated geosynthetic clay liners used as barriers
Özhan, Hakkı O. (Asce-Amer Soc Civil Engineers, 2018)Geosynthetic clay liner (GCL) is a lining material that consists of a bentonite layer sandwiched between two geotextiles. To simulate the interaction between an aqueous solution and a barrier material, triaxial permeability ... -
Factors affecting failure by internal erosion of geosynthetic clay liners used in freshwater reservoirs
Özhan, Hakkı O.; Güler, Erol (Geological Soc Amer, Inc, 2016)Geosynthetic clay liners (GCLs) are often used as lining materials for freshwater reservoirs. To irrigate agricultural land without depleting groundwater, surface water is stored in these artificial ponds. In this study, ... -
Geotextile deformation analysis of geosynthetic liners with fem
Özhan, Hakkı O. (Int Center Numerical Methods Engineering, 2015)This paper provides information on placing geosynthetic clay liner (GCL) as a lining material over coarse-grained soils in cover systems or irrigation ponds. The effects of the hydraulic head acting over the GCL and the ... -
Hydraulic capability of polymer-treated GCLs in saline solutions at elevated temperatures
Özhan, Hakkı O. (Elsevier, 2018)Geosynthetic clay liners (GCLs) can be used effectively as barriers in waste containment facilities. However, interaction of the GCL with a saline solution might cause a decrease in the hydraulic performance of the GCL. ... -
Hydraulic performance of anionic polymer-treated bentonite-granular soil mixtures
Güler, Erol; Özhan, Hakkı O.; Karaoğlu, Selçuk (Elsevier Science Bv, 2018)In this study, hydraulic conductivity and viscosity determination tests were performed on two different bentonite-granular soil mixtures having various amounts of bentonite in order to obtain the optimum mixture to be used ... -
Internal erosion and permeability of Na CMC-treated and PAM-treated geosynthetic clay liners
Özhan, Hakkı O.; Erkal, Aykut (2023)This paper investigates the occurrence of internal erosion and the variation of the permeability of geosynthetic clay liner (GCL) with respect to its geotextile component, polymer type and polymer amount added to its ... -
Katyonik Polimer Katkılı Geosentetik Kil Örtülerin Farklı Tuz Çözeltileri ile Etkileşimi
Özhan, Hakkı O. (2018)Geosentetik kil örtü (GKÖ), düşük hidrolik iletkenliği sayesinde atık depolama alanlarında bariyer özelliği ile kullanılan bir kaplama malzemesidir. Bu çalışmada, GKÖ’nün bentonit bileşenine sırasıyla kütlece %0.5, %1 ve ... -
Measuring shear strength parameters of polymer-added bentonite-sand mixtures in laboratory experiments
Özhan, Hakkı O. (EDP Sciences, 2019)In order to evaluate the shear strength parameters of an anionic polymer-added bentonite-sand mixture that was permeated with tap water, Proctor compaction tests and direct shear tests were performed on the mixture with a ... -
Problems and solutions for GCLs used in waste containment facilities: temperature concerns and polymer treatment related to GCLs used in waste containment areas
Özhan, Hakkı O. (Springer International Publishing Ag, 2017)In this study, first, various geosynthetic clay liner (GCL) application areas were briefly defined and afterwards, the details of GCL usage in mine applications were given. GCLs are barrier materials that are preferred in ... -
Use of perforated base pedestal to simulate the gravel subbase in evaluating the internal erosion of geosynthetic clay liners
Özhan, Hakkı O.; Güler, Erol (Amer Soc Testing Materials, 2013)When geosynthetic clay liners (GCLs) are placed over coarse-grained gravel subgrades, the permittivity of the GCLs may increase because of internal erosion. To simulate this condition, geosynthetic clay liners typically ... -
Value and vulnerability assessment of a historic tomb for conservation
Erkal, Aykut; Özhan, Hakkı O. (Hindawi Ltd, 2014)Monumental tombs reflect various social, cultural, architectural, religious, economic, and engineering features of a community. However, environmental weathering, natural disasters, poor maintenance, vandalism, and misuse ...