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Environmental geological and geotechnical investigations related to the potential use of Ankara clay as a compacted landfill liner material, Turkey

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Environmental Geology

Abstract

Clay-bearing Upper Pliocene red clastics and Quaternary alluvial deposits occupy the Ankara basin. The clayey levels of the Upper Pliocene deposits, referred to as Ankara clay, is considered as a source for compacted clay liners due to their low coefficients of permeability and widespread distributions throughout Ankara. This study investigates the geological, geotechnical and mineralogical properties of the founding clayey soils at two sites of the Ankara region. The geotechnical index properties along with the hydraulic conductivities of the clayey soil samples collected from these sites were determined. A mathematical relation between the clay mineralogical content and hydraulic conductivity was established. The results of this investigation show that, from a geotechnical point of view, Ankara clay may be regarded as a highly suitable material for a compacted clay landfill liner given that its mineralogical compatibility with leachate is confirmed.

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Acknowledgments

This work is supported by the Middle East Technical University (METU) Research Fund Project No. AFP-97–03–09–01. Thanks are due to Dr. A. P. Őnen, Mr. Ő. Aktürk and Mr. U. Demirtaş of the Middle East Technical University, Department of Geological Engineering, Ankara, Turkey for their kind assistance in re-drafting the illustrations in this manuscript.

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Authors and Affiliations

  1. Ziraat Bankası Genel Müdürlüğü, Tandoğan, Ankara, Turkey

    İ. Met

  2. Faculty of Engineering, Department of Geological Engineering, Middle East Technical University, 06531, Ankara, Turkey

    H. Akgün & A. G. Türkmenoğlu

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  1. İ. Met
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  2. H. Akgün
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  3. A. G. Türkmenoğlu
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Correspondence to H. Akgün.

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Met, İ., Akgün, H. & Türkmenoğlu, A.G. Environmental geological and geotechnical investigations related to the potential use of Ankara clay as a compacted landfill liner material, Turkey. Env Geol 47, 225–236 (2005). https://doi.org/10.1007/s00254-004-1147-4

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