Reply to discussion by H. Sonmez on "Effect of weathering on the geomechanical properties of andesite, ankara, turkey" by M. Orhan, N.S. Isik, T. Topal, M. Ozer, environmental geology, 50 (1): 85-100 (2006)

ORHAN, Metin
IŞIK, Nihat Sinan
Topal, Tamer


Evaluation of rock excavatability and slope stability along a segment of motorway, Pozanti, Turkey
KENTLİ, BERKAY; Topal, Tamer (Springer Science and Business Media LLC, 2004-07-01)
The Ciftehan-Pozanti segment of the Ankara-Pozanti motorway is problematic due to the existence of lithological units with variable character. Seven cut slopes are planned along Km 358+000- Km 364+350 of the proposed motorway. The purpose of this study is to determine engineering geological properties of the rocks exposed along the motorway and to assess the excavatability and stability of the cut slopes. Both field and laboratory studies were carried out during this study. Field studies involved geological...
Development of a geotechnical and geophysical database for seismic zonation of the Ankara Basin, Turkey
Koçkar, Mustafa K.; Akgün, Haluk (Springer Science and Business Media LLC, 2008-07-01)
Engineering geological and geotechnical site characteristics were assessed and seismic hazard studies performed for the Upper Pliocene to Pleistocene fluvial and Quaternary alluvial and terrace deposits for a site west of Ankara, Turkey. Sediment conditions were determined and a soil profile was characterized by surface geophysical methods. These studies were integrated with existing in-situ characterization studies to create a seismic and geotechnical database for the site. A seismic zonation map of the si...
Evaluation of a compacted bentonite/sand seal for underground waste repository isolation
Akgün, Haluk; AKTÜRK, ÖZGÜR (Springer Science and Business Media LLC, 2006-06-01)
This study investigates the performance of an optimum compacted bentonite/sand mixture seal for the isolation of underground waste repositories. Engineering geological tests such as compaction, flow, swelling, mechanical and shear strength tests have been conducted to select an optimum mixture and to recommend a stable bentonite/sand seal length-to-radius ratio (L/a) as far as the factor of safety (F) is concerned. The results of the compaction permeameter tests led to a recommendation to select an optimum ...
A model for the conservation of geological remains as documents
Sol, Ayhan (Springer Science and Business Media LLC, 1999-01-01)
Geological remains are conserved mainly either together with living beings for the sake of the integrity of nature or for their economical or aesthetic value. However, they also have scientific value for the geologist to reconstruct the earth's past. For this reason we propose a model which is an application of marginal utility theory in economics and takes into account the informational utility of geological remains. Informational utility of geological remains ranges over their geological significance whic...
Composite landfill liner design with Ankara clay, Turkey
Met, İlker; Akgün, Haluk (Springer Science and Business Media LLC, 2005-04-01)
This study presents an overview of the geotechnical properties of the clayey soils, referred to as "Ankara clay", at two sites of the Ankara region in an attempt to design a landfill profile composed of a high density polyethylene (HDPE) geomembrane/clay composite liner through the Hydrologic Evaluation of Landfill Performance (HELP) model and the Water Balance Method. The geotechnical properties of the landfill layers along with the water balance factors (i.e., evapotranspiration, precipitation, temperatur...
Citation Formats
M. ORHAN, N. S. IŞIK, T. Topal, and M. ÖZER, “Reply to discussion by H. Sonmez on “Effect of weathering on the geomechanical properties of andesite, ankara, turkey” by M. Orhan, N.S. Isik, T. Topal, M. Ozer, environmental geology, 50 (1): 85-100 (2006),” ENVIRONMENTAL GEOLOGY, pp. 917–919, 2008, Accessed: 00, 2020. [Online]. Available: