Assessment of rock slope stability along the proposed Ankara–Pozant? autoroad in Turkey |
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| Authors: | K M Avc? H Akgün V Doyuran |
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| Institution: | (1) Department of Geological Research, General Directorate of Mineral Research and Exploration, 06520 Ankara, Turkey, TR;(2) Department of Geological Engineering, Middle East Technical University, 06531 Ankara, Turkey, TR |
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| Abstract: | The main objective of this study is the determination of the slope stability and excavatability category of discontinuous
rock exposed between 53+000 and 58+000 km of the proposed Ankara–Pozantı autoroad in Turkey to provide secure access. The
study area is mostly in the outcrops of highly jointed sandstone with minor layers of marl. This Maastrichtian–Eocene Group
also contains conglomerate and limestone bands of flysch character called the Pas˙ada* Group. Quaternary alluvial deposits
occur throughout the site. The area was divided into four design sectors based on cut slope locations. Rock slope stability
was assessed kinematically as well as through utilizing limit equilibrium analyses. The excavation category was determined
to range from hard to extremely hard ripping. Remedial measures for unstable rock slopes are discussed.
Received: 22 July 1997 · Accepted: 14 April 1998 |
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| Keywords: | Rock slope stability Excavatability Kinematical analysis Limit equilibrium analysis |
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