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Preliminary support design for Ankara subway extension tunnel
Date
2001-01-01
Author
OZSAN, A
Karpuz, Celal
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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This paper presents the results of preliminary support design of the subway tunnel for Ankara subway project in accordance with some empirical and numerical methods, using the phase 2D finite element method (FEM). The 5 m diameter subway tunnel will advance through slightly to moderately weathered dacite and weak zones. Rock masses were characterized in terms of rock mass rating (RMR), geological strength index (GSI) and Q System. Core samples were tested in the rock mechanics laboratory to determine uniaxial compressive strength, deformability parameters, unit weight, tensile strength and triaxial compressive strength properties. Finally, rock mass strengths were determined by empirical and numerical methods. Required support system was suggested.
Subject Keywords
Geotechnical Engineering and Engineering Geology
,
Geology
URI
https://hdl.handle.net/11511/34808
Journal
ENGINEERING GEOLOGY
DOI
https://doi.org/10.1016/s0013-7952(00)00072-7
Collections
Department of Mining Engineering, Article