Stability investigations along the Ordu peripheral highway (KM: 21+000-KM: 40+114)

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2003

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Sopacı, Evrim

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The Eastern Black Sea region of Turkey accomodates indecent residence conditions for people owing to ground conditions comprising of volcanics and concurrent flysch, and its related irregular geomorphology. One of the important difficulties in this region is transportation. Accordingly, the ordu peripheral highway which encompasses various structures such as, open cuts, bridges, viaducts and junctions and double tubed tunnel sections which will be driven in these geological and geomorphological conditions is palnned to be constructed. In regional scale, volcanics, pyroclastics and flysch deposits often intertounge with each other even over very short distances. The accurate determination of the shear strength parameters of these lithologies is vital for the assessment of portal slope stability and support design in regards to tunnel design. Rock mass classification systems, namley, RMR, NGI Q system and GSI, have been employed to obtain the rock mass shear strength parameters. Stress analyses around the tunnel opennings have been executed through employing 2D finite element analysis in an attempt to design tunnel support. The results of the analysis have been correlated with the results obtained from the emprical methods. The overall analyses and interpretations led to the determination of the support systems to be employed during tunnel construction.

Subject Keywords

Highway engineering, Civil engineering, Soil mechanics, Rock mechanics

URI

http://etd.lib.metu.edu.tr/upload/1054857/index.pdf
https://hdl.handle.net/11511/13758

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Graduate School of Natural and Applied Sciences, Thesis

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Citation Formats

E. Sopacı, “Stability investigations along the Ordu peripheral highway (KM: 21+000-KM: 40+114),” M.S. - Master of Science, Middle East Technical University, 2003.