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Determination of tunnel support systems of Belkahve (İzmir) tunnel with empirical and numerical methods
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Date
2016
Author
Domaniç, Can Murat
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In this study, determining the geological and geotechnical characteristics of the Belkhave tunnel with a length of 1650 m and width of 16 m along Manisa-İzmir Highway, selecting the appropriate support system and verifying with numerical modeling are aimed. Limestone and schist are the main lithologies along the Belkahve tunnel. RMR, Q and NATM classification systems are used to classify the rock mass. Appropriate support systems are determined by using these classification methods. In order to verify the determined support systems, 2D finite element analyses are performed to check the stabilities of seven sections through the tunnel route. The primary support systems determined according to RMR, Q and NATM and 4-6 m long bolt with intervals of 1-1.5 m, 10-30 cm shotcrete, steel sets wherever required are recommended. Moreover, numerical analyses are used to check the deformation at different sections of the tunnel and stabilities of the tunnel portals. Based on the analyses performed, tunnel deformations are found to be acceptable with the applied supports, and no slope failure is expected for the portals.
Subject Keywords
Tunnels.
,
Tunneling.
,
Limestone.
,
Geology, Structural.
,
Underground construction.
URI
http://etd.lib.metu.edu.tr/upload/12620143/index.pdf
https://hdl.handle.net/11511/25750
Collections
Graduate School of Natural and Applied Sciences, Thesis
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C. M. Domaniç, “Determination of tunnel support systems of Belkahve (İzmir) tunnel with empirical and numerical methods,” M.S. - Master of Science, Middle East Technical University, 2016.
