Research Information System
Thesis Type: Postgraduate
Institution Of The Thesis: Orta Doğu Teknik Üniversitesi, Faculty of Engineering, Department of Geological Engineering, Turkey
Approval Date: 2016
Student: CAN MURAT DOMANİÇ
Supervisor: TAMER TOPAL
Abstract: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.