出版社：Niğde Üniversitesi Mühendislik Fakültesi Dekanlığı
摘要：In this study, tunnel 26 (Project Km:216+260-222+360) of the Ankara-Istanbul high-speed railway project was studied in detail. The tunnel 26 and its continuation (total length: 7096 m), which are excavating with a 13,77 meter-diameter tunnel boring machine (TBM), was evaluated in point of infrastructure safety measures. To ensure safety in the tunnels, parallel tunnel, approach and safety shaft tunnels, sub-rail safety tunnels were modelled. These models were evaluated on the basis of cost, manufacturing time and ease of application. By considering the complex local rock conditions, it was confirmed that the sub-rail safety tunnel is the best tunnel with regard to minimum cost and minimum manufacturing time. Because this model has not been performed before, the applicability was performed by using Phase 2 V. 8.0., and by considering the axial stresses that can be observed during the operation, the sub-rail equipments are applicable under the condition that they are more rigid. Keywords : High speed railway tunnel, sub-rail tunnel, tunnel safety modelling, numerical analysis
