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Abstract: In this study, field observations on cutter wear and breakages in between 2 stations (Carsi and Umraniye) of Uskudar-Umraniye-Cekmekoy-Sancaktepe Metro Tunnel in Istanbul are mentioned in relation to TBM operational conditions (such as instantaneous penetration rate, thrust, torque, etc.) and geological conditions (such as RQD, strength, Cerchar abrasivity), within the context of the projects...
Abstract: Uskudar-Umraniye–Cekmekoy-Sancaktepe metro line of 20 km having two tubes is recently commissioned to Doğuş Construction Company by Istanbul Metropolitan Municipality authorities. The geology is complex consisting of sandstone, arcosic sandstone mudstone, siltstone, shale, limestone, andesite, and quartzitic conglomerate. The geologic units are frequently cut by...
Abstract: The tunnel excavations in Uskudar-Umraniye-Cekmekoy metro construction project conducted by the Istanbul Metropolitan Municipality Department of Rail Systems, Directorate of Rail Systems on Asian Side, are executed by using both NATM and TBM excavation methods. Platforms, scissor crossing tunnels, transportation tunnels, link tunnels and ladder tunnels that have various cross sections are...
Abstract: The tunnel excavations in Uskudar-Umraniye-Cekmekoy metro construction project conducted by the Istanbul Metropolitan Municipality Department of Rail Systems, Directorate of Rail Systems on Asian Side, are executed by using both NATM and TBM excavation methods. Platforms, scissor crossing tunnels, transportation tunnels, link tunnels and ladder tunnels that have various cross sections are...