Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Difficult ground conditions dictating selection of TBM type in Istanbul
This chapter shows the optimum selection of TBM type in Istanbul, gradually changed from open type TBM (Baltalimani Tunnel), to double shield TBM (Moda‐Tuzla Tunnel), to slurry type TBM (Marmaray Tunnels) and finally to EPB‐TBMs over the past 25 years. This gradually progressive selection based on the complex geology of Istanbul is a typical example to the concept of ‘learning costs’.
Case study of an open TBM in Baltalimani Tunnel is briefly given explaining why it failed in Trakya Formation. The performance of a double shield TBM in the Istanbul–Moda collector tunnel and the performance of the same type of TBM working without precast segment in difficult ground in Tuzla tunnel in Istanbul are also covered. Difficulties in using slurry TBMs in complex geology in Marmaray Tunnel projects and difficulties in single‐shield TBM working in open mode in difficult ground in Kadikoy–Kartal metro tunnel are also outlined in this chapter.
Difficult ground conditions dictating selection of TBM type in Istanbul
This chapter shows the optimum selection of TBM type in Istanbul, gradually changed from open type TBM (Baltalimani Tunnel), to double shield TBM (Moda‐Tuzla Tunnel), to slurry type TBM (Marmaray Tunnels) and finally to EPB‐TBMs over the past 25 years. This gradually progressive selection based on the complex geology of Istanbul is a typical example to the concept of ‘learning costs’.
Case study of an open TBM in Baltalimani Tunnel is briefly given explaining why it failed in Trakya Formation. The performance of a double shield TBM in the Istanbul–Moda collector tunnel and the performance of the same type of TBM working without precast segment in difficult ground in Tuzla tunnel in Istanbul are also covered. Difficulties in using slurry TBMs in complex geology in Marmaray Tunnel projects and difficulties in single‐shield TBM working in open mode in difficult ground in Kadikoy–Kartal metro tunnel are also outlined in this chapter.
Difficult ground conditions dictating selection of TBM type in Istanbul
Bilgin, Nuh (Autor:in) / Copur, Hanifi (Autor:in) / Balci, Cemal (Autor:in)
28.10.2016
18 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
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