Terratec delivers TBM for Istanbul Metro

摘要

Terratec has announced a new Tunnel Boring Machine delivery for Istanbul Metro in Turkey at the end of August after the successful performance of the workshop testing. The official ceremony was held on Terratec's facilities in the presence of representatives from the client, a joint venture amongst the parties of Guelermak, Kolin and Kalyon (GKKJV). The JV targets to build a rapid transit line on top of the existing Istanbul Metro system between Mecidiyekoy and Mahmutbey in the east and west respectively of the European side of the Eurasian megalopolis. The new line will be 17.5 km in length and consist of 15 stations. It is expected to be in service by 2017. The customized Tunnel Boring Machine is an EPB Shield TBM with 6.56 m diameter. The TBM has a versatile cutterhead designed to excavate Istanbul's mixed geology which includes rock formations and includes state-of-the-art features such as the VFD (Variable Frequency Drive) electric driven cutterhead, a versatile design of the cutting tools that are interchangeable with 17" roller disc cutters or the active type articulation for the shield. The TBM will be transported to Turkey and commence boring at site before end of the year.