Robbins TBM designed to reduce diameter

26/02/2009

Robbins TBM designed to reduce diameterThe Robbins main beam TBM employed at Akkoy II hydro project in northeast Turkey will bore a 6.7 km-long headrace at 4.8 m-diameter before downsizing to 4.0 m-diameter for another two tunnels totalling 8.8 km. Read the full report. 08/09.

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