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Tunnelling through Tanzania
01 December, 2002
The Lower Kihansi Hydropower Project in Tanzania was the first project in the world to adopt a water head as high as 850m in an unlined pressure tunnel. A Halvorsen, senior geologist and J Lindemark, project manager for NORPLAN and F X Saidi, director of projects for TANESCO describe the project and, in particular, the hydrological behaviour of the rock mass along the pressurised tunnel
