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Background
Based on long experience in construction and operation of unlined pressure tunnels and
shafts, certain design principles have been developed and practiced in Norway. Now, the
research question of this PhD study is;
“Is it possible to adopt Norwegian design principles for unlined pressure tunnels and shafts in
the Himalaya? What improvements are needed?”
Objectives
• Review of Norwegian design principles for high pressure unlined tunnels and shafts
• Use of the design principles in project cases from Himalaya and verification using
FLAC3D analysis
• Publish the research results in journals and conferences, summarize in a PhD thesis
Cases
Upper Tamakoshi Hydroelectric Project (UTKHP), Khimti 1 Hydropower Project & Khani Khola
Hydropower Project, Nepal.
PhD Thesis
Department of Geology
and Mineral Resources
Engineering
Applicability of Unlined/
Shotcrete Lined High
Pressure Tunnels for
Hydropower Projects in the
Himalaya
By Chhatra Bahadur Basnet
Supervisor
Associate Prof. Krishna K. Panthi