Blar i NTNU Open på forfatter "Katuwal, Tek Bahadur"
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Challenges associated with the construction of vertical and inclined shafts in the Himalayan Region
Katuwal, Tek Bahadur; Panthi, Krishna Kanta; Basnet, Chhatra Bahadur (Chapter, 2023)In the Nepal Himalayas, hydropower projects having an installed capacity of over 10MW usually consist of underground waterways. Most of these underground waterways consist of vertical or inclined pressure shafts, which are ... -
Leakage prediction and post-grouting assessment in headrace tunnel of a hydropower project
Katuwal, Tek Bahadur; Panthi, Krishna Kanta; Basnet, Chhatra Bahadur; Adhikari, Sailesh (Chapter, 2024)In the Himalayan region, tunnels are often constructed through complex and varying geological formations having rock mass with higher degree of jointing, faulting, folding, and weakness/shear zones. Such rock mass condition ... -
Machine Learning Approach for Rock Mass Classification with Imbalanced Database of TBM Tunnelling in Himalayan Geology
Katuwal, Tek Bahadur; Panthi, Krishna Kanta; Basnet, Chhatra Bahadur (Journal article; Peer reviewed, 2024)The geological condition of the Himalayan region is very complex and challenging. So far, empirical and analytical approaches for rock mass characterization have been a common practice in the Himalayas. Due to the limitations ... -
Planning and support estimation of underground powerhouse in the Himalayas
Adhikari, Sailesh; Panthi, Krishna Kanta; Basnet, Chhatra Bahadur; Katuwal, Tek Bahadur (Chapter, 2024)Underground structures like tunnels and caverns have major advantages in hydropower projects. Tunnels are used for transporting the water from the intake to the tailrace outlet through the turbines whereas caverns primarily ... -
Stability Challenges and Remedial Practices in Himalayan Hydropower Tunnels – A Review
Katuwal, Tek Bahadur; Panthi, Krishna Kanta (Journal article; Peer reviewed, 2024)The instability in tunnels is mainly affected by geological anomalies, rock mass quality, complex geological structures, active tectonics, and stress anisotropy. This review article presents challenges associated with ...