Browsing NTNU Open by Author "Panthi, Krishna Kanta"
Now showing items 1-20 of 103
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3D in-Situ Stress Model of Upper Tamakoshi Hydroelectric Project Area
Basnet, Chhatra Bahadur; Panthi, Krishna Kanta (Journal article; Peer reviewed, 2017)Reliable estimation of in-situ stress state is very important in implementing the shotcrete lined/unlined tunnels and shafts. The in-situ stress state of the area of concern is mainly governed by the gravityinduced stress, ... -
A dynamic analysis of in-situ stress state at the Upper Tamakoshi Hydroelectric Project area
Panthi, Krishna Kanta; Basnet, Chhatra Bahadur (Journal article; Peer reviewed, 2018)The in-situ stress condition in the rock mass is influenced by both tectonic and geological environment such as faulting and shearing in the rock mass. This influence is of considerable magnitude in the Himalayan region ... -
A dynamic stress state analysis at the pressure tunnel of Upper Tamakoshi HPP, Nepal
Panthi, Krishna Kanta; Basnet, Chhatra Bahadur (Chapter, 2018)In theory, in-situ stress state of an area of concern is mainly governed by gravity-induced stress, tectonic ac-tivity and topographic condition of that area. The tectonic and geological environment such as faulting and ... -
An Approach to Limit Fully ConcreteLined Length of Pressure Tunnel for the Hydropower Projects to be built in the Himalaya
Panthi, Krishna Kanta (Chapter, 2014)The use of underground space such as waterway tunnels, shafts, underground caverns are inevitable in the development of hydropower projects in the Himalaya. Finding innovative solutions in underground construction is ... -
Analysis of Engineering Geological Uncertainties Related to Tunnelling in Himalayan Rock Mass Conditions
Panthi, Krishna Kanta (Doktoravhandlinger ved NTNU, 1503-8181; 2006:41, Doctoral thesis, 2006)The need for tunnelling in Nepal, as in the Himalayan region in general, is enormous, particularly for hydropower development. Due to active tectonic movement and dynamic monsoon, the rock mass in the Himalaya is relatively ... -
Analysis of Squeezing Phenomenon in the Headrace Tunnel of Chameliya Project, nepal
Basnet, Chhatra Bahadur; Shrestha, Pawan Kumar; Panthi, Krishna Kanta (Journal article; Peer reviewed, 2013)The headrace tunnel of Chameliya Hydroelectric Project, Nepal has faced severe squeezing problems from chainage 3+100m to 3+900m. Due to the severe squeezing and deformation, the tunnel cross section has narrowed considerably ... -
Analysis of the Deformation Behavior at the Underground Caverns of Neelum Jhelum HPP, Pakistan
Vestad, Magni Larsen (Master thesis, 2014)Many risks and challenges are associated with large scale underground projects. Stability issues are typically related to high stresses around the opening. Excavations will change the existent stress regime in the ground, ... -
Analysis of the plastic deformation behavior of schist and schistose mica gneiss at Khimti headrace tunnel, Nepal
Shrestha, Pawan Kumar; Panthi, Krishna Kanta (Journal article; Peer reviewed, 2014)The Khimti headrace tunnel experienced instability related to tunnel deformations in several tunnel stretches through mica schist and schistose mica gneiss rock mass. The monitored convergence pattern indicated that the ... -
Analysis of unlined pressure shafts and tunnels of selected Norwegian hydropower projects
Basnet, Chhatra Bahadur; Panthi, Krishna Kanta (Journal article; Peer reviewed, 2018)Norwegian hydropower industry has more than 100 years of experiences in constructing more than 4000 km-long unlined pressure shafts and tunnels with maximum static head of 1047 m (equivalent to almost 10.5 MPa) reached at ... -
Analysis on the extent of water inflow in the tunnel system of SmiSto Hydropower Project in Nordland
Haugerud, Haakon Jørlo (Master thesis, 2020)SmiSto vannkraftprosjekt, som bygges ut ved Gjervalenfjorden i Nordland, er et nytt bidrag til vannkraftindustrien i Norge. Ved drivingen av tunnelsystemene har det vært betydelige problemer knyttet til innlekkasje av vann ... -
Analysis on the pre-injection grout consumption at Strindheim Road Tunnel Project, Trondheim, Norway
Panthi, Krishna Kanta (Chapter, 2014)The improvement of road quality by introducing a road tunnel is one of the principles used in both urban areas and other major highway system in Norway. In general, due to good quality rocks, the tun-nels constructed here ... -
Assessment of the effect of stress anisotropy on tunnel deformation in the Kaligandaki project in the Nepal Himalaya
Shrestha, Pawan Kumar; Panthi, Krishna Kanta (Journal article; Peer reviewed, 2015)Most of the analytical approaches that are available for assessing plastic deformation in tunnels that pass through weak, schistose, and foliated rock masses assume an isostatic stress state. However, in situ stresses are ... -
Assessment on stress induced instability in a tunnel project of the Himalaya
Panthi, Krishna Kanta (Chapter, 2011)In the Himalaya, the majority of long tunnels face severe tunnel instability problems. One of the major instability is related to rock stresses. The headrace tunnel of Parbati II hydroelectric project is one of the long ... -
Assessment on the Decisive Parameters for Open Pit Slopes – A contribution based on a mine in hard rock environment
Cárdenas, Mario Morales (Doctoral theses at NTNU;2018:35, Doctoral thesis, 2018)Rock slope stability has been one of the major operational and safety challenges in the open pit mines throughout the world. Steeper slope angles provide a higher revenue and less waste material. Gentle slope angles are ... -
Assessment on the hydrogeological condition of an open pit mine based on piezometric measurements
Morales, Mario Orlando Cardenas; Panthi, Krishna Kanta; Rostad, Ragnhild; Holmøy, Kristin Hilde; Botsialas, Konstantinos (Journal article; Peer reviewed, 2019)Understanding groundwater and flow pattern behavior in a given mine site is generally based on accepted theory related to flow through porous granular media. The existence of discontinuities within the rock mass alters the ... -
ASSESSMENT ON THE POTENTIAL USE OF SHOTCRETE LINED HIGH PRESSURE TUNNEL AT RASUWAGADHI HYDROELECTRIC PROJECT, NEPAL
K.C., Ramesh Kumar (Master thesis, 2016)In this thesis, Rasuwagahdi Hydroelectric Project located in central region of Nepal, has been taken as the case study. In this project, approximately 4.2 Km long headrace tunnel with 138m long vertical shaft has been ... -
Assessment on the swelling and disintegration potential of weak and weathered rocks in water tunnels of hydropower projects - a contribution based on use of laboratory testing methods
Selen, Lena (Doctoral theses at NTNU;2020:354, Doctoral thesis, 2020)Swelling of rocks is a time-dependent phenomenon and a result of multiple and interactive rock characteristics interplaying in a complex picture. Further, the swelling responses of the rock mass are conditioned on the ... -
Cyclic oedometer swelling tests on rocks from North-Central Luzon, Philippines
Selen, Lena; Vergara, Maximiliano R.; Panthi, Krishna Kanta (Chapter, 2020)Tunnels passing through swelling rocks are subjected to stability problems as moisture changes affect the material properties of the rocks. The drying out process during construction may cause local contraction stresses ... -
Design review of the headrace system for the Upper Tamakoshi project, Nepal
Panthi, Krishna Kanta; Basnet, Chhatra Bahadur (Journal article; Peer reviewed, 2017)One way to reduce the cost of construction of hydroelectric projects with underground waterway systems is to allow the rock mass to act as natural concrete and to adopt unlined/shotcrete-lined pressure tunnels to the extent ... -
Detailed engineering geological assessment of a shotcrete lined pressure tunnel in the Himalayan rock mass conditions: a case study from Nepal
Basnet, Chhatra Bahadur; Panthi, Krishna Kanta (Peer reviewed; Journal article, 2020)The complex topography, geology, and tectonicenvironment prevailingin the Himalaya are the mainchallengeswhile applying theunlinedorshotcretelinedpressuretunnelconcept for hydropowerprojects.Inaddition,rockmassesintheHim ...