Blar i Fakultet for ingeniørvitenskap (IV) på tidsskrift "Hydro Nepal: Journal of Water, Energy and Environment"
Viser treff 1-16 av 16
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3D in-Situ Stress Model of Upper Tamakoshi Hydroelectric Project Area
(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
(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 ... -
Analysis of Squeezing Phenomenon in the Headrace Tunnel of Chameliya Project, nepal
(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 ... -
Effectiveness of Post-injection Grouting in Controlling Leakage: A Case Study
(Journal article; Peer reviewed, 2011) -
Engineering geological design of underground works for Upper Madi Hydroelectric Project
(Journal article; Peer reviewed, 2011) -
Environmental Flows in Nepal - An Evaluation of Current Practices and an Analysis of the Upper Trishuli-I Hydroelectric Project.
(Journal article; Peer reviewed, 2015)Environmental assessments and environmental flows are important components in modern hydropower development. Various methods employing a combination of hydrology, hydraulics, environmental assessment and ecology have been ... -
Evaluation of Powerhouse Cavern for the SachKhas Hydroelectric Project in Himachal, India
(Journal article; Peer reviewed, 2017)Evaluation of an underground powerhouse cavern’s stability is a challenging task and needs to be carried out carefully by taking care of its location, orientation and dimensioning. This article deals with the stability ... -
Evaluation of Seismic Events Occurred after Filling and Drawdown of the Reservoir at Song Tranh 2 HPP in Vietnam
(Journal article; Peer reviewed, 2014)Reservoir-induced earthquakes are a challenging issue for hydropower, and have occurred at many sites around the world. However, each event is unique in itself and depends on the geo-tectonics and geo-hydrology of the area ... -
Evaluation on the Potential Use of Shotcrete Lined High Pressure Tunnel at Upper Tamakoshi Hydroelectric Project
(Journal article; Peer reviewed, 2012)Optimization of rock support is a key for the successful use of underground space for hydropower development in the Himalaya. Therefore, finding innovative, optimum and economic solution will be the only way to guarantee ... -
Evaluation on the TBM Performance at a Hydropower Project in Ecuador
(Journal article; Peer reviewed, 2019)The aim of this manuscript is to discuss the Tunnel Boring Machine (TBM) performance along the recently constructed headrace tunnel of Minas-San Francisco Hydropower Project in Ecua-dor. Firstly, the manuscript briefly ... -
Methods Applied in the Prediction of Brittle Failure in Tunnels and Underground Caverns
(Journal article; Peer reviewed, 2018)Tunnels and underground caverns located at greater depth (high rock cover or overburden) are subjected to high in-situ stress environment. Those rock mass that are relatively unjointed and massive are exposed to the brittle ... -
Norwegian Design Principle for High Pressure Tunnels and Shafts: Its Applicability in the Himalaya
(Journal article; Peer reviewed, 2014)Cost effective, safe and long term sustainable hydropower development is a key for the lasting economic growth in the Himalayan region. Increasing pressure towards the use of renewal and environmentally friendly energy for ... -
Predicting Tunnel Squeezing: A Discussion based on Two Tunnel Projects
(Journal article; Peer reviewed, 2013)Tunnel squeezing is a phenomenon, which is frequently confronted while tunneling through Himalayan rock mass. Weak and schistose rocks like mudstone, shale, slate, phyllite, schist, highly schistose mica gneiss and the ... -
Review on the Major Failure Cases of Unlined Pressure Shafts/Tunnels of Norwegian Hydropower Projects
(Journal article; Peer reviewed, 2016)The Norwegian hydropower industry has more than 100 years of experience in constructing the unlined pressure shafts and tunnels. Most of the hydropower projects have long waterway systems consisting unlined high pressure ... -
The use of Self Supporting Capacity of Rock Mass for Sustainable Hydropower: An Analysis of the Middle Marsyangdi Headrace Tunnel, Nepal
(Journal article; Peer reviewed, 2010)The history of hydropower development in the Himalaya indicates that many tunnels have suffered from cost overruns and delays. These issues are directly dependent on the quality of rock mass and the permanent rock support ... -
Turnkey Contract - A Management Challenge under Himalayan Geological Condition
(Journal article; Peer reviewed, 2016)Himalayan geology poses special attention and tunnelling challenges, which are associated to the engineering geological conditions in the rock mass. Completing tunnelling project within scheduled contractual time is an ...