Journal - Geological and geotechnical investigations of Tapovan–Vishnugad Hydroelectric Project, Chamoli District, Uttarakhand, India

Geological and geotechnical investigations of Tapovan–Vishnugad Hydroelectric Project, Chamoli District, Uttarakhand, India

Ajay K. Naithani

Department of Geology, H. N. B. Garhwal University,

Srinagar (Garhwal) 246 174, India

K. S. Krishna Murthy

928, 22nd Main Road, IV’T’ Block, Jayanagar, Bangalore, India

Jour. Nep. Geol. Soc., Vol. 34, 2007, 1-16


Abstract

The Tapovan–Vishnugad Hydroelectric Project is located in the Dhauliganga and Alaknanda valleys, where the Central Crystallines are composed mainly of medium- to high-grade metamorphics represented by augen gneisses, metabasics, finegrained quartz-mica gneisses, micaschists, quartzites, and coarse-grained garnet-biotite-kyanite gneisses. Towards the south, they are thrust over the Lesser Himalayan rocks of the Garhwal Group along the Main Central Thrust. The study aims at modelling the effects of geological structures for determining the potentially fractured or weak zones in underground excavations. For this purpose, Q and RMR values are obtained for each rock type. The in situ deformation modulus, cohesion, and friction angle are estimated to design support systems in unstable zones.

Member Login
NEWS AND EVENTS
  • Feb
    06

    Nepal Geological Society organized a one day workshop on Earthquake Safety Day-2074 in 2074/10/13 at the conference hall of the United World Trade Center, Tripureshwor, Kathmandu, Nepal in association with Private and Boarding School Association Nepal (BAPSON Kathmandu Province).

  • Oct
    16

    Nepal Geological Society (NGS) has observed the International Day for Disaster Reduction (IDDR) on October 13, 2017 (Friday, 27 Ashwin 2074).

Activities and Information

Activities of 17th and 18th Executive Committee
Nepal Geological Society
P.O.Box No. 231
Kathmandu, Nepal
FREEPHONE: +977-01-4437874
Email: info@ngs.org.np