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Full-Text Articles in Civil and Environmental Engineering
Rock Mass Evaluation Of The Sardar Sarovar (Narmada) Dam And Underground Powerhouse, India, Indra Prakash, Nikhil Desai
Rock Mass Evaluation Of The Sardar Sarovar (Narmada) Dam And Underground Powerhouse, India, Indra Prakash, Nikhil Desai
International Conference on Case Histories in Geotechnical Engineering
Geotechnical evaluation of the 163 m high concrete gravity Sardar Sarovar (Narmada) dam, under construction, and 1200 MW underground powerhouse (210m x 23m x 57.5m) and its ancillary structures has been done. The dam and powerhouse sites are occupied by basalt flows underlain by infra-trappean sedimentary rocks (Bagh beds) intruded by basic dykes. The area is structurally complex and seismically active. Intra-formational shears and sub-horizontal to low dipping weak layers like red bole, tuff, argillaceous sandstone having low values of shear parameters posed the problem of sliding stability of dam blocks. Concrete shear keys were provided as one of the …