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Structural design of drainage tunnels for 126-m high earth-and-boulder-fill dam under construction on River Ramganga to adequately provide relieving seepage downstream of clay core and grout curtain to reduce uplift pressures on foundations in abutments; dam results on alternate bands of poor sand rocks and clay shales; strike of rocks varies between 110 to 130° and dip varies from 35 to 45° toward upstream; two tunnels of 9.45 m ID have been constructed in right abutment; when need for diversion is over, eastern tunnel will be converted into power tunnel and western tunnel into outlet tunnel.
Structural design of drainage tunnels for 126-m high earth-and-boulder-fill dam under construction on River Ramganga to adequately provide relieving seepage downstream of clay core and grout curtain to reduce uplift pressures on foundations in abutments; dam results on alternate bands of poor sand rocks and clay shales; strike of rocks varies between 110 to 130° and dip varies from 35 to 45° toward upstream; two tunnels of 9.45 m ID have been constructed in right abutment; when need for diversion is over, eastern tunnel will be converted into power tunnel and western tunnel into outlet tunnel.
Drainage tunnels of Ramganga dam
Indian Concrete J
Gupta, O.P. (author)
1968
7 pages
Article (Journal)
English
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