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A platform for research: civil engineering, architecture and urbanism
Seepage control measures at dams with pervious foundations
Lossen Dam is long-term storage dam founded on deep erratically stratified soil with average permeability of about 10-3 m/sec; some measures against detrimental effects of underseepage are created by means of impervious blanket lengthening seepage path, together with pressure relief arrangements downstream of dam; extensive network for observations of groundwater pressures and seepage quantities was arranged; at Hammarforsen Dam, groundwater erosion in one of dam abutments was experienced 30 yr after construction of dam and 15 yr after upstream water level was raised by some 2 m; to counteract erosion, system of filter wells was installed, including central pumping station.
Seepage control measures at dams with pervious foundations
Lossen Dam is long-term storage dam founded on deep erratically stratified soil with average permeability of about 10-3 m/sec; some measures against detrimental effects of underseepage are created by means of impervious blanket lengthening seepage path, together with pressure relief arrangements downstream of dam; extensive network for observations of groundwater pressures and seepage quantities was arranged; at Hammarforsen Dam, groundwater erosion in one of dam abutments was experienced 30 yr after construction of dam and 15 yr after upstream water level was raised by some 2 m; to counteract erosion, system of filter wells was installed, including central pumping station.
Seepage control measures at dams with pervious foundations
Int Congress on Large Dams
Emmelin, L.O. (author) / Welinder, H.O. (author)
9th International Congress on Large Dams ; 1967 ; Turkey , Istanbul
1967
11 pages
Conference paper
English
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