foundation unwatering

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Sough — A Sough is an underground channel for draining water out of a mine. Its ability to drain a mine depends on the bottom of the mine being higher than a neighbouring valley. If the mine sump is lower, water must be pumped up to the sough. Derbyshire … Wikipedia
Dewatering — (pronounced de water ing) is the removal of water from solid material or soil by wet classification, centrifugation, filtration, or similar solid liquid separation processes, such as removal of residual liquid from a filter cake by a filter press … Wikipedia
MULVANY T J — IRELAND (see also List of Individuals) .. 1821 Dublin/IE 25.7.1892 Kati Kati/NZ The advance of the rational formula in hydrology is greatly associated to Irish civil engineering of the 1840s. The method, in brief, is to design drainage channels… … Hydraulicians in Europe 1800-2000

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