A vertical well or borehole, usually downstream of impervious cores, grout curtains, or cutoffs, designed to collect and direct seepage through or under a dam to reduce uplift pressure under or within the dam. A line of such wells forms a drainage curtain. Also referred to as Relief Wells.
DRAINS (OF A DAM)
Meaning of DRAINS (OF A DAM) in English
Environmental engineering English vocabulary. Английский словарь экологического инжиниринга. 2012