FIELD: construction.
SUBSTANCE: invention relates to construction and operation of hydraulic structures, in particular to methods of preventive protection of hydraulic structures, namely low-pressure bulk ground dams. Method of preventive protection of low-head bulk filled ground dam is carried out by means of pre-winter lowering of water level in water reservoir to increase area of contact of body of dam with ambient air temperature minus 40–50 °C, which causes enhanced deep freezing of the body and base of the dam, while reducing the area of thermal effect of the reservoir.
EFFECT: invention makes it possible to increase efficiency of preventive protection of low-pressure bulk ground dam.
1 cl, 1 dwg
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