FIELD: construction.
SUBSTANCE: drainage system of earth dam includes vertical or tilted drain and gutter joining it in the form of bedded drainage and driven to upper dam pool. Gutter is equipped with water receiver and is made at section from water receiver up to head water in the form of sealed pipe. Input pipe head is introduced into water receiver below level of outlet head embedded under dead-storage level of water head. Outlet pipe head is equipped with return valve. Shortcut from water receiver up to back of dam is not less than similar distance from permanent water level line at upstream side up to vertical or tilted drain.
EFFECT: improvement of earth dam reliability.
4 cl, 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| DIKE | 1997 |
|
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RU2763752C1 |
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SU1604909A2 |
