| 摘要 |
PURPOSE:To suppress the reduction of effective stored water amount in a dam by a method in which when turbidity detected is more than a specified value, water is taken out of the water level of highest turbidity, and when the turbidity is less than the specified value, water is taken out of the water level of lowest turbidity. CONSTITUTION:The turbidity of each water level near the water intake portion is measured while moving a water quality sensor 9. In case where average intake turbidity in a water level coincides with a set value when a switcher 17 is on the manual setting side (b), an intake gate 2 is driven at the water level. Also, when the switcher 17 is on automatic setting side (a), data (turbidity and inflow amount) on the quality of incoming water are taken by an incoming water sensor 13. When the data exceed specified values, it is judged to be flood, the intake gate is driven, and water is taken from the water level of highest turbidity. Before turbid substances settle, water is discharged to maximum extent to prevent the reduction of effective storage amount. When the turbidity is less than a specified value, the gate 2 is driven to the water level of lowest turbidity, and water is taken from the water of lowest turbidity. |
