| 摘要 |
A self-regulating tilting weir comprises a tiltable weir gate over which the water flows, the weir gate being hinged at its lower edge (3) to the base of a support frame (1) and counterbalanced by float means (4) located upstream of the weir gate so that the level of water is raised in response to a fall in the water level upstream of the weir gate and is lowered in response to an increase in the water level upstream of the weir gate, the weir gate being connected to the float means (4) by chains or cables (5) which pass over pulley wheels (6), and means (7, 8) being provided for effecting vertical movement of the pulley wheels (6) relative to the support frame (1). A self-regulating fishway (Figures 9 to 11) is provided alongside the weir.
|
