| 摘要 |
PURPOSE: A movable beam for a weir is provided to lower construction cost by minifying the capacity of a hydraulic pump for supplying hydraulic pressure to a hydraulic jack. CONSTITUTION: A movable beam for a weir comprises a panel fixing part (10), a panel (20), an equipment installation part (30), and a panel holding part. The panel is rotatably fixed using a hinge (14). The lower part of the panel is formed with a reinforcing bead (24). The panel holding part is equipped with a hydraulic jack (42) fixed on the bottom surface of an accepting groove (32) in order to allow a beam fixing end (44) at the end of a rod (43) to access through a fixing end accessing hole (35). The upright state of the panel is maintained by hanging the reinforcing bead on a bead fixing end using the pressure of fresh water with respect to the panel when the bead fixing end moves up. The panel is opened when the bead fixing end descends. |
