（1） 安装工作桥是为了方便工作人员操作。工作桥的高度与闸门的尺寸和形

(1) The working bridge is installed for the convenience of staff. The height of the working bridge is related to the size and form of the gate. Since the gate is flat, a fixed hoist is used. After the gate is opened and closed, it will not affect the maximum discharge flow, and there is a certain additional part. According to work requirements and design specifications, the working bridge should be located directly above the working gate to support the working bridge. <br>(2) The height of the working bridge depends on the form of the gate and the water surface of the gate hole. When the fixed gate is used for the plane gate, the difference between the bottom edge elevation of the working bridge and the bottom edge elevation of the breast wall is 27m. <br>The working bridge adopts an assembled structure, and the bridge deck is placed on two longitudinal beams. The total width of the working bridge is 3600 mm. The height of the longitudinal beam of the working bridge is 800mm, the width of the longitudinal beam is 1/2 ~ 1/3 of the height, and the width is 300; It is 1 / h of the height, 250 mm, and the thickness <br>is 100 mm for the working bridge. The layout of the working bridge is shown in Figure 2-2.

(1) The work bridge is installed to facilitate the operation of the staff. The height of the work bridge is related to the size and form of the gate. Since the gate is flat, a fixed opening and closing machine is used. After the gate opens and closes, it does not affect the maximum discharge flow, and there is a certain additional part. According to the work needs and design specifications, the work bridge should be located directly above the work gate to support the work bridge.<br>(2) The height of the working bridge depends on the form of the gate and the water surface of the gate hole. When the flat gate is fixed opening and closing, the difference between the working bridge bottom edge elevation and the chest wall bottom edge elevation is 27m.<br>The working bridge is made of an assembly structure, and the bridge surface is placed on two girders. The total width of the working bridge is 3600 mm. The length of the bridge is 800 mm, the width of the girder is 1/2 to 1/3, the width is 300, the beam height of the working bridge is 2/3 to 3/4, the height is 600 mm, the width is 1/h, take 250 mm, the thickness is<br>The working bridge is 100 mm. The work bridge arrangement is shown in Figure 2-2.

(1) The working bridge is installed to facilitate the operation of the staff. The height of the working bridge is related to the size and form of the gate. Because the gate is flat, the fixed hoist is used. After the gate is opened and closed, the maximum discharge will not be affected, and there are some additional parts. According to the work requirements and design specifications, the working bridge shall be located directly above the working gate to support the working bridge.<br>(2) The height of the working bridge depends on the type of gate and the water surface of the gate hole. When the plane gate adopts the fixed hoist, the difference between the bottom edge elevation of the working bridge and the bottom edge elevation of the breast wall is 27m.<br>The working bridge adopts assembly structure, and the bridge deck is placed on two longitudinal beams. The total width of the working bridge is 3600 mm. The height of the longitudinal beam of the working bridge is 800mm, the width of the longitudinal beam is 1 / 2 ~ 1 / 3 of the height, and the width is 300; the height of the transverse beam of the working bridge is 2 / 3 ~ 3 / 4 of the longitudinal beam, the height is 600mm, the width is 1 / h of the height, and the thickness is 250mm<br>The working bridge is 100 mm. The layout of the working bridge is shown in Figure 2-2.<br>