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1 概述 平面钢闸门是水工建筑物中最常采用的一种闸门,通常每孔设计一扇;在洪水位较高而常水位又较低组合时亦设计成上、下扉门,正常情况用下扉门启闭,上扉门仅汛期高水位时运用。 上世纪60、70年代,由于当时片面追求降低造价,在一些水工建筑物的平面钢闸门设计中,遇到挡水水位较高且门较高时,为减小端柱断面及门槽尺寸,就在门侧端柱上布置多个(3个以上)滚轮直接支承闸门。由于施工中不可能保证门槽轨道绝对垂直
1 Overview Plane steel gate is the most commonly used in the hydraulic structure of a gate, usually designed for each hole; in the flood level is higher and often lower water level when the combination is also designed into the upper and lower door, the normal situation With the opening and closing of the door under the door, the door on the flood season only high water level use. 60s and 70s of last century, due to the one-sided pursuit of reducing the cost in some steel structures in the design of flat steel gate, encountered a higher water level and the door is higher, in order to reduce the cross-section of the terminal and the door slot size , A plurality of (3 or more) rollers are directly arranged on the door side end column to support the gate directly. Due to the construction can not guarantee the door slot track is absolutely vertical