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铜街子水电站按林业部门提出的要求,漂木的年过坝量为130万立方米。为使木材在水库内扎排筏运过坝,在枢纽右侧设有一座总落差为41米的两级闸室的筏闸。闸室净宽为14米,闸室净长为105米,可同时驶入三张木排。筏闸的输水系统在三个闸首两侧各设有一对放水阀门。参考我国已建的船闸并结合铜街子筏闸的布置形式,输水系统的放水闸门采用了简单、安全可靠的平板滑动闸门。
According to the request of the forestry department at Tongjiezi Hydropower Station, the annual volume of dammed floats reached 1.3 million cubic meters. To allow the timber to be rafted across the dam in the reservoir, a raft gate with a two-stage lock chamber with a total drop of 41 meters is provided on the right side of the hub. Gate net width of 14 meters, the net gate length of 105 meters, can simultaneously enter the three rows of rafts. Raft gates of the water system in the three brake head on both sides of each with a pair of water valve. With reference to the ship lock built in our country and the layout of the copper street sub-rake gate, the water discharge gate of the water delivery system adopts a simple, safe and reliable flat sliding gate.