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[单选题]
某岸坡式溢洪道由进水渠、控制段、泄槽段、挑流鼻坎及出水渠五部分组成,溢流堰体采用WES型实用堰,下接矩形断面泄槽。溢流堰堰顶高程199.80m,堰体上游铅直,溢流堰共5孔,单孔净宽12m。工作闸门为弧形闸门,由液压启闭机起闭。在上游库水位206.00m时,闸门开启高度3.0m放流,相应泄量为( )m3/s。(不计入行近流速水头,流速系数0.60,闸墩侧收缩系数为0.90)
A.1684
B.2214
C.1893
D.1535
查看答案
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A.1684
B.2214
C.1893
D.1535
A.200
B.220
C.180
D.190
A.50
B.40
C.30
D.20
A.7.2°
B.4.5°
C.5.6°
D.6.5°
A.17
B.16
C.15
D.14
A.47
B.45
C.46
D.44
A.3.78、4.23
B.5.03、5.87
C.4.95、5.72
D.4.16、5.60
A.4
B.5
C.6
D.7
A.△h=1.699m
B.△h=1.274m
C.△h=1.019m
D.△h=1.133m
A.y=0.15x+0.01144x2
B.y=0.15x+0.01049x2
C.y=0.15x+0.00968x2
D.y=0.15x+0.00839x2
A.7800
B.8021
C.8250
D.8135
A.706
B.677
C.812
D.633