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[单选题]
某水库溢洪道设计流量60m3/s,溢流宽度16m,堰后接矩形断面泄槽,泄槽底板采用混凝土衬砌,糙率系数n=0.017。泄槽的纵坡为( )。
A.0.005
B.0.003
C.0.002
D.0.004
查看答案
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A.0.005
B.0.003
C.0.002
D.0.004
A.3m
B.3.36m
C.2.8m
D.4.44m
A.1.23m
B.1.11m
C.1.25m
D.1.15m
A.7.2°
B.4.5°
C.5.6°
D.6.5°
A.47
B.45
C.46
D.44
A.y=0.4x+0.006x2
B.y=0.01x+0.006x2
C.y=0.4x+0.029x2
D.y=0.01x+0.029x2
A.17
B.16
C.15
D.14
A.Ld=49.35m、td=5.02m
B.Ld=51.47m、td=5.36m
C.Ld=49.35m、td=5.36m
D.Ld=51.47m、td=5.72m
A.3.78、4.23
B.5.03、5.87
C.4.95、5.72
D.4.16、5.60