河床冲刷深度计算

,,,管道跨河段冲刷深度计算,,,,,,,,,,,,,,,,

,,,设计参数,冲刷处水深,平均流速,允许流速,形状系数,冲刷深度,,,跨河河段,大人坡跨河段,大河蹽河段,新寨跨河段,黑石头冲跨河段,,,,

,,,,hp,vcp,v允,n,△hB,,,土质,中卵石,小卵石,小卵石,小卵石,,,,

,,,大人坡跨河段,3,2.8,1.8,0.25,0.35,,,粒径（mm）,25～40,15～25,15～25,15～25,,,,

,,,大河跨河段,2.9,4.8,1.4,0.25,1.05,,,水深(m),3,2.9,4.2,2.3,,,,

,,,新寨跨河段,4.2,2.5,1.6,0.25,0.50,,,"允许不冲流速

v允（m/s）",1.8,1.4,1.6,1.5,,,,

,,,黑石头冲跨河段,2.3,2.7,1.5,0.25,0.36,,,,,,,,,,,

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,,,管道跨河段冲刷深度计算,,,,,,,,允许不冲流速计算,,,,,,,,

,,,设计参数,冲刷处水深,平均流速,允许流速,形状系数,冲刷深度,备注,,跨河河段,土质类型,粒径（mm）,水深(m),"允许不冲流速

v允（m/s）",备注,,地面线,洪水位

,,,,hp,vcp,v允,n,△hB,,,1#跨河段,大卵石,40～75,0.7,2.0,冲沟,,847.83,848.53

,,,1#跨河段,0.7,3.90,2.0,0.25,0.13,冲沟,,2#跨河段,中卵石,25～40,0.6,1.5,冲沟,,686.47,687.07

,,,2#跨河段,0.6,3.36,1.5,0.25,0.13,冲沟,,3#跨河段,中卵石,25～40,0.7,1.6,冲沟,,668.39,669.09

,,,3#跨河段,0.7,3.61,1.6,0.25,0.16,冲沟,,4#跨河段,小卵石,15～25,1.2,1.3,河沟,,647.91,649.11

,,,4#跨河段,1.2,4.10,1.3,0.25,0.40,河沟,,5#跨河段,小卵石,15～25,1.2,1.3,河沟,,647.23,648.43

,,,5#跨河段,1.2,4.02,1.3,0.25,0.39,河沟,,6#跨河段,中卵石,25～40,1.4,1.8,河沟,,608.38,609.78

,,,6#跨河段,1.4,4.52,1.8,0.25,0.36,河沟,,7#跨河段,中卵石,25～40,1.1,1.5,河沟,,601.14,602.24

,,,7#跨河段,1.1,4.43,1.5,0.25,0.34,河沟,,8#跨河段,中卵石,25～40,1.1,1.5,河沟,,656.1,657.2

,,,8#跨河段,1.1,2.78,1.5,0.25,0.18,河沟,,9#跨河段,中卵石,25～40,1.6,1.6,河沟,,647.03,648.63

,,,9#跨河段,1.6,3.46,1.6,0.25,0.34,河沟,,10#跨河段,小卵石,15～25,1.2,1.3,河沟,,647.86,649.06

,,,10#跨河段,1.2,3.55,1.3,0.25,0.34,河沟,,11#跨河段,小卵石,15～25,0.9,1.0,河沟,,649.05,649.95

,,,11#跨河段,0.9,4.45,1.0,0.25,0.41,河沟,,12#跨河段,小卵石,15～25,1.1,1.2,河沟,,648.85,649.95

,,,12#跨河段,1.1,2.78,1.2,0.25,0.26,河沟,,,,,,,,,,

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,,,跨河段设计流速计算,,,,,,,,,,,,,,,,

,,,跨河河段,设计洪水流量,设计洪水位,过水断面,设计流速,备注,,,,,,,,,,,

,,,,m3/s(5%),m,m2,m/s,,,,,,,,,,,,

,,,1#跨河段,15.2,848.53,3.9,3.90,冲沟,,,,,,,,,,,

,,,2#跨河段,14.1,687.07,4.2,3.36,冲沟,,,,,,,,,,,

,,,3#跨河段,13.7,669.09,3.8,3.61,冲沟,,,,,,,,,,,

,,,4#跨河段,16.8,649.11,4.1,4.10,河沟,,,,,,,,,,,

,,,5#跨河段,17.3,648.43,4.3,4.02,河沟,,,,,,,,,,,

,,,6#跨河段,25.3,609.78,5.6,4.52,河沟,,,,,,,,,,,

,,,7#跨河段,15.5,602.24,3.5,4.43,河沟,,,,,,,,,,,

,,,8#跨河段,14.2,657.20,5.1,2.78,河沟,,,,,,,,,,,

,,,9#跨河段,33.2,648.63,9.6,3.46,河沟,,,,,,,,,,,

,,,10#跨河段,14.9,649.06,4.2,3.55,河沟,,,,,,,,,,,

,,,11#跨河段,13.8,649.95,3.1,4.45,河沟,,,,,,,,,,,

,,,12#跨河段,23.6,649.95,8.5,2.78,河沟,,,,,,,,,,,

,,,设计规范,《