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一様勾配斜面への不規則波(R1/3)の打ち上げ高の計算
１、設計条件
参考: Van der meer,J.W.and C.M.Stam:wave runup on smooth and rock slopes of coastal
structures,J.Waterway,Port,Coastal and Ocean Engineering,ASCE,Vol.118,No.5,
pp.534-550,1992
沖波波高 Ho' : 12.0 m
沖波周期 To : 15.5 sec
海底勾配 N : 1 / 20
海底勾配（角度） β : 2.862 °
有義波高 Hs : 5.3 m
・沖波の波長計算
Lo= gTo2 = 9.8 * 15.5 2
2π 2 * π
= 375 m
２、Ho'/Loの計算
Ho'/Lo= 12.0 / 375.0
= 0.032
３、surf similarityパラメータの計算
ζ= tanβ(Ho'/Lo)0.5
= tan( 2.862 ) * 0.032 0.5
= 0.008943
４、不規則波の有義波高(R1/3)打ち上げ高の計算
※(0＜ζ≦2.2)対象式にて計算
R 1/3 = (0.25+1.1ζ)*Hs
= (0.25+1.1*0.008943)*5.3
= 1.377 m