Symbol 



Lm 



Total 

 F 



V 



f 



fi 



G. 



Definition 



Hydrostatic force on seaward 

 side of quay wall caisson after 

 backfilling 



Total horizontal inertial force 

 on a pile at a given instant 



Maximum value of F. for given 

 wave 



Lift force (lateral force on pile 

 from flow velocity) 



Maximum lift force for given wave 



Minimum fetch length 



Dimensionless fall time parameter 

 (eq. A-29) 



Total horizontal force per unit 

 length of wall subjected to 

 nonbreaking wave length 



Total force on pile group 



Vertical forces on quay wall 

 caisson to initiate sliding 



Direction term (eq. 4-55) 



Coriolis parameter 



• Wave frequency 



• Horizontal force per unit 

 length of pile 



• Decimal frequency (eq. 4-53) 



• Darcy-Weisbach resistance 

 coefficient (eq. 4-67) 



Horizontal drag force per unit 

 length of vertical pile 



Bottom friction factor 



Bottom friction factor at seaward 

 edge of segment 



Horizontal inertial force per 

 unit length of vertical pile 



Maximum force per unit length of 

 pile 



• Frequency of wind sea spectral 

 peak (eq. 3-32) 



Fractional growth factor of 

 equivalent initial wave 



Dimensionless parameter for 

 determining beach accretion 

 or erosion 



Gravitational acceleration 



Subscript for: 



• Group 



• Gage 



• Gross 



Dimension 



F/L 



F/L 

 F 



T 



F/L 



F/L 



F/L 



F/L 

 0.-1 



L/T' 



Example Units 



Metric 



kN/m 



N/m of wall 

 N 



N 



s_j, hr 



N/m 



N/m 



N/m 



N/m 

 -1 



m/s 



English 



lb/ ft 



lb 



lb 



lb 

 lb 



ft 



lb/ft of wall 

 lb 



lb 



s_j, hr 

 s 



lb/ ft 



lb/ ft 



lb/ft 



lb/ft 

 -1 



ft/s' 



(Continued) 



B4 



