What indicated us and for what is the Kα coefficient? It indicates the obliquity of swell and its used to determine the Ho It indicates the worst wave direction in the buoy and it is used to calculate the vector Ho It indicates diffraction in the roundhead and it is used for calculating the Ho None of the above.
Considering that storm moved some pieces of the filter, which is failure stage of the breakwater? If the loss was quantified by 8% then, is the breakwater unstable? Initiation of damage, stable breakwater. Initiation of destruction, stable breakwater Destruction, unstable breakwater Initiation of destruction, unstable breakwater.
Hudson ́s formulation for breakwater presents among others, the following limits: Test irregular swell and scale effects Cross section is null overtopping and considers only peak periods It does not differentiate the type of the wave break or upward and downward balance None of the above.
Between the most frequent problems in the breakwater are: Faults in the rock armour Break of the rock armour elements Damage due to overtopping Al lof the above.
Which are the advantages of vertical breakwaters compared to rubble-mound breakwaters? Reduced need for quarry materials, lower dependence on bearing capacity of the ground Minor occupaton of sea bed, minor build time, zero wave transmisión across the structure Most economical solution for Deep Waters (h>20m), reduced wave run-up Favorable solution at surf área, lower wave reflection.
Rubble-mound of a vertical breakwater has the following functions: Avoiding overturning of upright structure and spreading the vertical load due to the weight of upright section. Spreading the vertical load due to the weight of upright section, and protecting strucutre again wave turbulance. Spread the vertical load due to the weight to upright section, facilitate setting of the caisson and protect the sea bed at the toe of the structure. Avoiding high forces of breaking waves.
What is the meaning of overtopping rate? Volume of the overtopping produced with the desing wave. Volume of the water discharged per lineal meter. Mean rate of overtopping volumen per unit length during the ocurrence of storm waves. Maximum rateo of overtopping volumen per unit length during the ocurrence of storm waves.
Which following formula estimates pressures for breaking waves conditions? Sainflou Hiroi Goda B and c are correct.
Containing quay walls are classified in Gravity quay and screen wall Gravity quay and concrete caisson quay Platform quay and sheet piles quay A and c are correct.
Dreding is affected by the following conditions Type of work, characteristics of location, enviromental factors, climate conditions Archeology, characteristics of location, enviromental factors, type of material Enviromental factors, climate conditions, type of work, characteristics of location, maritime traffic, dredging volume , characteristics of equipment Economic factors, wave conditions, characteristics of location, maritime traffic, dredging volumen, characteristics of equipment.
When a wave impacts on a vertical wall Maximum wave pressure occurs at the top of structure Maximum wave pressure occurs at still wáter level Wave pressure is always constant at the submerged wall The position of máximum pressure in the wall is determined by wave period.
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