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Coastal Engineering: Theory and Practice
Table 9.2. Prototype and model details of the breakwater section.
Layer
Prototype (kg)
Model (gram)
Primary armour
9000
600
Secondary armour
1000 to 1500
67 to 100
Core
10 to 150
0.67 to 10
Filter
1 to 1.5
0.67to 0.1
Table 9.3. Loading conditions for the breakwater at —9m CD.
Loading
Prototype
Model
Wave
height (m)
Wave
period (sec)
Wave
height (m)
Wave
Period (sec)
Normal
5
9
0.202
1.81
Design
5.4
9
0.218
1.81
Shake down
3.7
9
0.150
1.81
Over loading 1
6.8
9
0.275
1.81
Over loading 2
6.8
9
0.275
1.81
Photo 9.2 View of the model inside the flume.
As a resuit of the study conducted, no significant damage to the structure was observed and hence it is safe to erect the proposed breakwater
section in the field.