Rock structures do not all have a design life of 30-50 years and an average annual maintenance of 1-2% of capital cost!
Armour stability under wave attack is a critical factor in determining design life. However, other features such as interlocking, geotechnical stability, scour and overtopping can affect rock structure life cycles. Understanding how these work is a key to effective design, construction and maintenance.
There are typically five phases within a rock structure life cycle, which can vary with design, construction and maintenance.
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