What are the factors determining the stability of a single armour unit?

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There are mainly three main factors which govern the stability of a armour unit, namely, gravity, intertangling and squeezing. Obviously, it is beyond doubt that the ability of the armour unit to stay in place should be closely related to gravity force.

On the other hand, the geometry of the armour unit also affects its stability. For instance, with the difference in ability to intertangle, their resistance to pulling out by waves varies. Furthermore, squeezing forces by gravity also affects the stability of the armour unit which is dependent on frictional forces in all directions.


This question is taken from book named – A Self Learning Manual – Mastering Different Fields of Civil Engineering Works (VC-Q-A-Method) by Vincent T. H. CHU.

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