Which structural failure increases within dry-stone retaining walls when intense rain occurs?

💡 Explanation

When rainfall penetrates dry-stone walls, hydrostatic pressure buildup increases behind the wall because water drainage is impeded. This increases the outward force via fluid pressure mechanism. Therefore, collapse chance increases, rather than reduced earth forces or enhanced cohesion.

• Which outcome arises from exceeding the annealing temperature during wrought iron production?
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