A micro pile is a pile with a small diameter (Approx. 100-400mm) and therefore cannot be installed to as great a depth as larger diameter piles.
The word "pile" can have a number of uses depending on the context. Everyday English: In normal everyday English the word pile may be used to describe a heap or mound of a material or a disorganised...
That depends on the size of the piles
Nine piles of sand.
A Prairie is a very rare bird that lives in Prairie vill and its feacies is piled in a small heap known as a Prairie Pile