pil·ing /ˈpaɪlɪŋ/
 打樁,樁材,打樁工程


 Pile, v. t. [imp. & p. p. Piled p. pr. & vb. n. Piling.]
 1. To lay or throw into a pile or heap; to heap up; to collect into a mass; to accumulate; to amass; -- often with up; as, to pile up wood. “Hills piled on hills.” --Dryden. “Life piled on life.” --Tennyson.
    The labor of an age in piled stones.   --Milton.
 2. To cover with heaps; or in great abundance; to fill or overfill; to load.
 To pile arms To pile muskets Mil., to place three guns together so that they may stand upright, supporting each other; to stack arms.

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 Pil·ing n.
 1. The act of heaping up.
 2. Iron Manuf. The process of building up, heating, and working, fagots, or piles, to form bars, etc.


 Pil·ing, n.  A series of piles; piles considered collectively; as, the piling of a bridge.
 Pug piling, sheet piles connected together at the edges by dovetailed tongues and grooves.
 Sheet piling, a series of piles made of planks or half logs driven edge to edge, -- used to form the walls of cofferdams, etc.

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 piling
      n : a column of wood or steel or concrete that is driven into
          the ground to provide support for a structure [syn: pile,
           spile, stilt]