shoring
  利用支柱的支撐,支柱
  Shore, v. t. [imp. & p. p. Shored p. pr. & vb. n. Shoring.]  To support by a shore or shores; to prop; -- usually with up; as, to shore up a building.
  Shor·ing, n.
  1. The act of supporting or strengthening with a prop or shore.
  2. A system of props; props, collectively.
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  shoring
       n 1: a beam or timber that is propped against a structure to
            provide support [syn: shore]
       2: the act of propping up with shores [syn: shoring up, propping
          up]