piping

   1. A process whereby a cavity or small conduit is developed in an unconsolidated soil due to progressive sediment removal by seepage water. The cavity develops headwards, as the fines are removed first and the coarser material is then washed out of the growing cavity [9]. Definition 1 is often incorrectly applied to the formation of sinkhole development — the migration of smaller particles through openings created by larger particles is of no consequence in terms of sinkhole development and should not be confused as such.
   2. Formation of a passage by water under pressure in the form of conduits through permeable materials when the hydraulic head exceeds a certain critical value [10].
   3. The mechanical washout of caves in gravels, soils, loess, etc., and shows evidence of associated collapse.

A Lexicon of Cave and Karst Terminology with Special Reference to Environmental Karst Hydrology. . 2002.

Synonyms:

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  • Piping — Pip ing (p[imac]p [i^]ng), a. [From {Pipe}, v.] 1. Playing on a musical pipe. Lowing herds and piping swains. Swift. [1913 Webster] 2. Peaceful; favorable to, or characterized by, the music of the pipe rather than of the drum and fife. Shak.… …   The Collaborative International Dictionary of English

  • Piping — (Röhrenbildung) ist eine Form der inneren Erosion. Dabei entstehen röhrenartige Kanäle in Staudämmen, Deichen oder ähnlichen Bauwerken aus Erdschüttmaterial (Sand, Erde, Ton), die bis zum Versagen führen können. Durch einen eingestauten Damm… …   Deutsch Wikipedia

  • piping — ► NOUN 1) lengths of pipe. 2) lines of icing or cream, used to decorate cakes and desserts. 3) thin cord covered in fabric and inserted along the length of a seam or hem for decoration. ● piping hot Cf. ↑piping hot …   English terms dictionary

  • Piping — Pip ing, n. 1. A small cord covered with cloth, used as trimming for women s dresses. [1913 Webster] 2. Pipes, collectively; as, the piping of a house. [1913 Webster] 3. The act of playing on a pipe; the shrill noted of birds, etc. [1913 Webster] …   The Collaborative International Dictionary of English

  • piping — [pīp′iŋ] n. 1. the act of a person who pipes 2. the music made by pipes 3. a shrill voice or sound 4. a) a system of pipes b) pipes collectively 5. a pipelike fold of material with which edges or seams are trimmed …   English World dictionary

  • Piping — Piping,   Pipe …   Universal-Lexikon

  • Piping — A bias fold or cord put on the edge of a band or garment as a finish …   Dictionary of the English textile terms

  • Piping — For other uses, see Pipe. Within industry, piping is a system of pipes used to convey fluids (liquids and gases) from one location to another. The engineering discipline of piping design studies the efficient transport of fluid. [cite book|author …   Wikipedia

  • piping — [[t]pa͟ɪpɪŋ[/t]] 1) N UNCOUNT Piping is metal, plastic, or another substance made in the shape of a pipe or tube. ...rolls of bright yellow plastic piping. 2) N UNCOUNT Piping is cloth made into a narrow tube. Piping is used to decorate the edges …   English dictionary

  • piping — pip|ing1 [ˈpaıpıŋ] n [U] 1.) a thin tube of cloth, usually with string inside, sewn onto clothing, furniture etc as decoration 2.) several pipes, or a system of pipes, used to send liquid or gas in or out of a building piping 2 piping2 adv piping …   Dictionary of contemporary English

  • piping — /ˈpaɪpɪŋ / (say puyping) noun 1. pipes collectively. 2. material formed into a pipe or pipes. 3. the act of someone or something that pipes. 4. the sound of pipes. 5. shrill sound. 6. the music of pipes. 7. a cordlike ornamentation made of icing …   Australian English dictionary

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