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suffosion [2 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2008-03-06

English

Subject field(s)
  • Geomorphology and Geomorphogeny
DEF

Undermining through removal of sediment by mechanical and corrosional action of underground water.

CONT

The processes of dissolution, where surface rock ... are dissolved, and suffosion, where cavities form below the land surface, are responsible for virtually all sinkholes in Florida.

French

Domaine(s)
  • Géomorphologie et géomorphogénie
DEF

Perte de substance d'un relief, d'un versant, par soutirage de matériaux fins accompagnés d'un affaissement.

OBS

suffosion : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

Campo(s) temático(s)
  • Geomorfología y geomorfogénesis
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Record 2 1990-09-28

English

Subject field(s)
  • Sewers and Drainage
  • Soil Mechanics (Engineering)
CONT

Mineral clogging starts to develop at the interface between the geotextile (or pipe wall) and the adjacent soil. It is therefore defined as a contact process. Two clogging processes can be distinguished: contact erosion ... which occurs when particles of nearly all sizes are washed out locally and contact suffosion ... when only the fine particles are washed out leaving a skeleton, consisting of coarser particles, behind. In subsurface drainage systems, contact erosion should be restricted. Contact suffosion is allowed, provided however that the envelope does not clog.

French

Domaine(s)
  • Égouts et drainage
  • Mécanique des sols
DEF

Tassement de la surface du terrain par la lévigation (due aux eaux souterraines) des composants solubles ainsi que par le déplacement des particules colloïdales qui constituent la roche meuble.

Spanish

Save record 2

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