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CONTACT EROSION [1 record]

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Record 1 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

Spanish

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