Construct · 1 fields · 2 citations

piping: a standalone construct

One name. One construct. A landmark on the map.

● anchor · a standalone construct Nearest construct by meaning·not indexed
piping1 CONSTRUCTInternal erosion pipingTERZAGHI · PIPING FAILURE

A single standalone construct; nearby constructs are located against it in the Collider. Tap a field for its definition, unit, and measures.

Geotechnical engineering

Seepage erodes a hidden channel back through soil

In geotechnical engineering, piping is a form of internal erosion in which seepage water passing through or beneath an earth dam, levee, or foundation carries soil particles with it, hollowing out a continuous open channel (a “pipe”) that grows backward from the seepage exit toward the water source. As the channel lengthens the flow concentrates and accelerates, and if it reaches the reservoir the structure can fail suddenly. Terzaghi, Peck and Mesri treat it under seepage and heave, and Richards and Reddy appraise the mechanism in earth dams. This destructive subsurface process shares only its name with a sewn upholstery cord.[1][2]

Unit
The hydraulic gradient at which seepage begins to move soil
Recovery means
Not applicable
Measured by
Assessed by the critical hydraulic gradient, seepage velocity, and the soil's grading and susceptibility to backward erosion

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Nearby constructs

abrasion3 fields · 3 citationsjingle · one word, three constructsbackflow3 fields · 3 citationsinvariant · one construct, three systemsbackpressure2 fields · 2 citationsinvariant · one construct, three systems

References

  1. Terzaghi, K., Peck, R. B., & Mesri, G. (1996). Soil mechanics in engineering practice (3rd ed.). John Wiley & Sons. ISBN 9780471086581
  2. Richards, K. S., & Reddy, K. R. (2007). Critical appraisal of piping phenomena in earth dams. Bulletin of Engineering Geology and the Environment, 66(4), 381–402. https://doi.org/10.1007/s10064-007-0095-0

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