Publication detail

A new small-scale experimental device for testing backward erosion piping

PETRULA, L. ŘÍHA, J.

Original Title

A new small-scale experimental device for testing backward erosion piping

Type

journal article in Web of Science

Language

English

Original Abstract

Backward erosion piping is driven by seepage forces acting on the soil grains at the downstream end of the seepage path. A new device for the laboratory testing of backward erosion progression was developed and tested. The device consists of a plexiglass prism at which the seepage path has been predefined. The prism was equipped with an inflow consisting of gravel separated from tested sand by a strainer. The hydraulic gradient along the seepage pipe was observed by a set of piezometers and pressure cells, and the seepage discharge was measured volumetrically. The transported sediment was trapped in a vertical cone located downstream from the device. The progression of the seepage path, the piezometric heads and the trapped material was observed by two synchronous cameras. 15 trial tests have been carried out to date, and from these, the interim results are presented.

Keywords

Backward erosion piping; Seepage; Experimental research; Critical hydraulic gradient

Authors

PETRULA, L.; ŘÍHA, J.

Released

24. 5. 2022

Publisher

Institute of Hydrology SAS

Location

Bratislava, Slovak Republic

ISBN

1338-4333

Periodical

Journal of Hydrology and Hydromechanics

Year of study

70

Number

3

State

Slovak Republic

Pages from

376

Pages to

384

Pages count

9

URL

http://www.uh.sav.sk/jhh/Find-Issues/All-Issues?kod=70,3

BibTex

@article{BUT178874,
  author="Lubomír {Petrula} and Jaromír {Říha}",
  title="A new small-scale experimental device for testing backward erosion piping",
  journal="Journal of Hydrology and Hydromechanics",
  year="2022",
  volume="70",
  number="3",
  pages="376--384",
  doi="10.2478/johh-2022-0023",
  issn="1338-4333",
  url="http://www.uh.sav.sk/jhh/Find-Issues/All-Issues?kod=70,3"
}