Detail publikačního výsledku

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

PETRULA, L.; ŘÍHA, J.

Originální název

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

Anglický název

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

Druh

Článek WoS

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

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

Klíčová slova v angličtině

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

Autoři

PETRULA, L.; ŘÍHA, J.

Rok RIV

2023

Vydáno

24.05.2022

Nakladatel

Institute of Hydrology SAS

Místo

Bratislava, Slovak Republic

ISSN

1338-4333

Periodikum

Journal of Hydrology and Hydromechanics

Svazek

70

Číslo

3

Stát

Slovenská republika

Strany od

376

Strany do

384

Strany počet

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="0042-790X",
  url="http://www.uh.sav.sk/jhh/Find-Issues/All-Issues?kod=70,3"
}