A new small-scale experimental device for testing backward erosion piping
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 pred...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2022-09-01
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| Series: | Journal of Hydrology and Hydromechanics |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/johh-2022-0023 |
| _version_ | 1817997591600693248 |
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| author | Petrula Lubomír Říha Jaromír |
| author_facet | Petrula Lubomír Říha Jaromír |
| author_sort | Petrula Lubomír |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-14T02:40:36Z |
| format | Article |
| id | doaj.art-e9a53fe8e6df41748b85362e8fd76366 |
| institution | Directory Open Access Journal |
| issn | 1338-4333 |
| language | English |
| last_indexed | 2024-04-14T02:40:36Z |
| publishDate | 2022-09-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Journal of Hydrology and Hydromechanics |
| spelling | doaj.art-e9a53fe8e6df41748b85362e8fd763662022-12-22T02:17:11ZengSciendoJournal of Hydrology and Hydromechanics1338-43332022-09-0170337638410.2478/johh-2022-0023A new small-scale experimental device for testing backward erosion pipingPetrula Lubomír0Říha Jaromír1Faculty of Civil Engineering, Brno University of Technology, Veveri 95, 602 00Brno, Czech Republic.Faculty of Civil Engineering, Brno University of Technology, Veveri 95, 602 00Brno, Czech Republic.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.https://doi.org/10.2478/johh-2022-0023backward erosion pipingseepageexperimental researchcritical hydraulic gradient |
| spellingShingle | Petrula Lubomír Říha Jaromír A new small-scale experimental device for testing backward erosion piping Journal of Hydrology and Hydromechanics backward erosion piping seepage experimental research critical hydraulic gradient |
| title | A new small-scale experimental device for testing backward erosion piping |
| title_full | A new small-scale experimental device for testing backward erosion piping |
| title_fullStr | A new small-scale experimental device for testing backward erosion piping |
| title_full_unstemmed | A new small-scale experimental device for testing backward erosion piping |
| title_short | A new small-scale experimental device for testing backward erosion piping |
| title_sort | new small scale experimental device for testing backward erosion piping |
| topic | backward erosion piping seepage experimental research critical hydraulic gradient |
| url | https://doi.org/10.2478/johh-2022-0023 |
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