Spatial distribution of natural debris-flow impact
The high destructive potential of debris flows poses a challenge for the design of structural mitigation measures to protect vulnerable areas. An essential part of designing such structures is to determine the magnitude and spatial distribution of the impact forces. The impact is expected to be rela...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_06015.pdf |
| _version_ | 1797740234915446784 |
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| author | Nagl Georg Kaitna Roland Hübl Johannes |
| author_facet | Nagl Georg Kaitna Roland Hübl Johannes |
| author_sort | Nagl Georg |
| collection | DOAJ |
| description | The high destructive potential of debris flows poses a challenge for the design of structural mitigation measures to protect vulnerable areas. An essential part of designing such structures is to determine the magnitude and spatial distribution of the impact forces. The impact is expected to be related to the composition of the flow, which can vary from clay to large boulders along a flow event and between events. Experimental studies are prone to scaling bias and benchmark observations at the full scale are rare so far. Here we present measurements of the temporal and spatial variations of the impact of a natural debris flow in the Gadria creek, IT, onto an instrumented barrier structure. The flow event was preceded by a precursory surge, which was then followed by the debris flow with multiple surges. The flow height reached up to 2.3 m. We found that the impact of boulders occurs primarily in the upper half of the flow profile, the highest forces were measured in first part of the flow, and deposition has a strong influence on the lower part of the structure by damping and/or redirection. |
| first_indexed | 2024-03-12T14:09:32Z |
| format | Article |
| id | doaj.art-477859c345cd425c9aed8fe43e465c3a |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-12T14:09:32Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-477859c345cd425c9aed8fe43e465c3a2023-08-21T09:02:38ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014150601510.1051/e3sconf/202341506015e3sconf_dfhm82023_06015Spatial distribution of natural debris-flow impactNagl Georg0Kaitna Roland1Hübl Johannes2University of Natural Resources and Life SciencesUniversity of Natural Resources and Life SciencesUniversity of Natural Resources and Life SciencesThe high destructive potential of debris flows poses a challenge for the design of structural mitigation measures to protect vulnerable areas. An essential part of designing such structures is to determine the magnitude and spatial distribution of the impact forces. The impact is expected to be related to the composition of the flow, which can vary from clay to large boulders along a flow event and between events. Experimental studies are prone to scaling bias and benchmark observations at the full scale are rare so far. Here we present measurements of the temporal and spatial variations of the impact of a natural debris flow in the Gadria creek, IT, onto an instrumented barrier structure. The flow event was preceded by a precursory surge, which was then followed by the debris flow with multiple surges. The flow height reached up to 2.3 m. We found that the impact of boulders occurs primarily in the upper half of the flow profile, the highest forces were measured in first part of the flow, and deposition has a strong influence on the lower part of the structure by damping and/or redirection.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_06015.pdf |
| spellingShingle | Nagl Georg Kaitna Roland Hübl Johannes Spatial distribution of natural debris-flow impact E3S Web of Conferences |
| title | Spatial distribution of natural debris-flow impact |
| title_full | Spatial distribution of natural debris-flow impact |
| title_fullStr | Spatial distribution of natural debris-flow impact |
| title_full_unstemmed | Spatial distribution of natural debris-flow impact |
| title_short | Spatial distribution of natural debris-flow impact |
| title_sort | spatial distribution of natural debris flow impact |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/52/e3sconf_dfhm82023_06015.pdf |
| work_keys_str_mv | AT naglgeorg spatialdistributionofnaturaldebrisflowimpact AT kaitnaroland spatialdistributionofnaturaldebrisflowimpact AT hubljohannes spatialdistributionofnaturaldebrisflowimpact |