Geometrical and geotechnical characterization of the earth fissures appeared in the Guadalentín Valley (southeastern Spain) after the September 2012 flooding
<p>Two earth fissures appeared in Murcia province (southeastern Spain) after the flood occurred because of a heavy downpour on 28 September 2012. In this area, located within the Guadalentín Valley, up to 212 L m<span class="inline-formula"><sup>−2&l...
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2020-04-01
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| Series: | Proceedings of the International Association of Hydrological Sciences |
| Online Access: | https://www.proc-iahs.net/382/663/2020/piahs-382-663-2020.pdf |
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| author | J. L. Pastor J. Mulas R. Tomás G. Herrera J. A. Fernández-Merodo M. Béjar-Pizarro L. Jordá J. C. García López-Davalillos R. Aragón R. M. Mateos |
| author_facet | J. L. Pastor J. Mulas R. Tomás G. Herrera J. A. Fernández-Merodo M. Béjar-Pizarro L. Jordá J. C. García López-Davalillos R. Aragón R. M. Mateos |
| author_sort | J. L. Pastor |
| collection | DOAJ |
| description | <p>Two earth fissures appeared in Murcia province (southeastern Spain)
after the flood occurred because of a heavy downpour on 28 September 2012.
In this area, located within the Guadalentín Valley, up to 212 L m<span class="inline-formula"><sup>−2</sup></span> was reported that day. More than 200 agricultural
exploitations were destroyed by the flooding, with a devastating effect on
many infrastructures, such as a main A-7 highway bridge that collapsed in
this event. The earth fissures appeared after this flooding in the towns of
Puerto Lumbreras and Totana. The first fissure showed a straight-line
direction approximately parallel to the main geological structures of the
Guadalentín Valley. The total length of the fissure was 400 m and was 2 to 3 m in depth. The soil in the fissure is classified as a low-plasticity silt with
some sand and clay, ML, according to the Unified Soil Classification System.
From the sieve and hydrometer tests, the percentage of silt in these samples
was between 48 % and 68 %, the clay content between 12 % and 30 % and the sand
content between 2 % and 40 %. The plasticity index was smaller than 9.2 for all
the samples. To evaluate the piping and internal erosion susceptibility of
the soil, pinhole, crumb and geochemical tests were done on the collected
samples. A result of non-dispersive soil was obtained from crumb and pinhole
tests. Nevertheless, the pH, sodium adsorption ratio and exchangeable sodium
percentage tests showed that some samples could be affected by the
dispersion of the soil. Also, the collapsible potential of the soil was
studied, showing negative results for all the samples except for that
collected at the southern end of the fissure, which showed a medium to high
potential. Concerning the Totana fissure, it appeared with different
branches and holes instead of as a rectilinear pattern. The total length of
the fissure was 190 m, with the soil characterized as a silty soil. Lastly,
INSAR data, GPS, GPR and land subsidence maps were used to study the
possible origin of these fissures.</p> |
| first_indexed | 2024-12-13T00:55:03Z |
| format | Article |
| id | doaj.art-acd4f97f7cfe4b7681a05941313bec46 |
| institution | Directory Open Access Journal |
| issn | 2199-8981 2199-899X |
| language | English |
| last_indexed | 2024-12-13T00:55:03Z |
| publishDate | 2020-04-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Proceedings of the International Association of Hydrological Sciences |
| spelling | doaj.art-acd4f97f7cfe4b7681a05941313bec462022-12-22T00:04:49ZengCopernicus PublicationsProceedings of the International Association of Hydrological Sciences2199-89812199-899X2020-04-0138266366710.5194/piahs-382-663-2020Geometrical and geotechnical characterization of the earth fissures appeared in the Guadalentín Valley (southeastern Spain) after the September 2012 floodingJ. L. Pastor0J. Mulas1R. Tomás2G. Herrera3J. A. Fernández-Merodo4M. Béjar-Pizarro5L. Jordá6J. C. García López-Davalillos7R. Aragón8R. M. Mateos9Department of Civil Engineering. University of Alicante, P.O. Box 99, 03080 Alicante, SpainGrupo de Riesgos Geológicos, Departamento de Investigación y Prospectiva Geo-científica, Instituto Geológico y Minero de España (IGME), Ministerio de Economía y Competitividad, c/ Alenza 1, 28003 Madrid, SpainDepartment of Civil Engineering. University of Alicante, P.O. Box 99, 03080 Alicante, SpainGrupo de Riesgos Geológicos, Departamento de Investigación y Prospectiva Geo-científica, Instituto Geológico y Minero de España (IGME), Ministerio de Economía y Competitividad, c/ Alenza 1, 28003 Madrid, SpainGrupo de Riesgos Geológicos, Departamento de Investigación y Prospectiva Geo-científica, Instituto Geológico y Minero de España (IGME), Ministerio de Economía y Competitividad, c/ Alenza 1, 28003 Madrid, SpainGrupo de Riesgos Geológicos, Departamento de Investigación y Prospectiva Geo-científica, Instituto Geológico y Minero de España (IGME), Ministerio de Economía y Competitividad, c/ Alenza 1, 28003 Madrid, SpainGrupo de Riesgos Geológicos, Departamento de Investigación y Prospectiva Geo-científica, Instituto Geológico y Minero de España (IGME), Ministerio de Economía y Competitividad, c/ Alenza 1, 28003 Madrid, SpainGrupo de Riesgos Geológicos, Departamento de Investigación y Prospectiva Geo-científica, Instituto Geológico y Minero de España (IGME), Ministerio de Economía y Competitividad, c/ Alenza 1, 28003 Madrid, SpainGrupo de Riesgos Geológicos, Departamento de Investigación y Prospectiva Geo-científica, Instituto Geológico y Minero de España (IGME), Ministerio de Economía y Competitividad, c/ Alenza 1, 28003 Madrid, SpainGrupo de Riesgos Geológicos, Departamento de Investigación y Prospectiva Geo-científica, Instituto Geológico y Minero de España (IGME), Ministerio de Economía y Competitividad, c/ Alenza 1, 28003 Madrid, Spain<p>Two earth fissures appeared in Murcia province (southeastern Spain) after the flood occurred because of a heavy downpour on 28 September 2012. In this area, located within the Guadalentín Valley, up to 212 L m<span class="inline-formula"><sup>−2</sup></span> was reported that day. More than 200 agricultural exploitations were destroyed by the flooding, with a devastating effect on many infrastructures, such as a main A-7 highway bridge that collapsed in this event. The earth fissures appeared after this flooding in the towns of Puerto Lumbreras and Totana. The first fissure showed a straight-line direction approximately parallel to the main geological structures of the Guadalentín Valley. The total length of the fissure was 400 m and was 2 to 3 m in depth. The soil in the fissure is classified as a low-plasticity silt with some sand and clay, ML, according to the Unified Soil Classification System. From the sieve and hydrometer tests, the percentage of silt in these samples was between 48 % and 68 %, the clay content between 12 % and 30 % and the sand content between 2 % and 40 %. The plasticity index was smaller than 9.2 for all the samples. To evaluate the piping and internal erosion susceptibility of the soil, pinhole, crumb and geochemical tests were done on the collected samples. A result of non-dispersive soil was obtained from crumb and pinhole tests. Nevertheless, the pH, sodium adsorption ratio and exchangeable sodium percentage tests showed that some samples could be affected by the dispersion of the soil. Also, the collapsible potential of the soil was studied, showing negative results for all the samples except for that collected at the southern end of the fissure, which showed a medium to high potential. Concerning the Totana fissure, it appeared with different branches and holes instead of as a rectilinear pattern. The total length of the fissure was 190 m, with the soil characterized as a silty soil. Lastly, INSAR data, GPS, GPR and land subsidence maps were used to study the possible origin of these fissures.</p>https://www.proc-iahs.net/382/663/2020/piahs-382-663-2020.pdf |
| spellingShingle | J. L. Pastor J. Mulas R. Tomás G. Herrera J. A. Fernández-Merodo M. Béjar-Pizarro L. Jordá J. C. García López-Davalillos R. Aragón R. M. Mateos Geometrical and geotechnical characterization of the earth fissures appeared in the Guadalentín Valley (southeastern Spain) after the September 2012 flooding Proceedings of the International Association of Hydrological Sciences |
| title | Geometrical and geotechnical characterization of the earth fissures appeared in the Guadalentín Valley (southeastern Spain) after the September 2012 flooding |
| title_full | Geometrical and geotechnical characterization of the earth fissures appeared in the Guadalentín Valley (southeastern Spain) after the September 2012 flooding |
| title_fullStr | Geometrical and geotechnical characterization of the earth fissures appeared in the Guadalentín Valley (southeastern Spain) after the September 2012 flooding |
| title_full_unstemmed | Geometrical and geotechnical characterization of the earth fissures appeared in the Guadalentín Valley (southeastern Spain) after the September 2012 flooding |
| title_short | Geometrical and geotechnical characterization of the earth fissures appeared in the Guadalentín Valley (southeastern Spain) after the September 2012 flooding |
| title_sort | geometrical and geotechnical characterization of the earth fissures appeared in the guadalentin valley southeastern spain after the september 2012 flooding |
| url | https://www.proc-iahs.net/382/663/2020/piahs-382-663-2020.pdf |
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