Rainfall induced erosion of soils used in earth roads
Earth roads in rural areas of the developing world are key engines to the development of countries. They give access to education and health services, sustain agriculture and businesses, and promote social interactions between communities. However, earth roads suffer substantially from poor engineer...
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EDP Sciences
2019-01-01
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doaj-0ef023f4db134f6eb33f83a5187e3a242021-02-02T00:46:25ZengEDP SciencesE3S Web of Conferences2267-12422019-01-01921700610.1051/e3sconf/20199217006e3sconf_isg2019_17006Rainfall induced erosion of soils used in earth roadsNgezahayo EsdrasBurrow Michael P.N.Ghataora Gurmel S.Earth roads in rural areas of the developing world are key engines to the development of countries. They give access to education and health services, sustain agriculture and businesses, and promote social interactions between communities. However, earth roads suffer substantially from poor engineering and funding for construction and maintenance. Rainfall is probably their most dangerous enemy resulting in soil particle detachment leading to the loss of surface material. A laboratory rainfall simulator was used to identify the performance of an earth road surface compacted at the maximum dry density against rainfall energy and surface flow. Under the rain intensity of 30mm/hr, erosion increased with rain duration from 0 to 30 minutes. Fine sand (0.06 – 0.02mm) and medium sand (0.02 – 0.6mm) particles eroded faster than coarse sand (0.6 – 2mm) and gravel (> 2mm) particles of the sediments collected at 5 minutes intervals of time. Additionally, a 20cm x 20cm photograph at the same place was analysed using ImageJ software and showed reduction in number of particles from 18554 at 10 min to 5803 at 25 min as smaller particles had eroded in the meantime.https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/18/e3sconf_isg2019_17006.pdf |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ngezahayo Esdras Burrow Michael P.N. Ghataora Gurmel S. |
spellingShingle |
Ngezahayo Esdras Burrow Michael P.N. Ghataora Gurmel S. Rainfall induced erosion of soils used in earth roads E3S Web of Conferences |
author_facet |
Ngezahayo Esdras Burrow Michael P.N. Ghataora Gurmel S. |
author_sort |
Ngezahayo Esdras |
title |
Rainfall induced erosion of soils used in earth roads |
title_short |
Rainfall induced erosion of soils used in earth roads |
title_full |
Rainfall induced erosion of soils used in earth roads |
title_fullStr |
Rainfall induced erosion of soils used in earth roads |
title_full_unstemmed |
Rainfall induced erosion of soils used in earth roads |
title_sort |
rainfall induced erosion of soils used in earth roads |
publisher |
EDP Sciences |
series |
E3S Web of Conferences |
issn |
2267-1242 |
publishDate |
2019-01-01 |
description |
Earth roads in rural areas of the developing world are key engines to the development of countries. They give access to education and health services, sustain agriculture and businesses, and promote social interactions between communities. However, earth roads suffer substantially from poor engineering and funding for construction and maintenance. Rainfall is probably their most dangerous enemy resulting in soil particle detachment leading to the loss of surface material. A laboratory rainfall simulator was used to identify the performance of an earth road surface compacted at the maximum dry density against rainfall energy and surface flow. Under the rain intensity of 30mm/hr, erosion increased with rain duration from 0 to 30 minutes. Fine sand (0.06 – 0.02mm) and medium sand (0.02 – 0.6mm) particles eroded faster than coarse sand (0.6 – 2mm) and gravel (> 2mm) particles of the sediments collected at 5 minutes intervals of time. Additionally, a 20cm x 20cm photograph at the same place was analysed using ImageJ software and showed reduction in number of particles from 18554 at 10 min to 5803 at 25 min as smaller particles had eroded in the meantime. |
url |
https://www.e3s-conferences.org/articles/e3sconf/pdf/2019/18/e3sconf_isg2019_17006.pdf |
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AT ngezahayoesdras rainfallinducederosionofsoilsusedinearthroads AT burrowmichaelpn rainfallinducederosionofsoilsusedinearthroads AT ghataoragurmels rainfallinducederosionofsoilsusedinearthroads |
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