Swelling potential of volcanic residual soils in Sumatra (Indonesia) in relation to environmental issues
Swelling potential characterization of clay-silt soil is an essential issue in stabilization, settlement, consolidation, and land suitability studies. This article attempts to explain the swelling characteristics of soils around the area of West Lampung, Lampung Province, Sumatra, Indonesia, in rela...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Sciendo
2020-12-01
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| Series: | Environmental & Socio-economic Studies |
| Subjects: | |
| Online Access: | https://doi.org/10.2478/environ-2020-0019 |
| _version_ | 1829509488723361792 |
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| author | Iqbal Prahara Muslim Dicky Zakaria Zufialdi Permana Haryadi Satriyo Nugroho A. Syahbana Arifan J. Yunarto Khoirullah Nur Asykarullah Abdul W. |
| author_facet | Iqbal Prahara Muslim Dicky Zakaria Zufialdi Permana Haryadi Satriyo Nugroho A. Syahbana Arifan J. Yunarto Khoirullah Nur Asykarullah Abdul W. |
| author_sort | Iqbal Prahara |
| collection | DOAJ |
| description | Swelling potential characterization of clay-silt soil is an essential issue in stabilization, settlement, consolidation, and land suitability studies. This article attempts to explain the swelling characteristics of soils around the area of West Lampung, Lampung Province, Sumatra, Indonesia, in relation to environmental issues. An investigation in relation to the soil swelling potential was carried out using 15 disturbed soil samples collectd in the study area. The methods used were analyses of clay mineral geochemistry, physical characteristics, and the free swell ratio. These results showed that the soil in the study area was Quaternary tropical volcanic residual soil. These soils were formed in a proximal volcanic hydrothermal alteration environment. The soils of the study area have characteristics of high plasticity, a reddish-brown colour, and are clayey silt grained (MH) (USCS). The soils had loose physical characteristics in dry conditions; however, these soils tends to be plastic and sticky in wet conditions. Evidence of groove erosion was found at the soil surface. Based on XRD analysis, kaolinite, halloysite, and montmorillonite were types of clay minerals found in the soil. The soil had a clay content of 11.05–78.9%, a liquid limit value > 50%, a plasticity index value of 16.7–36.9%, a shrinkage value of 14.24–36.89%, a soil activity of 0.38–2.47; and an FSR value of 0.69–0.95. These characteristics have implications for swelling soil potential. The results showed that the soils in the study area had medium to very high swelling potential. These results suggest a risk of erosion in the area, which could cause soil degradation and a change in water quality. These soils are likely to affect land productivity and aquifer replenishment and will cause negative environmental and economic impacts. Thus, soil improvement techniques are needed. It is important to maintaining vegetative cover these soils and revegetation may be required. |
| first_indexed | 2024-12-16T11:47:35Z |
| format | Article |
| id | doaj.art-0a3d08336fe1455cb80bad9243e5d4db |
| institution | Directory Open Access Journal |
| issn | 2354-0079 |
| language | English |
| last_indexed | 2024-12-16T11:47:35Z |
| publishDate | 2020-12-01 |
| publisher | Sciendo |
| record_format | Article |
| series | Environmental & Socio-economic Studies |
| spelling | doaj.art-0a3d08336fe1455cb80bad9243e5d4db2022-12-21T22:32:48ZengSciendoEnvironmental & Socio-economic Studies2354-00792020-12-018411010.2478/environ-2020-0019environ-2020-0019Swelling potential of volcanic residual soils in Sumatra (Indonesia) in relation to environmental issuesIqbal Prahara0Muslim Dicky1Zakaria Zufialdi2Permana Haryadi3Satriyo Nugroho A.4Syahbana Arifan J.5Yunarto6Khoirullah Nur7Asykarullah Abdul W.8Geological Engineering Faculty, Padjadjaran University, Sumedang, 45363, IndonesiaGeological Engineering Faculty, Padjadjaran University, Sumedang, 45363, IndonesiaGeological Engineering Faculty, Padjadjaran University, Sumedang, 45363, IndonesiaGeotechnology Research Center, Indonesian Institute of Sciences, Bandung, 40135, IndonesiaGeotechnology Research Center, Indonesian Institute of Sciences, Bandung, 40135, IndonesiaGeotechnology Research Center, Indonesian Institute of Sciences, Bandung, 40135, IndonesiaGeotechnology Research Center, Indonesian Institute of Sciences, Bandung, 40135, IndonesiaGeological Engineering Faculty, Padjadjaran University, Sumedang, 45363, IndonesiaGeological Engineering Faculty, Padjadjaran University, Sumedang, 45363, IndonesiaSwelling potential characterization of clay-silt soil is an essential issue in stabilization, settlement, consolidation, and land suitability studies. This article attempts to explain the swelling characteristics of soils around the area of West Lampung, Lampung Province, Sumatra, Indonesia, in relation to environmental issues. An investigation in relation to the soil swelling potential was carried out using 15 disturbed soil samples collectd in the study area. The methods used were analyses of clay mineral geochemistry, physical characteristics, and the free swell ratio. These results showed that the soil in the study area was Quaternary tropical volcanic residual soil. These soils were formed in a proximal volcanic hydrothermal alteration environment. The soils of the study area have characteristics of high plasticity, a reddish-brown colour, and are clayey silt grained (MH) (USCS). The soils had loose physical characteristics in dry conditions; however, these soils tends to be plastic and sticky in wet conditions. Evidence of groove erosion was found at the soil surface. Based on XRD analysis, kaolinite, halloysite, and montmorillonite were types of clay minerals found in the soil. The soil had a clay content of 11.05–78.9%, a liquid limit value > 50%, a plasticity index value of 16.7–36.9%, a shrinkage value of 14.24–36.89%, a soil activity of 0.38–2.47; and an FSR value of 0.69–0.95. These characteristics have implications for swelling soil potential. The results showed that the soils in the study area had medium to very high swelling potential. These results suggest a risk of erosion in the area, which could cause soil degradation and a change in water quality. These soils are likely to affect land productivity and aquifer replenishment and will cause negative environmental and economic impacts. Thus, soil improvement techniques are needed. It is important to maintaining vegetative cover these soils and revegetation may be required.https://doi.org/10.2478/environ-2020-0019volcanicresidual soilswelling potentialenvironmental issueswest lampungsumatra |
| spellingShingle | Iqbal Prahara Muslim Dicky Zakaria Zufialdi Permana Haryadi Satriyo Nugroho A. Syahbana Arifan J. Yunarto Khoirullah Nur Asykarullah Abdul W. Swelling potential of volcanic residual soils in Sumatra (Indonesia) in relation to environmental issues Environmental & Socio-economic Studies volcanic residual soil swelling potential environmental issues west lampung sumatra |
| title | Swelling potential of volcanic residual soils in Sumatra (Indonesia) in relation to environmental issues |
| title_full | Swelling potential of volcanic residual soils in Sumatra (Indonesia) in relation to environmental issues |
| title_fullStr | Swelling potential of volcanic residual soils in Sumatra (Indonesia) in relation to environmental issues |
| title_full_unstemmed | Swelling potential of volcanic residual soils in Sumatra (Indonesia) in relation to environmental issues |
| title_short | Swelling potential of volcanic residual soils in Sumatra (Indonesia) in relation to environmental issues |
| title_sort | swelling potential of volcanic residual soils in sumatra indonesia in relation to environmental issues |
| topic | volcanic residual soil swelling potential environmental issues west lampung sumatra |
| url | https://doi.org/10.2478/environ-2020-0019 |
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