Analysis of The Effectiveness of Sediment Control Structures and River Improvement on The Omu River Post-Earthquake in Sigi Regency
This study aims to analyze the effectiveness of sediment control structures, such as sabo and consolidation dams, and river normalization on sediment control in the Omu River after the earthquake in Sigi Regency on September 28, 2018. The analysis was conducted using the Universal Soil Loss Equation...
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Direktorat Bina Teknik Sumber Daya Air
2024-06-01
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| Series: | Jurnal Teknik Hidraulik |
| Online Access: | http://jurnalth.pusair-pu.go.id/index.php/JTH/article/view/749 |
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| author | Angga Eko Putranto Mohammad Bagus Adityawan Arie Setiadi Moerwanto Dantje Kardana Natakusumah |
| author_facet | Angga Eko Putranto Mohammad Bagus Adityawan Arie Setiadi Moerwanto Dantje Kardana Natakusumah |
| author_sort | Angga Eko Putranto |
| collection | DOAJ |
| description | This study aims to analyze the effectiveness of sediment control structures, such as sabo and consolidation dams, and river normalization on sediment control in the Omu River after the earthquake in Sigi Regency on September 28, 2018. The analysis was conducted using the Universal Soil Loss Equation (USLE) method based on average rainfall data over 20 years. Erosion and sedimentation volumes before and after the earthquake were analyzed to understand the changes. The results showed that in 2020, the erosion volume reached 120,700.27 m³/year, and sedimentation was 17,030.81 m³/year, an increase from 2017, which recorded an erosion volume of 91,282.60 m³/year and sedimentation of 12,879.97 m³/year. Sediment transport simulation with daily discharge over 12 years indicated that in Scenario-1, sediment could be reduced by 10.81%, and in Scenario-3 by 23.18%. Meanwhile, simulation with Q100 flood discharge in Scenario-2 showed sediment reduction by 47.18%, and in Scenario-4 by 62.96%. The general conclusion of this study is that sediment control structures and river normalization are effective in reducing sediment volumes. Specifically, the construction of sediment control structures has proven to significantly reduce erosion and sedimentation. This research highlights the importance of structural improvements in mitigating post-disaster erosion impacts. The results of this study can serve as a reference for planning and implementing sediment control in disaster-prone areas.
Keywords: sediment control, sabo dam, consolidation dam, river normalization, Omu river |
| format | Article |
| id | doaj-art-5c570a3d97334a0885821c682e078dba |
| institution | Kabale University |
| issn | 2087-3611 2580-8087 |
| language | English |
| publishDate | 2024-06-01 |
| publisher | Direktorat Bina Teknik Sumber Daya Air |
| record_format | Article |
| series | Jurnal Teknik Hidraulik |
| spelling | doaj-art-5c570a3d97334a0885821c682e078dba2024-12-02T06:36:50ZengDirektorat Bina Teknik Sumber Daya AirJurnal Teknik Hidraulik2087-36112580-80872024-06-01151314610.32679/jth.v15i1.749518Analysis of The Effectiveness of Sediment Control Structures and River Improvement on The Omu River Post-Earthquake in Sigi RegencyAngga Eko Putranto0Mohammad Bagus Adityawan1Arie Setiadi Moerwanto2Dantje Kardana Natakusumah3Ministry of Public Works and Housing; Graduate School of Water Resources Management, Faculty of Civil and Environmental Engineering, ITB.Center for Water Resources Development, Faculty of Civil and Environmental Engineering, ITB; Undergraduate School of Water Resources Engineering and Management Faculty of Civil and Environmental EngineeringMinistry of Public Works and HousingCenter for Water Resources Development, Faculty of Civil and Environmental Engineering, ITBThis study aims to analyze the effectiveness of sediment control structures, such as sabo and consolidation dams, and river normalization on sediment control in the Omu River after the earthquake in Sigi Regency on September 28, 2018. The analysis was conducted using the Universal Soil Loss Equation (USLE) method based on average rainfall data over 20 years. Erosion and sedimentation volumes before and after the earthquake were analyzed to understand the changes. The results showed that in 2020, the erosion volume reached 120,700.27 m³/year, and sedimentation was 17,030.81 m³/year, an increase from 2017, which recorded an erosion volume of 91,282.60 m³/year and sedimentation of 12,879.97 m³/year. Sediment transport simulation with daily discharge over 12 years indicated that in Scenario-1, sediment could be reduced by 10.81%, and in Scenario-3 by 23.18%. Meanwhile, simulation with Q100 flood discharge in Scenario-2 showed sediment reduction by 47.18%, and in Scenario-4 by 62.96%. The general conclusion of this study is that sediment control structures and river normalization are effective in reducing sediment volumes. Specifically, the construction of sediment control structures has proven to significantly reduce erosion and sedimentation. This research highlights the importance of structural improvements in mitigating post-disaster erosion impacts. The results of this study can serve as a reference for planning and implementing sediment control in disaster-prone areas. Keywords: sediment control, sabo dam, consolidation dam, river normalization, Omu riverhttp://jurnalth.pusair-pu.go.id/index.php/JTH/article/view/749 |
| spellingShingle | Angga Eko Putranto Mohammad Bagus Adityawan Arie Setiadi Moerwanto Dantje Kardana Natakusumah Analysis of The Effectiveness of Sediment Control Structures and River Improvement on The Omu River Post-Earthquake in Sigi Regency Jurnal Teknik Hidraulik |
| title | Analysis of The Effectiveness of Sediment Control Structures and River Improvement on The Omu River Post-Earthquake in Sigi Regency |
| title_full | Analysis of The Effectiveness of Sediment Control Structures and River Improvement on The Omu River Post-Earthquake in Sigi Regency |
| title_fullStr | Analysis of The Effectiveness of Sediment Control Structures and River Improvement on The Omu River Post-Earthquake in Sigi Regency |
| title_full_unstemmed | Analysis of The Effectiveness of Sediment Control Structures and River Improvement on The Omu River Post-Earthquake in Sigi Regency |
| title_short | Analysis of The Effectiveness of Sediment Control Structures and River Improvement on The Omu River Post-Earthquake in Sigi Regency |
| title_sort | analysis of the effectiveness of sediment control structures and river improvement on the omu river post earthquake in sigi regency |
| url | http://jurnalth.pusair-pu.go.id/index.php/JTH/article/view/749 |
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