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| Content Provider | Springer Nature Link |
|---|---|
| Author | Choi, Yosoon Park, Hyeong Dong Sunwoo, Choon |
| Copyright Year | 2008 |
| Abstract | This paper considers the flood and gully erosion problems at the Pasir open pit coal mine located in a humid region in Indonesia. Using the geographic information systems (GIS), quantitative information on the hydrological characteristics of the surface drainage system were obtained from a digital elevation model (DEM). Based on the results of the drainage analysis, raster-based spatial analysis was carried out to distinguish the bench slopes with concentrated surface drainage flows and to calculate the ratio between the amount of incoming water and the size of the temporary storage ponds. Finally, the bench slopes most vulnerable to gully erosion were identified and an optimal design for pump allocation suggested to reduce the risk of flooding during heavy rainfall. Since these recommendations were implemented, there has been no down-time due to flooding.L’article considère les problèmes d’inondation et d’érosion par ravinement dans la mine à ciel ouvert de charbon de Pasir, située dans une région humide de l’Indonésie. Utilisant un Système d’Information Géographique (SIG), des informations quantitatives sur les caractéristiques hydrologiques du système de drainage superficiel ont été obtenues, prenant appui sur un Modèle Numérique de Terrain (MNT). A partir des résultats de l’analyse du système de drainage, une analyse spatiale suivant un format raster a été réalisée afin d’identifier les pentes de gradins présentant de forts écoulements concentrés et de calculer, pour les zones de stockage temporaire, les rapports entre les quantités d’eau entrant et la taille de ces zones. Finalement, les pentes de gradins les plus sensibles à l’érosion par ravinement ont été identifiées et un schéma de mise en place de pompes a été proposé afin de réduire le risque d’inondation durant les périodes de pluies intenses. Depuis que ces recommandations ont été mises en oeuvre, il n’y a pas eu de temps d’arrêt d’activité dus à des problèmes d’inondation. |
| Starting Page | 251 |
| Ending Page | 258 |
| Page Count | 8 |
| File Format | |
| ISSN | 14359529 |
| Journal | Bulletin of the International Association of Engineering Geology - Bulletin de l'Association Internationale de Géologie de l'Ingénieur |
| Volume Number | 67 |
| Issue Number | 2 |
| e-ISSN | 14359537 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2008-02-07 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Mine à ciel ouvert Système d’Information Géographique (SIG) Analyse de drainage Modèle Numérique de Terrain Indonésie Nature Conservation Geoecology/Natural Processes Structural Foundations, Hydraulic Engineering Applied Geosciences |
| Content Type | Text |
| Resource Type | Article |
| Subject | Geology Geotechnical Engineering and Engineering Geology |
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