A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
GIS Mapping and Geostatistical Analysis of Dredged Soil Properties of Mangalam Reservoir
Mangalam Dam is one of the significant sources of irrigation water in Kerala. Sediment deposition due to devastating floods and massive rainfall reduced the capacity of the reservoir significantly. Dredging is essential for maintaining the storage capacity of reservoirs, which yield a bulk quantity of soil. Understanding variation in the physical and engineering properties of sediments in the water body concerning depth and locations is helpful to assess the scope of reservoir dredged sediments in earthwork structures. This paper focuses on the use of Arc GIS for recording, analysing, and presenting the geotechnical data of dredged sediments to make a record of sediment properties. Arc GIS is used to prepare a zone map of properties of dredged sediments in different locations. For that collected 15 soil samples from the reservoir bed at a depth of 2 m for GIS mapping and statistical analysis. The initial characterization is done by conducting particle size distribution, Atterberg limits and specific gravity tests on various samples. The samples collected can be classified as low, intermediate, and high compressible silt and silty sand soil. Based on the laboratory test results, the percentage of clay and soil liquid limit varied among places. Using the IDW technique, soil properties of nearby areas are interpolated. The IDW method generates continuous fields of characteristics at all locations by employing the same set of parameters at all times. The map is helpful to get information regarding the type of sediment deposit at different areas of the reservoir. Compaction tests on soil samples from two reservoir locations showed that reservoir sediment could be used for embankment construction with or without stabilization depending upon the nature of sediment assessed using the GIS map.
GIS Mapping and Geostatistical Analysis of Dredged Soil Properties of Mangalam Reservoir
Mangalam Dam is one of the significant sources of irrigation water in Kerala. Sediment deposition due to devastating floods and massive rainfall reduced the capacity of the reservoir significantly. Dredging is essential for maintaining the storage capacity of reservoirs, which yield a bulk quantity of soil. Understanding variation in the physical and engineering properties of sediments in the water body concerning depth and locations is helpful to assess the scope of reservoir dredged sediments in earthwork structures. This paper focuses on the use of Arc GIS for recording, analysing, and presenting the geotechnical data of dredged sediments to make a record of sediment properties. Arc GIS is used to prepare a zone map of properties of dredged sediments in different locations. For that collected 15 soil samples from the reservoir bed at a depth of 2 m for GIS mapping and statistical analysis. The initial characterization is done by conducting particle size distribution, Atterberg limits and specific gravity tests on various samples. The samples collected can be classified as low, intermediate, and high compressible silt and silty sand soil. Based on the laboratory test results, the percentage of clay and soil liquid limit varied among places. Using the IDW technique, soil properties of nearby areas are interpolated. The IDW method generates continuous fields of characteristics at all locations by employing the same set of parameters at all times. The map is helpful to get information regarding the type of sediment deposit at different areas of the reservoir. Compaction tests on soil samples from two reservoir locations showed that reservoir sediment could be used for embankment construction with or without stabilization depending upon the nature of sediment assessed using the GIS map.
GIS Mapping and Geostatistical Analysis of Dredged Soil Properties of Mangalam Reservoir
Lecture Notes in Civil Engineering
Muthukkumaran, Kasinathan (editor) / Jakka, Ravi Sankar (editor) / Parthasarathy, C. R. (editor) / Soundara, B. (editor) / Athira, S. (author) / Subaida, E. A. (author)
Indian Geotechnical Conference ; 2021 ; Trichy, India
2022-12-01
11 pages
Article/Chapter (Book)
Electronic Resource
English
Geostatistical Analysis for Mapping of Soil Properties
| Springer Verlag | 2024
Beneficial reuse of dredged reservoir fine sediments
| HENRY – Federal Waterways Engineering and Research Institute (BAW) | 2019
Engineering Properties of Lightly Cemented Dredged Soil
| British Library Conference Proceedings | 2016