Establishing Reliable Slope Stability Hazard Map Based on GIS-Based Tool in Conjunction with Finite Element Methods
This paper describes the establishment of a slope stability hazard map based on a GIS-based tool in conjunction with the finite element method (FEM). In this regard, Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) images were modeled using the Weight of Evidence (WOE) techniq...
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| Format: | Article |
| Language: | English |
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Wiley
2022-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2022/3384143 |
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| author | Fhatuwani Sengani Nndanduleni Muavhi François Mulenga |
| author_facet | Fhatuwani Sengani Nndanduleni Muavhi François Mulenga |
| author_sort | Fhatuwani Sengani |
| collection | DOAJ |
| description | This paper describes the establishment of a slope stability hazard map based on a GIS-based tool in conjunction with the finite element method (FEM). In this regard, Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) images were modeled using the Weight of Evidence (WOE) technique. The previous simulation was therefore validated using visual observations and FEM (Phase 2D and SLIDE). The above techniques made it possible to develop and validate the reliable slope stability hazard map with the use of a case study. The results show that the established hazard map correlates very well with visual observation and stability assessment performed using FEM models. The map categorises slopes based on their susceptibility to failure; however, it has been discovered that most of the slopes that rated highly susceptible were located along or closer to geological features (faults) or streams and were at high elevations. Similarly, the SLIDE model has been utilised to perform the safety factor of the identified slope and the model has shown that those slopes were not stable. Furthermore, the influence of geological features was further studied using the Phase 2D model and it was discovered that the features contributed largely to the displacement of the rock mass with time, and as a result, instability was expected. The overall conclusion of the study is that the combination of geotechnical and GIS-based tools appeared to provide an insight in categorising the hazard of slopes located within mountainous terrain. |
| format | Article |
| id | doaj-art-47ed889030734512b0c7a67eb22f166f |
| institution | Kabale University |
| issn | 1687-8094 |
| language | English |
| publishDate | 2022-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-47ed889030734512b0c7a67eb22f166f2025-08-20T03:36:07ZengWileyAdvances in Civil Engineering1687-80942022-01-01202210.1155/2022/3384143Establishing Reliable Slope Stability Hazard Map Based on GIS-Based Tool in Conjunction with Finite Element MethodsFhatuwani Sengani0Nndanduleni Muavhi1François Mulenga2Department of Geology and MiningDepartment of Geology and MiningDepartment of Electrical and Mining EngineeringThis paper describes the establishment of a slope stability hazard map based on a GIS-based tool in conjunction with the finite element method (FEM). In this regard, Advanced Space-borne Thermal Emission and Reflection Radiometer (ASTER) images were modeled using the Weight of Evidence (WOE) technique. The previous simulation was therefore validated using visual observations and FEM (Phase 2D and SLIDE). The above techniques made it possible to develop and validate the reliable slope stability hazard map with the use of a case study. The results show that the established hazard map correlates very well with visual observation and stability assessment performed using FEM models. The map categorises slopes based on their susceptibility to failure; however, it has been discovered that most of the slopes that rated highly susceptible were located along or closer to geological features (faults) or streams and were at high elevations. Similarly, the SLIDE model has been utilised to perform the safety factor of the identified slope and the model has shown that those slopes were not stable. Furthermore, the influence of geological features was further studied using the Phase 2D model and it was discovered that the features contributed largely to the displacement of the rock mass with time, and as a result, instability was expected. The overall conclusion of the study is that the combination of geotechnical and GIS-based tools appeared to provide an insight in categorising the hazard of slopes located within mountainous terrain.http://dx.doi.org/10.1155/2022/3384143 |
| spellingShingle | Fhatuwani Sengani Nndanduleni Muavhi François Mulenga Establishing Reliable Slope Stability Hazard Map Based on GIS-Based Tool in Conjunction with Finite Element Methods Advances in Civil Engineering |
| title | Establishing Reliable Slope Stability Hazard Map Based on GIS-Based Tool in Conjunction with Finite Element Methods |
| title_full | Establishing Reliable Slope Stability Hazard Map Based on GIS-Based Tool in Conjunction with Finite Element Methods |
| title_fullStr | Establishing Reliable Slope Stability Hazard Map Based on GIS-Based Tool in Conjunction with Finite Element Methods |
| title_full_unstemmed | Establishing Reliable Slope Stability Hazard Map Based on GIS-Based Tool in Conjunction with Finite Element Methods |
| title_short | Establishing Reliable Slope Stability Hazard Map Based on GIS-Based Tool in Conjunction with Finite Element Methods |
| title_sort | establishing reliable slope stability hazard map based on gis based tool in conjunction with finite element methods |
| url | http://dx.doi.org/10.1155/2022/3384143 |
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