Assessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand
Abstract The paper presents the case study of the recurrent slope movement in colluvium deposits at Doi Chang, Thailand. A thorough site investigation confirmed the slope movement rate corresponding to slow creep during dry season, while in the rainy season, its velocity remarkably increased. Despit...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-11-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-021-02363-3 |
| _version_ | 1818856463460728832 |
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| author | Suttisak Soralump Avishek Shrestha Worawat Thowiwat Ramatre Sukjaroen Thapthai Chaithong Sirisart Yangsanphu Abhishek Koirala Apiniti Jotisankasa |
| author_facet | Suttisak Soralump Avishek Shrestha Worawat Thowiwat Ramatre Sukjaroen Thapthai Chaithong Sirisart Yangsanphu Abhishek Koirala Apiniti Jotisankasa |
| author_sort | Suttisak Soralump |
| collection | DOAJ |
| description | Abstract The paper presents the case study of the recurrent slope movement in colluvium deposits at Doi Chang, Thailand. A thorough site investigation confirmed the slope movement rate corresponding to slow creep during dry season, while in the rainy season, its velocity remarkably increased. Despite frequent repair, the movement rate was sufficient to result in the recurrent damage of infrastructures like roads and buildings, causing economic loss and public concerns. Furthermore, surface mapping revealed that the hill's topography led to the concentration of flowing water in a particular area. This resulted in a high level of groundwater table, especially during the rainy season. The inclinometer installed in that area suggested an average movement rate of 20.5 mm/month in the wet season. In contrast, during the dry season, it was limited within 2 mm/month, indicating that the increase in the rate of slope movement in the colluvium deposit was primarily due to the rising groundwater table. Field and laboratory tests were conducted to determine the properties of the colluvium deposit. Landslide susceptibility assessment was performed using infinite slope model and later integrated with GIS to evaluate the factor of safety (FS) over a large area. The FS decreased below 1 when the groundwater level rose to 0.3 cm below the ground surface, and using GIS, based on infinite slope model, the potential risk zone were delineated. |
| first_indexed | 2024-12-19T08:24:54Z |
| format | Article |
| id | doaj.art-33e0d9cee7be42d49f7ae47ed968b9e4 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-12-19T08:24:54Z |
| publishDate | 2021-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-33e0d9cee7be42d49f7ae47ed968b9e42022-12-21T20:29:18ZengNature PortfolioScientific Reports2045-23222021-11-0111111210.1038/s41598-021-02363-3Assessment of landslide behaviour in colluvium deposit at Doi Chang, ThailandSuttisak Soralump0Avishek Shrestha1Worawat Thowiwat2Ramatre Sukjaroen3Thapthai Chaithong4Sirisart Yangsanphu5Abhishek Koirala6Apiniti Jotisankasa7Geotechnical Engineering Division, Department of Civil Engineering, Faculty of Engineering, Kasetsart UniversityGeotechnical Engineering Research and Development Center, Kasetsart UniversityGeotechnical Engineering Research and Development Center, Kasetsart UniversityGeotechnical Engineering Research and Development Center, Kasetsart UniversityGeotechnical Engineering Research and Development Center, Kasetsart UniversityGeotechnical Engineering Research and Development Center, Kasetsart UniversityGeotechnical Engineering Research and Development Center, Kasetsart UniversityGeotechnical Engineering Division, Department of Civil Engineering, Faculty of Engineering, Kasetsart UniversityAbstract The paper presents the case study of the recurrent slope movement in colluvium deposits at Doi Chang, Thailand. A thorough site investigation confirmed the slope movement rate corresponding to slow creep during dry season, while in the rainy season, its velocity remarkably increased. Despite frequent repair, the movement rate was sufficient to result in the recurrent damage of infrastructures like roads and buildings, causing economic loss and public concerns. Furthermore, surface mapping revealed that the hill's topography led to the concentration of flowing water in a particular area. This resulted in a high level of groundwater table, especially during the rainy season. The inclinometer installed in that area suggested an average movement rate of 20.5 mm/month in the wet season. In contrast, during the dry season, it was limited within 2 mm/month, indicating that the increase in the rate of slope movement in the colluvium deposit was primarily due to the rising groundwater table. Field and laboratory tests were conducted to determine the properties of the colluvium deposit. Landslide susceptibility assessment was performed using infinite slope model and later integrated with GIS to evaluate the factor of safety (FS) over a large area. The FS decreased below 1 when the groundwater level rose to 0.3 cm below the ground surface, and using GIS, based on infinite slope model, the potential risk zone were delineated.https://doi.org/10.1038/s41598-021-02363-3 |
| spellingShingle | Suttisak Soralump Avishek Shrestha Worawat Thowiwat Ramatre Sukjaroen Thapthai Chaithong Sirisart Yangsanphu Abhishek Koirala Apiniti Jotisankasa Assessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand Scientific Reports |
| title | Assessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand |
| title_full | Assessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand |
| title_fullStr | Assessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand |
| title_full_unstemmed | Assessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand |
| title_short | Assessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand |
| title_sort | assessment of landslide behaviour in colluvium deposit at doi chang thailand |
| url | https://doi.org/10.1038/s41598-021-02363-3 |
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