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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Autores principales:	Suttisak Soralump, Avishek Shrestha, Worawat Thowiwat, Ramatre Sukjaroen, Thapthai Chaithong, Sirisart Yangsanphu, Abhishek Koirala, Apiniti Jotisankasa
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/33e0d9cee7be42d49f7ae47ed968b9e4
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spelling	oai:doaj.org-article:33e0d9cee7be42d49f7ae47ed968b9e42021-11-28T12:17:23ZAssessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand10.1038/s41598-021-02363-32045-2322https://doaj.org/article/33e0d9cee7be42d49f7ae47ed968b9e42021-11-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-02363-3https://doaj.org/toc/2045-2322Abstract 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.Suttisak SoralumpAvishek ShresthaWorawat ThowiwatRamatre SukjaroenThapthai ChaithongSirisart YangsanphuAbhishek KoiralaApiniti JotisankasaNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q 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
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.
format	article
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
title	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_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_sort	assessment of landslide behaviour in colluvium deposit at doi chang, thailand
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/33e0d9cee7be42d49f7ae47ed968b9e4
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Assessment of landslide behaviour in colluvium deposit at Doi Chang, Thailand

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