Investigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan

The deep-seated landslide in the Lantai area, Taiwan, has a long history of landslide activity and often damages the sole access road to the Tai-Ping Mountain National Forest Recreation Area. This study adopted the high-resolution digital terrain model (DTMH) derived from UAV mounted LiDAR point clo...

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Autores principales:	Meei-Ling Lin, Yen-Cheng Chen, Yao-Hsien Tseng, Kuo-Jen Chang, Kuo-Lung Wang
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	deep-seated landslide Lantai area LiDAR high-resolution DTM geological structure numerical model Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/a7e84a00e4a240f9bf103d7bfd148fea
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spelling	oai:doaj.org-article:a7e84a00e4a240f9bf103d7bfd148fea2021-11-11T15:08:09ZInvestigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan10.3390/app1121100522076-3417https://doaj.org/article/a7e84a00e4a240f9bf103d7bfd148fea2021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10052https://doaj.org/toc/2076-3417The deep-seated landslide in the Lantai area, Taiwan, has a long history of landslide activity and often damages the sole access road to the Tai-Ping Mountain National Forest Recreation Area. This study adopted the high-resolution digital terrain model (DTMH) derived from UAV mounted LiDAR point cloud data for mapping geological structures and verified through field investigation. A slope model was proposed with mapped geological structures and shear zone, and numerical analysis was conducted using finite difference analysis. The failure mechanism was found to be significantly affected by the shear zone bounded by geological structures, which would not have been uncovered without the high-resolution DTM (DTMH). The resulting landslide behavior consisted well with mapped scarp, borehole data, and conformed with the event records. These results provided vital information supporting hazard mitigation strategy.Meei-Ling LinYen-Cheng ChenYao-Hsien TsengKuo-Jen ChangKuo-Lung WangMDPI AGarticledeep-seated landslideLantai areaLiDARhigh-resolution DTMgeological structurenumerical modelTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10052, p 10052 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	deep-seated landslide Lantai area LiDAR high-resolution DTM geological structure numerical model Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	deep-seated landslide Lantai area LiDAR high-resolution DTM geological structure numerical model Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Meei-Ling Lin Yen-Cheng Chen Yao-Hsien Tseng Kuo-Jen Chang Kuo-Lung Wang Investigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan
description	The deep-seated landslide in the Lantai area, Taiwan, has a long history of landslide activity and often damages the sole access road to the Tai-Ping Mountain National Forest Recreation Area. This study adopted the high-resolution digital terrain model (DTMH) derived from UAV mounted LiDAR point cloud data for mapping geological structures and verified through field investigation. A slope model was proposed with mapped geological structures and shear zone, and numerical analysis was conducted using finite difference analysis. The failure mechanism was found to be significantly affected by the shear zone bounded by geological structures, which would not have been uncovered without the high-resolution DTM (DTMH). The resulting landslide behavior consisted well with mapped scarp, borehole data, and conformed with the event records. These results provided vital information supporting hazard mitigation strategy.
format	article
author	Meei-Ling Lin Yen-Cheng Chen Yao-Hsien Tseng Kuo-Jen Chang Kuo-Lung Wang
author_facet	Meei-Ling Lin Yen-Cheng Chen Yao-Hsien Tseng Kuo-Jen Chang Kuo-Lung Wang
author_sort	Meei-Ling Lin
title	Investigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan
title_short	Investigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan
title_full	Investigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan
title_fullStr	Investigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan
title_full_unstemmed	Investigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan
title_sort	investigation of geological structures using uav lidar and its effects on the failure mechanism of deep-seated landslide in lantai area, taiwan
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/a7e84a00e4a240f9bf103d7bfd148fea
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Investigation of Geological Structures Using UAV Lidar and Its Effects on the Failure Mechanism of Deep-Seated Landslide in Lantai Area, Taiwan

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