GIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan

Landslides are usually triggered by strong earthquakes, heavy rainfalls, or intensive human activities in common wisdom. However, an unexpected landslide occurred in the Yabakei area, Nakatsu, Oita, Japan, at the pre-dawn hour 3:50 a.m. on 11 April 2018, without any accompanying rainfall and earthqu...

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Autores principales:	Zheng Han, Fan Yang, Yange Li, Jie Dou, Ningsheng Chen, Guisheng Hu, Guangqi Chen, Linrong Xu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	landslide triggering mechanism smooth particle hydrodynamics surface cell impact force Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/14939fcb87d443e6893b479e5c9eefd8
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id	oai:doaj.org-article:14939fcb87d443e6893b479e5c9eefd8
record_format	dspace
spelling	oai:doaj.org-article:14939fcb87d443e6893b479e5c9eefd82021-11-11T19:54:32ZGIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan10.3390/w132130122073-4441https://doaj.org/article/14939fcb87d443e6893b479e5c9eefd82021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3012https://doaj.org/toc/2073-4441Landslides are usually triggered by strong earthquakes, heavy rainfalls, or intensive human activities in common wisdom. However, an unexpected landslide occurred in the Yabakei area, Nakatsu, Oita, Japan, at the pre-dawn hour 3:50 a.m. on 11 April 2018, without any accompanying rainfall and earthquake records during the event. This catastrophic landslide was 200 m in width, 110 m in height, and 60,000 m<sup>3</sup> in mass volume, damaging four residential buildings with fatalities of six residents at the landslide toe. Field investigation was conducted immediately to identify geological setting, hydrological condition, and landslide geomorphological characteristics. Key findings speculate that infiltration of groundwater stored in the internal fractures led to the swelling and breaking of illite and askanite in the weathered sediment rocks, resulting in the failure of the Yabakei landslide. To reproduce and explore the dynamic process of this landslide event, based on spatial GIS data, we applied the proposed three-dimensional, Herschel-Bulkley-Papanastasiou rheology model-based smooth particle hydrodynamics (HBP-SPH) method to simulate the landslide dynamic process. Buildings in the landslide area are covered by a set of surfaced cells (SC) to analyze the mass impact on the residential buildings. Results showed good accordance between observation and simulation by the proposed SC-HBP-SPH method. The landslide impact force to the residential buildings could be up to 4224.89 kN, as indicated by the simulation.Zheng HanFan YangYange LiJie DouNingsheng ChenGuisheng HuGuangqi ChenLinrong XuMDPI AGarticlelandslidetriggering mechanismsmooth particle hydrodynamicssurface cellimpact forceHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3012, p 3012 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	landslide triggering mechanism smooth particle hydrodynamics surface cell impact force Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	landslide triggering mechanism smooth particle hydrodynamics surface cell impact force Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Zheng Han Fan Yang Yange Li Jie Dou Ningsheng Chen Guisheng Hu Guangqi Chen Linrong Xu GIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan
description	Landslides are usually triggered by strong earthquakes, heavy rainfalls, or intensive human activities in common wisdom. However, an unexpected landslide occurred in the Yabakei area, Nakatsu, Oita, Japan, at the pre-dawn hour 3:50 a.m. on 11 April 2018, without any accompanying rainfall and earthquake records during the event. This catastrophic landslide was 200 m in width, 110 m in height, and 60,000 m<sup>3</sup> in mass volume, damaging four residential buildings with fatalities of six residents at the landslide toe. Field investigation was conducted immediately to identify geological setting, hydrological condition, and landslide geomorphological characteristics. Key findings speculate that infiltration of groundwater stored in the internal fractures led to the swelling and breaking of illite and askanite in the weathered sediment rocks, resulting in the failure of the Yabakei landslide. To reproduce and explore the dynamic process of this landslide event, based on spatial GIS data, we applied the proposed three-dimensional, Herschel-Bulkley-Papanastasiou rheology model-based smooth particle hydrodynamics (HBP-SPH) method to simulate the landslide dynamic process. Buildings in the landslide area are covered by a set of surfaced cells (SC) to analyze the mass impact on the residential buildings. Results showed good accordance between observation and simulation by the proposed SC-HBP-SPH method. The landslide impact force to the residential buildings could be up to 4224.89 kN, as indicated by the simulation.
format	article
author	Zheng Han Fan Yang Yange Li Jie Dou Ningsheng Chen Guisheng Hu Guangqi Chen Linrong Xu
author_facet	Zheng Han Fan Yang Yange Li Jie Dou Ningsheng Chen Guisheng Hu Guangqi Chen Linrong Xu
author_sort	Zheng Han
title	GIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan
title_short	GIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan
title_full	GIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan
title_fullStr	GIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan
title_full_unstemmed	GIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan
title_sort	gis-based three-dimensional sph simulation for the 11 april 2018 yabakei landslide at oita nakatsu, japan
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/14939fcb87d443e6893b479e5c9eefd8
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GIS-Based Three-Dimensional SPH Simulation for the 11 April 2018 Yabakei Landslide at Oita Nakatsu, Japan

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