Failure mechanism of TRSS mode in landslides induced by earthquake

Abstract Investigation of the slopes in the Wenchuan earthquake shows that tension failures appear in the upper part in many landslides. The typical failure mode can be generalized as “tensile-rupture and sheared-sliding” (TRSS). In this paper, the distinct element method (DEM) is employed to simula...

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Autores principales:	Renli Liu, Yanhui Han, Jun Xiao, Tao Wang
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2020
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/b368a289ada84a12ba7807e27cdf81de
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spelling	oai:doaj.org-article:b368a289ada84a12ba7807e27cdf81de2021-12-02T15:10:11ZFailure mechanism of TRSS mode in landslides induced by earthquake10.1038/s41598-020-78503-y2045-2322https://doaj.org/article/b368a289ada84a12ba7807e27cdf81de2020-12-01T00:00:00Zhttps://doi.org/10.1038/s41598-020-78503-yhttps://doaj.org/toc/2045-2322Abstract Investigation of the slopes in the Wenchuan earthquake shows that tension failures appear in the upper part in many landslides. The typical failure mode can be generalized as “tensile-rupture and sheared-sliding” (TRSS). In this paper, the distinct element method (DEM) is employed to simulate the gradual failure process of the Tangjiashan landslide under the excitation of the Wenchuan earthquake. It is found that the first failure is the appearance of deep tension cracks on the top, and then shearing slip along the bottom. The posterior fracture is deep, steep, and rough, and the bottom shear slip surface has a relatively gently dip. The simulation shows the failure mode of TRSS in the slope can be well reproduced, and the geological and mechanical mechanisms can be revealed in the DEM model.Renli LiuYanhui HanJun XiaoTao WangNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 10, Iss 1, Pp 1-11 (2020)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Renli Liu Yanhui Han Jun Xiao Tao Wang Failure mechanism of TRSS mode in landslides induced by earthquake
description	Abstract Investigation of the slopes in the Wenchuan earthquake shows that tension failures appear in the upper part in many landslides. The typical failure mode can be generalized as “tensile-rupture and sheared-sliding” (TRSS). In this paper, the distinct element method (DEM) is employed to simulate the gradual failure process of the Tangjiashan landslide under the excitation of the Wenchuan earthquake. It is found that the first failure is the appearance of deep tension cracks on the top, and then shearing slip along the bottom. The posterior fracture is deep, steep, and rough, and the bottom shear slip surface has a relatively gently dip. The simulation shows the failure mode of TRSS in the slope can be well reproduced, and the geological and mechanical mechanisms can be revealed in the DEM model.
format	article
author	Renli Liu Yanhui Han Jun Xiao Tao Wang
author_facet	Renli Liu Yanhui Han Jun Xiao Tao Wang
author_sort	Renli Liu
title	Failure mechanism of TRSS mode in landslides induced by earthquake
title_short	Failure mechanism of TRSS mode in landslides induced by earthquake
title_full	Failure mechanism of TRSS mode in landslides induced by earthquake
title_fullStr	Failure mechanism of TRSS mode in landslides induced by earthquake
title_full_unstemmed	Failure mechanism of TRSS mode in landslides induced by earthquake
title_sort	failure mechanism of trss mode in landslides induced by earthquake
publisher	Nature Portfolio
publishDate	2020
url	https://doaj.org/article/b368a289ada84a12ba7807e27cdf81de
work_keys_str_mv	AT renliliu failuremechanismoftrssmodeinlandslidesinducedbyearthquake AT yanhuihan failuremechanismoftrssmodeinlandslidesinducedbyearthquake AT junxiao failuremechanismoftrssmodeinlandslidesinducedbyearthquake AT taowang failuremechanismoftrssmodeinlandslidesinducedbyearthquake
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Failure mechanism of TRSS mode in landslides induced by earthquake

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