Wavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method

When the finite element-strength reduction method is used for two-dimensional slope stability analysis for elastic-perfectly plastic material, the failure criterion usually adopts the criterion of plastic zone penetration. That is, when the slope is in the limit equilibrium state, the plastic zone g...

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Autores principales:	Yongfeng Cheng, Zhibao Nie, Chao Han, Shijun Ding, Kaiyuan Liu
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	slope stability analysis strength reduction method critical slip surface wavelet packet analysis 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/91170e9388c54cef9e5f658c83904442
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spelling	oai:doaj.org-article:91170e9388c54cef9e5f658c839044422021-11-11T15:09:52ZWavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method10.3390/app1121100982076-3417https://doaj.org/article/91170e9388c54cef9e5f658c839044422021-10-01T00:00:00Zhttps://www.mdpi.com/2076-3417/11/21/10098https://doaj.org/toc/2076-3417When the finite element-strength reduction method is used for two-dimensional slope stability analysis for elastic-perfectly plastic material, the failure criterion usually adopts the criterion of plastic zone penetration. That is, when the slope is in the limit equilibrium state, the plastic zone goes through the slope from the toe to the top. Meanwhile, the critical slip surface is composed of a series of points of maximum equivalent plastic strain along the depth direction. By deploying a set of parallel lines approximately perpendicular to the slope surface and picking out the points of these lines with the maximum equivalent strain points, we obtain a series of points taking on a wave shape, which constitutes a signal function. Subsequently, the wavelet packet analysis is used to smooth these points, i.e., locating the critical slip surface. The analysis of classic examples and comparison with Spencer’s method show that the proposed method in this paper is reasonable and effective.Yongfeng ChengZhibao NieChao HanShijun DingKaiyuan LiuMDPI AGarticleslope stability analysisstrength reduction methodcritical slip surfacewavelet packet analysisTechnologyTEngineering (General). Civil engineering (General)TA1-2040Biology (General)QH301-705.5PhysicsQC1-999ChemistryQD1-999ENApplied Sciences, Vol 11, Iss 10098, p 10098 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	slope stability analysis strength reduction method critical slip surface wavelet packet analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999
spellingShingle	slope stability analysis strength reduction method critical slip surface wavelet packet analysis Technology T Engineering (General). Civil engineering (General) TA1-2040 Biology (General) QH301-705.5 Physics QC1-999 Chemistry QD1-999 Yongfeng Cheng Zhibao Nie Chao Han Shijun Ding Kaiyuan Liu Wavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method
description	When the finite element-strength reduction method is used for two-dimensional slope stability analysis for elastic-perfectly plastic material, the failure criterion usually adopts the criterion of plastic zone penetration. That is, when the slope is in the limit equilibrium state, the plastic zone goes through the slope from the toe to the top. Meanwhile, the critical slip surface is composed of a series of points of maximum equivalent plastic strain along the depth direction. By deploying a set of parallel lines approximately perpendicular to the slope surface and picking out the points of these lines with the maximum equivalent strain points, we obtain a series of points taking on a wave shape, which constitutes a signal function. Subsequently, the wavelet packet analysis is used to smooth these points, i.e., locating the critical slip surface. The analysis of classic examples and comparison with Spencer’s method show that the proposed method in this paper is reasonable and effective.
format	article
author	Yongfeng Cheng Zhibao Nie Chao Han Shijun Ding Kaiyuan Liu
author_facet	Yongfeng Cheng Zhibao Nie Chao Han Shijun Ding Kaiyuan Liu
author_sort	Yongfeng Cheng
title	Wavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method
title_short	Wavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method
title_full	Wavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method
title_fullStr	Wavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method
title_full_unstemmed	Wavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method
title_sort	wavelet packet method for locating critical slip surface using the strength reduction method
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/91170e9388c54cef9e5f658c83904442
work_keys_str_mv	AT yongfengcheng waveletpacketmethodforlocatingcriticalslipsurfaceusingthestrengthreductionmethod AT zhibaonie waveletpacketmethodforlocatingcriticalslipsurfaceusingthestrengthreductionmethod AT chaohan waveletpacketmethodforlocatingcriticalslipsurfaceusingthestrengthreductionmethod AT shijunding waveletpacketmethodforlocatingcriticalslipsurfaceusingthestrengthreductionmethod AT kaiyuanliu waveletpacketmethodforlocatingcriticalslipsurfaceusingthestrengthreductionmethod
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Wavelet Packet Method for Locating Critical Slip Surface Using the Strength Reduction Method

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