Simplified Boundary Element Method for Kinematic Response of Single Piles in Two-Layer Soil

A simple approach is formulated to predict the elastic, kinematic pile bending during harmonic or transient excitation for a circular pile (rather than a simplified thin strip). The kinematic response of a pile embedded in two-layer soil is resolved in the frequency domain caused by the upward propa...

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Main Authors: Fayun Liang, Haibing Chen, Wei Dong Guo
Format: Article
Language:English
Published: Wiley 2013-01-01
Series:Journal of Applied Mathematics
Online Access:http://dx.doi.org/10.1155/2013/241482
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author Fayun Liang
Haibing Chen
Wei Dong Guo
author_facet Fayun Liang
Haibing Chen
Wei Dong Guo
author_sort Fayun Liang
collection DOAJ
description A simple approach is formulated to predict the elastic, kinematic pile bending during harmonic or transient excitation for a circular pile (rather than a simplified thin strip). The kinematic response of a pile embedded in two-layer soil is resolved in the frequency domain caused by the upward propagation of shear waves from the underlying bedrock. The simplified approach is generally valid to nonhomogeneous soil profiles, in light of the good comparison with the dynamic FE method and BDWF solution. It employs the soil-displacement-influence coefficients Is to consider the pile-soil interaction (resembling the spring constant kx in the BDWF) and provides conservative estimations of maximum kinematic bending moments at the soil-layer interface (with a sharper stiffness contrast). The accuracy of the approach may be improved by incorporating the interaction of soil into the soil-displacement-influence coefficients Is for such cases with Vb/Va<3.
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institution DOAJ
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language English
publishDate 2013-01-01
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record_format Article
series Journal of Applied Mathematics
spelling doaj-art-cd749185c9b44d65a1eb062f4b41fced2025-08-20T03:19:35ZengWileyJournal of Applied Mathematics1110-757X1687-00422013-01-01201310.1155/2013/241482241482Simplified Boundary Element Method for Kinematic Response of Single Piles in Two-Layer SoilFayun Liang0Haibing Chen1Wei Dong Guo2Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, ChinaKey Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, ChinaSchool of Civil Mining and Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, AustraliaA simple approach is formulated to predict the elastic, kinematic pile bending during harmonic or transient excitation for a circular pile (rather than a simplified thin strip). The kinematic response of a pile embedded in two-layer soil is resolved in the frequency domain caused by the upward propagation of shear waves from the underlying bedrock. The simplified approach is generally valid to nonhomogeneous soil profiles, in light of the good comparison with the dynamic FE method and BDWF solution. It employs the soil-displacement-influence coefficients Is to consider the pile-soil interaction (resembling the spring constant kx in the BDWF) and provides conservative estimations of maximum kinematic bending moments at the soil-layer interface (with a sharper stiffness contrast). The accuracy of the approach may be improved by incorporating the interaction of soil into the soil-displacement-influence coefficients Is for such cases with Vb/Va<3.http://dx.doi.org/10.1155/2013/241482
spellingShingle Fayun Liang
Haibing Chen
Wei Dong Guo
Simplified Boundary Element Method for Kinematic Response of Single Piles in Two-Layer Soil
Journal of Applied Mathematics
title Simplified Boundary Element Method for Kinematic Response of Single Piles in Two-Layer Soil
title_full Simplified Boundary Element Method for Kinematic Response of Single Piles in Two-Layer Soil
title_fullStr Simplified Boundary Element Method for Kinematic Response of Single Piles in Two-Layer Soil
title_full_unstemmed Simplified Boundary Element Method for Kinematic Response of Single Piles in Two-Layer Soil
title_short Simplified Boundary Element Method for Kinematic Response of Single Piles in Two-Layer Soil
title_sort simplified boundary element method for kinematic response of single piles in two layer soil
url http://dx.doi.org/10.1155/2013/241482
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AT weidongguo simplifiedboundaryelementmethodforkinematicresponseofsinglepilesintwolayersoil