Results 1 to 10 of about 18,792 (221)
Study on longitudinal nonlinear deformation of adjacent existing tunnels induced by deep foundation excavation [PDF]
Scientific ReportsThe simplified calculation methods for predicting the longitudinal deformation of neighboring existing tunnels caused by deep foundation excavation in engineering practice all use linear foundation model to interact with tunnel structure, and less use of
Honghua Zhao, Yutao Song
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Free Vibration and Buckling Analyses of Nanobeam Embedded in Pasternak Foundation [PDF]
Mechanics of Advanced Composite Structures, 2023 In this paper, free transverse vibration and buckling analyses of a nanobeam are presented by coupling the Euler-Bernoulli beam (EBT) theory and Eringen’s nonlocal elasticity theory. The nanobeam is embedded in the Pasternak foundation. Hamilton’s energy
Yajuvindra Kumar, Imran Ali
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Investigation of deformation of existing tunnel due to above excavation unloading considering tunnel lateral response [PDF]
Scientific ReportsThe safety of underlying metro tunnels is significantly compromised when the excavation of the overlying foundation pit is not properly conducted. Currently, research on the longitudinal deformation of tunnels induced by upper excavation typically relies
Libo Xu +3 more
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Bending and vibration behavior of functionally graded piezoelectric nanobeams considering dynamic flexoelectric and surface effects [PDF]
Scientific ReportsThis paper develops a more comprehensive theoretical model for functionally graded material (FGM) piezoelectric nanobeams. The model incorporates a Winkler–Pasternak linear elastic foundation and fully accounts for the effects of dynamic flexoelectric ...
Peng Wang +3 more
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Analytical solution for deformation of an existing tunnel induced by shield tunnelling overcrossing in complex strata [PDF]
Scientific ReportsThis study investigates the influence of new tunnel construction which traverses above existing shield tunnels on the vertical displacement behavior in complex strata. Through the introduction of state vectors for soil layers, the displacement and stress
Kan Huang +6 more
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DYNAMIC STABILITY OF A CRACKED PIPE CONVEYING FLUID AND RESTING ON A PASTERNAK ELASTIC FOUNDATION [PDF]
Scientific Journal of Silesian University of Technology. Series Transport, 2022 Pipeline transport is used worldwide in many sectors of the economy. Its main advantages are continuity of transport, large transportation volumes, small energy consumption, safety, reliability and high environmental benefits.
Dimitar LOLOV, Svetlana LILKOVA-MARKOVA
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Forces in Mechanics, 2023 This study aims at analyzing the effect of variable foundation parameters on the natural frequencies of a prestressed tapered Rayleigh beam having general elastically restrained ends.
Olanrewaju T. Olotu +2 more
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Defence Technology, 2023 This paper uses isogeometric analysis (IGA) based on higher-order shear deformation theory (HSDT) to study the dynamic response of bio-inspired helicoid laminated composite (B-iHLC) plates resting on Pasternak foundation (PF) excited by explosive loading.
Ngoc-Tu Do, Quoc-Hoa Pham
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Thermoelastic Vibrations of Nonlocal Nanobeams Resting on a Pasternak Foundation via DPL Model [PDF]
Journal of Applied and Computational Mechanics, 2021 The present work introduces the thermoelastic vibrations of nonlocal nanobeams resting on a two-parameter foundation. The governing equations are formulated for linear Winkler–Pasternak foundation type based on the generalized dual-phase-lag heat ...
Mohamed E. Nasr +3 more
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Rock and Soil Mechanics, 2022 As a direct retaining structure in the process of foundation pit excavation, the internal force and deformation of pile under horizontal load have great influence on the safety and economy of foundation pit engineering. In order to calculate the internal
ZHU Yan-peng +5 more
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