Dynamic response of vertical vibration of pipe piles in soils with radial inhomogeneousity and viscous damping considering vertical wave effect - Details

Author：

Cui, Chun-Yi (Cui, Chun-Yi.) | Meng, Kun (Meng, Kun.) | Wu, Ya-Jun (Wu, Ya-Jun.) | Ma, Ke-Yan (Ma, Ke-Yan.) | Yang, Gang (Yang, Gang.)

Indexed by：

EI Scopus PKU CSCD

Abstract：

Based　on　the　three-dimensional　axisymmetric　model　for　the　surrounding　soils　with　viscous　damping,　a　simplified　mechanical　model　of　vertical　vibration　for　the　dynamic　interaction　of　pipe　piles　embedded　in　radially　inhomogeneous　viscoelastic　soils　is　proposed　accounting　for　the　vertical　wave　effect　of　surrounding　soils.　The　complex　stiffness　at　the　interfaces　between　soils　and　pipe　piles　is　derived　by　using　the　Laplace　transform　and　complex　stiffness　transfer　method.　And　the　analytical　solutions　for　dynamic　impedance　at　the　pile　head　are　obtained　by　using　the　pile-soil　compatibility　of　piles　and　radially　inhomogeneous　surrounding　soils.　Furthermore,　the　obtained　analytical　solution　for　dynamic　impedance　at　the　pile　head　is　also　reduced　to　verify　its　validity　by　the　comparison　with　the　existing　solutions.　Finally,　an　extensive　parametric　analysis　is　also　conducted　to　investigate　the　effects　of　the　pile　length,　inner　diameter,　construction　disturbance　intensity　and　range　on　the　dynamic　impedance　at　the　pile　head,　and　it　can　provide　reference　for　engineering　practice.　©　2018,　Editorial　Office　of　Chinese　Journal　of　Geotechnical　Engineering.　All　right　reserved.

Keyword：

Laplace transforms Soils Wave effects Damping Vibrations (mechanical) Piles Stiffness Geotechnical engineering

Author Community：

[ 1 ] [Cui, Chun-Yi]Department of Civil Engineering, Dalian Maritime University, Dalian; 116026, China
[ 2 ] [Cui, Chun-Yi]Key Laboratory of Urban Security and Disaster Engineering, Beijing University of Technology, Beijing; 100124, China
[ 3 ] [Meng, Kun]Department of Civil Engineering, Dalian Maritime University, Dalian; 116026, China
[ 4 ] [Wu, Ya-Jun]Department of Civil Engineering, Shanghai University, Shanghai; 200072, China
[ 5 ] [Ma, Ke-Yan]Department of Civil Engineering, Dalian Maritime University, Dalian; 116026, China
[ 6 ] [Yang, Gang]Department of Civil Engineering, Dalian Maritime University, Dalian; 116026, China

Reprint Author's Address：

[cui, chun-yi]key laboratory of urban security and disaster engineering, beijing university of technology, beijing; 100124, china;;[cui, chun-yi]department of civil engineering, dalian maritime university, dalian; 116026, china

Email：

cuichunyi@dlmu.edu.cn

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