Vertical dynamic response of a rigid foundation embedded in a poroelastic soil layer

2009 ◽  
Vol 33 (11) ◽  
pp. 1363-1388 ◽  
Author(s):  
Y. Q. Cai ◽  
X. Q. Hu ◽  
C. J. Xu ◽  
Z. S. Hong
Keyword(s):  
Dynamic Response ◽  
Soil Layer ◽  
Rigid Foundation ◽  
Poroelastic Soil

Vertical dynamic response of a pile embedded in a poroelastic soil layer overlying rigid base

2020 ◽  
Author(s):  
Changjie Zheng ◽  
Shishun Gan ◽  
Lubao Luan ◽  
Xuanming Ding
Keyword(s):  
Dynamic Response ◽  
Soil Layer ◽  
Rigid Base ◽  
Poroelastic Soil

Dynamic response of a tunnel buried in a saturated poroelastic soil layer to a moving point load

2015 ◽  
Vol 77 ◽  
pp. 348-359 ◽  
Author(s):  
Zonghao Yuan ◽  
Changjie Xu ◽  
Yuanqiang Cai ◽  
Zhigang Cao
Keyword(s):  
Dynamic Response ◽  
Soil Layer ◽  
Point Load ◽  
Poroelastic Soil

Dynamic Response of a Rigid Foundation Subjected to a Distance Blast

2014 ◽  
pp. 143-151
Author(s):  
Hamid R. Hamidzadeh ◽  
Liming Dai ◽  
Reza N. Jazar
Keyword(s):  
Dynamic Response ◽  
Rigid Foundation

Lateral dynamic response of a pipe pile in saturated soil layer

2015 ◽  
Vol 40 (2) ◽  
pp. 159-184 ◽  
Author(s):  
Changjie Zheng ◽  
Hanlong Liu ◽  
Xuanming Ding
Keyword(s):  
Dynamic Response ◽  
Soil Layer ◽  
Saturated Soil ◽  
Pipe Pile

Dynamic Response of 3D Surface/Embedded Rigid Foundations of Arbitrary Shapes on Multi-Layered Soils in Time Domain

2019 ◽  
Vol 19 (09) ◽  
pp. 1950106 ◽  
Author(s):  
Zejun Han ◽  
Mi Zhou ◽  
Xiaowen Zhou ◽  
Linqing Yang
Keyword(s):  
Dynamic Response ◽  
Frequency Domain ◽  
Time Domain ◽  
Dynamic Stiffness ◽  
Dynamic Responses ◽  
Rigid Foundation ◽  
Layered Soils ◽  
Stiffness Matrices ◽  
The Time Domain ◽  
Arbitrary Shapes

Significant differences between the predicted and measured dynamic response of 3D rigid foundations on multi-layered soils in the time domain were identified due to the existence of uncertainties, which makes the issue a complicated one. In this study, a numerical method was developed to determine the dynamic responses of 3D rigid surfaces and embedded foundations of arbitrary shapes that are bonded to a multi-layered soil in the time domain. First, the dynamic stiffness matrices of the rigid foundations in the frequency domain are calculated via integral domain transformation. Secondly, a dynamic stiffness equation for rigid foundations in the time domain is established via the mixed variables formulation, which is based on the discrete dynamic stiffness matrices in the frequency domain. The proposed method can be applied to the treatment of systems with multiple degrees of freedom without losing the true information that concerns the coupling characteristics. Numerical examples are presented to demonstrate the accuracy of the proposed method for predicting the horizontal, vertical, rocking, and torsional vibrations. Further, a parametric study was carried out to provide insight into the dynamic behavior of the soil–foundation interaction (SFI) while considering soil nonhomogeneity. The results indicate that the elastic modulus of the soil has a significant impact on the dynamic responses of the rigid foundation. Finally, a numerical example of a rigid foundation resting on a six-layered, semi-infinite soil demonstrates that the proposed method can be used to deal with multi-layered media in the time domain in a relatively easy way.

scholarly journals Horizontal Vibration of a Large-Diameter Pipe Pile in Viscoelastic Soil

2013 ◽  
Vol 2013 ◽  
pp. 1-13 ◽  
Author(s):  
Changjie Zheng ◽  
Hanlong Liu ◽  
Xuanming Ding ◽  
Qiang Fu
Keyword(s):  
Dynamic Response ◽  
Separation Of Variables ◽  
Large Diameter ◽  
Soil Layer ◽  
Governing Equations ◽  
Layer Potential ◽  
Pipe Pile ◽  
Large Diameter Pipe ◽  
Diameter Pipe ◽  
Stiffness And Damping

An analytical solution is developed in this paper to investigate the horizontal dynamic response of a large-diameter pipe pile in viscoelastic soil layer. Potential functions are applied to decouple the governing equations of the outer and inner soil. The analytical solutions of the outer and inner soil are obtained by the method of separation of variables. The horizontal dynamic response and complex dynamic stiffnesses of the pipe pile are then obtained based on the continuity conditions between the pile and the outer and inner soil. To verify the validity of the solution, the derived solution in this study is compared with an existing solution for a solid pile. Numerical examples are presented to analyze the vibration characteristics of the pile and illustrate the effects of major parameters on the stiffness and damping properties.

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