A finite element benchmark study based on experimental modeling of vibratory pile driving in saturated sand

2019 ◽  
Vol 122 ◽  
pp. 248-260 ◽  
Author(s):  
Stylianos Chrisopoulos ◽  
Jakob Vogelsang
Keyword(s):  
Finite Element ◽  
Experimental Modeling ◽  
Pile Driving ◽  
Saturated Sand ◽  
Benchmark Study ◽  
Vibratory Pile Driving

Dynamic Simulation of the Pile-Soil Interaction in the Vibratory Pile Driving Process

2011 ◽  
Vol 250-253 ◽  
pp. 980-983
Author(s):  
Xiao Peng Li ◽  
Ze Liang Duan ◽  
Tao Li ◽  
Bang Chun Wen
Keyword(s):  
Finite Element ◽  
Dynamic Simulation ◽  
Dynamic Performance ◽  
Dynamic Contact ◽  
Exciting Force ◽  
Pile Driving ◽  
Soil System ◽  
Finite Element Software ◽  
Soil Dynamic ◽  
Vibratory Pile Driving

In the pile driving process, the soil dynamic performance and the dynamic contact on the interface are very complex. In order to analyze the interactions between the pile and soil, the simulation model of the pile-soil system is created by the finite element software. The numerical solution and the displacement curves of the pile are obtained based on suitable parameters of the pile-soil system and the D-P criterion. Then the amplitude and the frequency of the exciting force as well as the stiffness and the damping of the soil are changed to obtain the displacement curves of the pile. Through the comparisons between the curves, the influences on the pile driving process coming from the exciting force and other parameters are found out.

Finite-element analysis of multi-body contacts for pile driving using a hydraulic pile hammer

2011 ◽  
Vol 225 (5) ◽  
pp. 1153-1161 ◽  
Author(s):  
Y Guo ◽  
J P Hu ◽  
L Y Zhang
Keyword(s):  
Finite Element ◽  
Three Dimensional ◽  
Test Point ◽  
Pile Driving ◽  
Penalty Function Method ◽  
Three Dimensional Model ◽  
Element Analysis ◽  
Material Choice ◽  
Multi Body ◽  
The Impact

This article treats the pile driving as multi-body dynamic contacts. By using the penalty function method and three-dimensional model of finite-element method, the dynamic process of pile driving is acquired and a method for choosing the cushion material of the hydraulic pile hammer to improve driving efficiency is proposed. The process of pile driving in the real situation of an industrial experiment is simulated. The results of stress on test point are consistent with the test point. By analysing the stress distributed along the direction of pile radius and pile axis, the rule of the stress distribution on the pile is concluded. The rule for cushion material choice is obtained by comparing the influence for the impact stress with different elastic modulus ratio of the hammer cushion to the pile and the pile cushion to the pile.

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