Dynamic Simulation Analysis of the Vibratory Sinking Piling System Based on AMESim

2013 ◽  
Vol 683 ◽  
pp. 704-707
Author(s):  
Xiao Peng Li ◽  
Guang Hui Zhao ◽  
Xing Ju ◽  
Hao Tian Yang ◽  
Ya Min Liang
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Excitation Frequency ◽  
Frictional Resistance ◽  
Soil Condition ◽  
Building Construction ◽  
Pile Driving ◽  
Work Efficiency ◽  
Soil System ◽  
Tip Resistance

The dynamic model of pile-soil system has been established, the numerical simulation has been made with AMESim, and the effect of excitation frequency and soil condition on vibration friction characteristics of pile-soil system has been studied in the process of pile driving. Comparing the curves of pile tip resistance and side frictional resistance on different parameters, the influence law of work efficiency has been obtained. With the work, the most efficient exciting frequencies can be obtained, that the efficiency of pile-soil system in civil building construction can be improved.

Numerical Simulation Analysis of Dynamic Parameters of the Vibratory Sinking Piling System

2012 ◽  
Vol 170-173 ◽  
pp. 661-665
Author(s):  
Xiao Peng Li ◽  
Xiao Chen Meng ◽  
Wei Wang ◽  
Mi Que Zhao
Keyword(s):  
Numerical Simulation ◽  
Kinetic Equation ◽  
Dynamic Optimization ◽  
Theoretical Basis ◽  
Analytic Solution ◽  
Simulation Analysis ◽  
Work Efficiency ◽  
Soil System ◽  
Mechanics Model ◽  
The Relationship

In the premise of mechanics model and the kinetic equation, the numerical simulation model of pile-soil system has been established with MATLAB, and the numerical analytic solution of kinetic equation has been got by fourth-order Runge-Kutta. And the relationship curves between the pile-soil interface’s friction and time, displacement, acceleration and velocity of the pile have been mainly studied when the exciting amplitude is 100kN, 200kN respectively. With the work, the exciting amplitude will be obtained. In this way, the friction of the pile-soil can be decreased and work efficiency can be improved; besides this paper can also provide a further theoretical basis of pile pressing machine's dynamic optimization.

Numerical Simulation Analysis of a New Pressured Multi-Branch Bored Pile

2011 ◽  
Vol 243-249 ◽  
pp. 3167-3171 ◽  
Author(s):  
Ming Yi Zhang ◽  
Hai Lei Kou ◽  
Wei Zhang
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Cost Effective ◽  
Vertical Load ◽  
Element Analysis ◽  
Bored Pile ◽  
Tip Resistance ◽  
Technology Focus ◽  
Lateral Friction ◽  
End Bearing Pile

Pressured multi-branch bored pile is a new pile on the basis of squeezed branch reaming pile improved, it is a new pile technology focus on many advantages of the static pile, driven cast-in-place pile, belled pile and multi-branch bored pile. Pressured multi-branch bored pile has high bearing capacity, small settlement, cost-effective advantages of better. Numerical simulation of pressured double-branch pile on the vertical compression with ANSYS finite element analysis software obtained the alternate variation of the lateral friction and tip resistance of pile under the vertical load. Many branch of pile constitute multi-pivot friction and end-bearing pile, the bearing branch bear mainly bear vertical load, above branch force greater than the following branch. It is proposed recommended value about the vertical critical spacing of branch and the level spacing of pressured branch pile.

LIFT AND DRAG CORRELATIONS FOR AN AIRFOIL ARRAY THROUGH NUMERICAL SIMULATION ANALYSIS.

2019 ◽  
Author(s):  
Luan Labigalini ◽  
Ricardo Salvo ◽  
Rafael Sene de Lima ◽  
Ismael Marchi Neto ◽  
Rodrigo Corrêa da Silva
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Lift And Drag

scholarly journals Calibration of Finn Model and UBCSAND Model for Simplified Liquefaction Analysis Procedures

2021 ◽  
Vol 11 (11) ◽  
pp. 5283
Author(s):  
Jui-Ching Chou ◽  
Hsueh-Tusng Yang ◽  
Der-Guey Lin
Keyword(s):  
Numerical Simulation ◽  
Constitutive Model ◽  
Structural Damage ◽  
Simulation Analysis ◽  
Constitutive Models ◽  
Soil Liquefaction ◽  
Analysis Procedure ◽  
Liquefaction Resistance ◽  
Simplified Procedure ◽  
Liquefaction Analysis

Soil-liquefaction-related hazards can damage structures or lead to an extensive loss of life and property. Therefore, the stability and safety of structures against soil liquefaction are essential for evaluation in earthquake design. In practice, the simplified liquefaction analysis procedure associated with numerical simulation analysis is the most used approach for evaluating the behavior of structures or the effectiveness of mitigation plans. First, the occurrence of soil liquefaction is evaluated using the simplified procedure. If soil liquefaction occurs, the resulting structural damage or the following mitigation plan is evaluated using the numerical simulation analysis. Rational and comparable evaluation results between the simplified liquefaction analysis procedure and the numerical simulation analysis are achieved by ensuring that the liquefaction constitutive model used in the numerical simulation has a consistent liquefaction resistance with the simplified liquefaction analysis procedure. In this study, two frequently used liquefaction constitutive models (Finn model and UBCSAND model) were calibrated by fitting the liquefaction triggering curves of most used simplified liquefaction analysis procedures (NCEER, HBF, JRA96, and T-Y procedures) in Taiwan via FLAC program. In addition, the responses of two calibrated models were compared and discussed to provide guidelines for selecting an appropriate liquefaction constitutive model in future projects.

Numerical Simulation on the Effect of Compound Roof Separation Position on Bolting Performance

2014 ◽  
Vol 953-954 ◽  
pp. 1638-1642
Author(s):  
Ai Qing Liu ◽  
Jian Zhang ◽  
Peng Cheng ◽  
Yu Hai Zhang
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Surrounding Rock ◽  
Cohesive Force ◽  
Roof Strata ◽  
Poor Stability ◽  
Key Parameter

Prestress is a key parameter in bolting, while the cohesive force of layers in the compound roof strata is low and prone to separation, causing the prestress proliferation very poor. With the method of numerical simulation analysis,the location of separation in compound roof to affect the performance of bolting support was researched. It is concluded the roof separation in the edge of anchorage zone, the prestress field superpose, but is away from the deep surrounding rock and shows poor stability,however the role of cable can make up for the defect of rockbolts support. It has been found the highly prestressed strength bolting system adapts to the compound roof.

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