Numerical Simulation of Consolidation Settlement of Pervious Concrete Pile Composite Foundation under Road Embankment

2016 ◽  
Vol 16 (1) ◽  
Author(s):  
Jiong Zhang ◽  
Xinzhuang Cui ◽  
Dan Huang ◽  
Qing Jin ◽  
Junjie Lou ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Composite Foundation ◽  
Pervious Concrete ◽  
Concrete Pile ◽  
Consolidation Settlement

Numerical Simulation of Reinforcement Effect and Settlement of Concrete Pile Composite Foundation

2013 ◽  
Vol 779-780 ◽  
pp. 434-438
Author(s):  
Dao Fang Wang ◽  
Xue Qing Wang ◽  
Nan Tong Zhang ◽  
Yan Chen
Keyword(s):  
Numerical Simulation ◽  
Influence Factors ◽  
Simulation Method ◽  
Composite Foundation ◽  
Reinforcement Effect ◽  
Numerical Simulation Method ◽  
Concrete Pile

The differential and large settlement may have a great effect on the construction and maintenance of highway. Based on the study of concrete pile composite foundation, the effect of concrete pile composite foundation on reinforcement and influence factors of settlement are analyzed in the paper. The effects of pile modulus and embankment modulus on settlement with numerical simulation method are analyzed in the paper. The result of numerical simulation method is that the settlement of embankment may be reduced with the method of concrete pile composite foundation and pile modulus may have a great effect and embankment modulus may have some effect on the settlement of embankment.

Numerical Simulation on the Reinforcing Effect of New CFG Pile-Board Structure Composite Foundation

2011 ◽  
Vol 243-249 ◽  
pp. 2415-2418
Author(s):  
Ding Bang Zhang
Keyword(s):  
Numerical Simulation ◽  
High Speed ◽  
Composite Foundation ◽  
Board Structure ◽  
Treatment Technique ◽  
High Speed Railway ◽  
Concrete Pile ◽  
Soil Stress ◽  
Deformation Compatibility ◽  
Cfg Pile

The new CFG pile-board structure composite foundation is a ground treatment technique based on CFG pile foundation and pile-board structure composite foundation. It can make full use of the load distributing function of board, the bearing capacity and the deformation compatibility of soil between piles, by taking advantage of the pile-platform-soil interaction. A part of soft ground in a high-speed railway was taken as the engineering background and study object. The settlement controlling effect of common CFG pile ground and new CFG pile-board structure composite foundation were analyzed by finite element numerical method, and various factors to the effect on settlement-controlling were discussed. Pile-soil stress ratio of CFG pile and reinforced concrete pile were studied. Some useful conclusions of the numerical simulation of the new CFG pile-board structure composite foundation were obtained.

scholarly journals Model tests on pervious concrete pile and impervious concrete pile composite foundation

2020 ◽  
Vol 319 ◽  
pp. 06001
Author(s):  
Jun Cai ◽  
Guangyin Du ◽  
Han Xia ◽  
Changshen Sun
Keyword(s):  
Bearing Capacity ◽  
Model Test ◽  
High Strength ◽  
Composite Foundation ◽  
Pervious Concrete ◽  
Excess Pore Pressure ◽  
Soil Consolidation ◽  
Concrete Piles ◽  
Concrete Pile ◽  
Consolidation Rate

Taking the advantages of high permeability and high strength, pervious concrete piles is suitable for improving ground bearing capacity and reduce the post-construction settlement, so pervious concrete pile composite foundation is a new foundation treatment. As pervious concrete piles were designed to accelerate soil consolidation and improve the ground bearing capacity, so model test of pervious concrete piles were conducted to evaluate the consolidation effect. Pervious concrete with porosity 20%, 25%, 30% and 35% was designed to compare the strength and permeability, and the porosity of 30% was selected, so the pile was made for the model test. Compared with impervious concrete pile composite foundation, as the pervious pile shortens the drainage path, pervious concrete pile composite foundation can shorten the consolidation time by about 30.3% and significantly reduce the peak value of excess pore pressure. With the increase of load and consolidation rate of soil around the pile, the stress ratio of pervious concrete pile increase first, then decrease and tend to be flat.

Numerical Analysis of the Influence of Vertical Load on the Horizontal Bearing Capacity of Single Pile

2011 ◽  
Vol 374-377 ◽  
pp. 1947-1952 ◽  
Author(s):  
Zhao Yun Xiao ◽  
Guo Xun Zhang ◽  
Wei Xu ◽  
Zhong Ming Xue
Keyword(s):  
Numerical Simulation ◽  
Bearing Capacity ◽  
Pile Foundation ◽  
Sandy Soils ◽  
Single Pile ◽  
Horizontal Load ◽  
Clayey Soils ◽  
Vertical Load ◽  
Concrete Pile ◽  
Finite Element Numerical Simulation

It is a complicated progress of interaction between pile and soil when pile is under both vertical load and horizontal load. This paper analyzes the variation of stress, strain, deformation and deflection of the pile body by finite element numerical simulation of single bored concrete pile under vertical load together with horizontal load. Based on the existing research results, conclusions could be that the vertical load can increase horizontal bearing capacity of the pile in sandy soils, but horizontal bearing capacity of the pile in clayey soils is more complicated. Hope that the simulation can provide some references for the design of pile foundation.

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