Research on Bearing Characteristics of Grid Composite Foundation Based on Silt Solidification

Based on ABAQUS finite element analysis software simulation, the finite element model for dynamic analysis of rigid pile composite foundation and superstructure interaction system is established, which selects the two kinds of models, by simulating the soil dynamic constitutive model, selecting appropriate artificial boundary.The influence of rigid pile composite foundation on balance and imbalance of varying rigidity is analyzed under seismic loads. The result shows that the maximum bending moment and the horizontal displacement of the long pile is much greater than that of the short pile under seismic loads, the long pile of bending moment is larger in the position of stiffness change. By constrast, under the same economic condition, the aseismic performance of of rigid pile composite foundation on balance of varying rigidity is better than that of rigid pile composite foundation on imbalance of varying rigidity.

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Application Research on Composite Foundation of Rammed Soil-Cement Piles Applied in the Da-Guang Expressway from Gu'an to Shenzhou

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.740.655 ◽

2013 ◽

Vol 740 ◽

pp. 655-658

Author(s):

Huan Sheng Mu ◽

Ling Gao

Keyword(s):

Soft Soil ◽

Composite Foundation ◽

Application Research ◽

Action Mechanism ◽

Foundation Design ◽

Soil Cement ◽

Soil Foundation ◽

Soft Soil Foundation ◽

Cement Soil ◽

Capacity Characteristic

Through the practice of tamped cement soil pile in treatment of soft soil foundation in Guan to Shenzhou section of Daqing-Guangzhou Expressway, the author expounds the action mechanism of rammed soil cement pile, composite foundation design points and calculation method of bearing capacity characteristic value.

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Impacts of Different Pile Parameters on Stress and Settlement of Composite Foundation

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.90-93.387 ◽

2011 ◽

Vol 90-93 ◽

pp. 387-392

Author(s):

Ying Cui ◽

Jun Hai Zhao ◽

Shan Shan Sun

Keyword(s):

Storage Tank ◽

Yield Criterion ◽

Composite Foundation ◽

Engineering Practice ◽

Foundation Design ◽

Fem Model ◽

Oil Storage ◽

Oil Storage Tank ◽

The Status ◽

Important Significance

The composite foundation fully takes the carrying capacity of pile and soil into account, which decreases the settlement of oil storage tank foundation and differential settlement of oil storage tank bottom apparently. Analyzing the changes of stress and settlement under different conditions and optimizing the parameters of pile have important significance in engineering practice. In this paper, with an actual project of oil storage tank for background, basing on the Drucker-Prager yield criterion, the FEM model of composite foundation has been carried out by using ANSYS procedure. And with simulating the status of composite foundation under the working load, the project properties of composite foundation are investigated. Further more, analysis on the impacts of different pile parameters on stress and settlement of composite foundation have been carried out. In the end, the optimization scheme of composite foundation design has been proposed.

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The analysis of composite foundation with compound pile to resist soil liquefaction

2011 International Conference on Electric Technology and Civil Engineering (ICETCE) ◽

10.1109/icetce.2011.5774235 ◽

2011 ◽

Author(s):

Feng Yuqin ◽

Wang Yinghao

Keyword(s):

Soil Liquefaction ◽

Composite Foundation

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The Settlement Analysis of the Cement Fly-Ash Gravel Pile Composite Foundation of Baotou

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.580-583.518 ◽

2014 ◽

Vol 580-583 ◽

pp. 518-523

Author(s):

Juan Li ◽

Yao Xu ◽

Jun Yin

Keyword(s):

Fly Ash ◽

Composite Foundation ◽

Settlement Calculation ◽

Practical Engineering ◽

Cfg Pile Composite Foundation ◽

Modified Formula ◽

Gravel Pile ◽

Final Settlement ◽

Settlement Analysis ◽

Cfg Pile

This paper analyzes the causes of larger differences of final settlement calculated value of cement fly-ash gravel pile (CFG pile) composite foundation of Baotou with actual observed result of it. On the basis of analysis on a number of practical engineering data of Baotou, we modify the settlement formula of the CFG pile composite foundation and gain the modified coefficient applied to the settlement calculation of the CFG pile composite foundation of Baotou. The modified formula and coefficient proposed in this paper have a positive effect on the accurate settlement calculation of puting forward a more accurate correction formula and coefficient of the calculation of the CFG pile composite foundation of Baotou.

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