Numerical Analysis of the CFG Composite Foundation's Mechanical Properties Influenced by Lateral Soil Movement due to Heaped Loads

Abstract:

The subject uses finite element analysis method to study on mechanical properties of the composite foundation under lateral soil movement due to heaped loads. There are mainly includes the following aspects of work content in this research thesis: Through the use of finite element analysis software to establish a three-dimensional finite element analysis model, research and analysis of the various factors, such as the size and the operating range of the heap load, the self-weight of the building, the compression modulus of the soil, the elastic modulus of the CFG piles, which under the lateral soil movement due to heaped loads, effect on mechanical properties of the CFG piles composite foundation. Researching the working characteristics of the CFG piles composite foundation, this is affected by the heap loads. And main conclusions are drawn as follows: the size and the operating range of the heap load, the compression modulus of the shallow soil layer are the main factors to affect the mechanical properties of the composite foundation that under lateral soil movement due to heaped loads. When the heaped load exists, the stress and deformation of the composite foundation occur mainly in the range of 0.4L ~ 0.6L (L is the length of the pile) below ground. At the same time, Analyzed and summarized the formulas for calculating stress and deformation of the CFG piles in the composite foundation that under the soil lateral displacement. Key words: heap loads; soil lateral displacement composite foundation; numerical analysis

• Periodical: Applied Mechanics and Materials (Volumes 501-504)
• Pages: 224-227
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.501-504.224
• Online since: January 2014
• Authors: Jing Sheng Qiao, Xiao Bo Zhao
• Keywords: Heap Loads, Numerical Analysis, Soil Lateral Displacement Composite Foundation

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