Research On The Reinforcement Of Soft Soil Application Of CFG Composite Foundation

CFG pile composite foundation is an economic and reliable foundation treatment technology. The composite ground has been widely used in engineering because it can enhance bearing capacity and control distortion of natural ground with relatively little cost. However, working mechanism and design idea of the CFG pile composite foundation is still far behind lag and it is needed to study much further.The paper is researched the theory study on the working mechanism of the CFG pile cmposite foundation, discussing through the the project example the affects factors of construction and load bearing performance, the main contents:1. The paper is summarized the development and research present situation of CFG pile composite foundation, pointed out the main problems of CFG pile composite foundation.2. CFG pile composite foundation of the action mechanism is analyzed and discussed on setting the reasonable thickness of cushion cours.3. Using the basic theory of finite element analysis, it is made a preliminary study on the characters of the CFG pile composite foundation reinforced zone, established the CFG pile composite foundation numerical model reasonably. According to the project, the paper is made a deeply research on the working characters of a single pile with under vertical load in the the CFG pile composite foundation.4. Using ANSYS finite element program established model of CFG pile composite foundation to study the effect of cushion thickness, cushion modulus, CFG pile length about the CFG pile composite foundation subsidence and the effects of pile-soil stress ratio. It is significant to design and construct on the CFG pile composite foundation engineer.Finally, the paper is drawed the related conclusion through the theory and the practice research, made the forecast to the next work direction about the CFG pile composite foundation.