Numerical simulation of lateral bearing capacity of flexible micropile

作者：Chen Zheng^*; Mei Ling; Mei Guo Xiong

来源：Yantu Lixue/rock and Soil Mechanics, 2011, 32(7): 2219-2224.

• Finite element numerical simulation
• Finite element software ABAQUS
• Friction angles
• Horizontal loads
• In-situ
• Lateral bearing capacity
• Lateral loads
• Load transfer behavior
• Measured results
• Mechanical behavior
• Micropiles
• Pile length
• Reasonable value
• Simulation parameters
• Stress characteristics

It is very difficult to measure the lateral load on the micropile in-situ, so the load transfer behavior and the stress characteristics are incomplete; so that numerical simulation of the flexible micropile (l/d more then 50 in general) with finite element software ABAQUS is made. The numerical analysis results are consistent with field measured results, so as to prove that the simulation parameters are effective and correct. They can reflect the field actual situation perfectly. Using finite element numerical simulation, the mechanical behavior of micropiles subjected to horizontal load, and parameters influencing on the lateral bearing capacity of micropile are discussed. Finally, some reasonable values of the pile length, pile diameter, elastic modulus and so on, are given. It is shown that the more larger diameter and the larger friction angle of soil, the more larger lateral bearing capacity of micropiles.

• 单位
  南京大学