| Title |
Investigation of Strain Behaviour around the Tip of Model Pile - Comparison between Laboratory Model Test and Numerical Analysis - |
| Authors |
이용주(Lee, Yong Joo) ; 이정민(Lee, Jung-Min) |
| DOI |
https://doi.org/10.12652/Ksce.2012.32.4C.159 |
| Keywords |
실내 모형말뚝 재하실험;유한요소해석;경계면 요소;최대전단변형률;유한요소망 laboratory model pile-load test;finite element analysis;interface element;maximum shear strain;finite element mesh |
| Abstract |
In this study, laboratory model pile-load test and finite element analysis were carried out to compare and analyze the strain behaviour around the model pile tip. In order to simulate the pile load, both the LCM(load control method)and DCM(displacement control method) were introduced to determine which one is appropriate for the FE simulation. In contrast to the previous simulation method, two interface elements around the model pile were used to consider the slip effect in the finite element analysis and its results were compared to the model test. Through this study it was found that the degree of non-associated flow was a dominant factor in terms of numerical solution convergence. In addition, an improved FE mesh was required to obtain the symmetric distribution of the maximum shear strain contour. |