| Title |
Efficiency of Pile Groups with Arrangement of Piles Using Numerical Analysis |
| Authors |
이기철(Lee, Kichoel) ; 신세희(Shin, Sehee) ; 김동욱(Kim, Dongwook) |
| DOI |
https://doi.org/10.12652/Ksce.2021.41.5.0523 |
| Keywords |
효율; 군말뚝; 배치; 수치해석; 마찰계수 Efficiency; Pile groups; Arrangement; Numerical analysis; Friction coefficient |
| Abstract |
In general, the foundation refers to a group pile with several single piles connected by an upper structure. However, when a load is
applied to pile groups, the range of stress applied to the ground is expanded and overlapped compared with the single pile, so the overall
bearing capacity may decrease. This reduction ratio of bearing capacity is referred to as the efficiency of pile groups. Therefore, in this
study, the soil composition, the arrangement and spacing of group piles, and the contact characteristics between the ground and piles were set as analysis variables, and the group pile efficiency and individual pile behavior were analyzed. As a result of the analysis, the efficiency of pile groups tends to converge or decrease when the friction coefficients are increased with ground type. Through this, the optimal efficiency of pile groups can be derived. In addition, through the analysis of individual piles, the load ratio of each pile was analyzed when an upper load was applied. In the case of piles located inside group piles, the load was relatively low, and this is
considered to have an influence on the internal ground. |