Browse > Article
http://dx.doi.org/10.12652/Ksce.2021.41.5.0523

Efficiency of Pile Groups with Arrangement of Piles Using Numerical Analysis  

Lee, Kichoel (Incheon National University)
Shin, Sehee (Incheon National University)
Kim, Dongwook (Incheon National University)
Publication Information
KSCE Journal of Civil and Environmental Engineering Research / v.41, no.5, 2021 , pp. 523-531 More about this Journal
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.
Keywords
Efficiency; Pile groups; Arrangement; Numerical analysis; Friction coefficient;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
1 Teramoto, S., Niimura, T., Akutsu, T. and Kimura, M. (2018). "Evaluation of ultimate behavior of actual large-scale pile group foundation by in-situ lateral loading tests and numerical analysis." Soils and Foundations, Vol. 58, No. 4, pp. 819-837.   DOI
2 Ghasemzadeh, H., Tarzaban, M. and Hajitaheriha, M. M. (2018). "Numerical analysis of pile-soil-pile Interaction in pile groups with batter piles." Geotechnical and Geological Engineering, Vol. 36, No. 4, pp. 2189-2215.   DOI
3 Lee, C. J. (2009). "The Influence of reduction of vertical stress on the behaviour of piles subjected to negative skin friction." Journal of the Korean Society of Civil Engineers, KSCE, Vol. 29. No. 1C, pp. 33-39 (in Korean).
4 Han, F., Salgado, R., Prezzi, M. and Lim, J. H. (2019). "Axial resistance of nondisplacement pile groups in sand." Journal of Geotechnical and Geoenvironmental Engineering, Vol. 145, No. 7, 04019027.   DOI
5 Nowkandeh, M. J. and Choobbasti, A. J. (2021). "Numerical study of single helical piles and helical pile groups under compressive loading in cohesive and cohesionless soils." Bulletin of Engineering Geology and the Environment, pp. 1-23.
6 Bak, J. H., Lee, K. C, Choi, B. H. and Kim, D. W. (2018). "Analysis of helical pile behavior in sands varying helix pitch based on numerical analysis results." Journal of the Korean Geosynthetics Society, Vol. 17, No. 4, pp. 29-40 (in Korean).   DOI
7 Bolin, H. W. (1941). "The pile efficiency formula of the Uniform Building Code." Building Standards Monthly, Vol. 10, No. 1, pp. 4-5.
8 Bowels, J. E. (1996). Foundation analysis and design, The Mcgraw-Hill Companies, Singapore.
9 Franke, E. (1989). "Co-report to discussion, session 13: large-diameter piles." 12th International Conferences on Soil Mechanics and Foundation Engineering, Rio De Janeiro.
10 Kim, T. S. (2014). Contact analysis using Abaqus, BB Media, Seoul, Republic of Korea (In Korean).
11 Seiler, J. F. and Keeney, W. D. (1944). "The efficiency of piles in groups." Wood Preserving News, Vol. 22, No. 11, pp. 109-118.
12 Tomlinson, M. J. and Woodward, J. (2008). Pile design and construction, Taylor & Francis, Oxfordshire, U.K.
13 Wang, C., Liang, F. and Yu, X. (2017). "Experimental and numerical investigations on the performance of sacrificial piles in reducing local scour around pile groups." Natural Hazards, Vol. 85, No. 3, pp. 1417-1435.   DOI
14 O'Brien, A. S. (2012). Pile-group design, In ICE manual of geotechnical engineering, Thomas Telford Ltd., London, U.K.
15 Das, B. M. (2015). Principles of foundation engineering, Cengage learning, Boston, Massachusetts, U.S.
16 Deb, P. and Pal, D. S. K. (2016). "An experimental and numerical study on behaviour of single pile and group of piles in layered soils under vertical load." International Journal of Engineering Research & Technology, IJERT, Vol. 5, No. 3, pp. 200-208.   DOI
17 Gowthaman, S. and Nasvi, M. C. M. (2018). "Three-dimensional numerical simulation and validation of load-settlement behaviour of a pile group under compressive loading." Engineer, Vol. 51, No. 1, pp. 9-21.   DOI
18 Kim, S. H., Jeon, Y. J. and Lee, C. J. (2015). "A study on the effect of tunnelling to adjacent single piles and pile groups considering the transverse distance of pile tips from the tunnel." Journal of Korean Tunnelling and Underground Space Association, Vol. 17, No.6, pp. 637-652 (In Korean).   DOI
19 Pack, J. S. and Jeong, S. S. (2018). "Estimation of lateral dynamic p-multiplier of group pile using dynamic numerical analysis results." Journal of the Korean Society of Civil Engineers, KSCE, Vol. 38, No. 4, pp. 567-578.   DOI
20 SIMULIA. (2016). ABAQUS 6.16 Scripting User's Manual, SIMULIA, Maastricht, Netherlands.
21 Kim, S. H., Jeon, Y. J. and Lee, C. J. (2016). "A s tudy on the behaviour of single piles and pile groups in consolidating ground from coupled consolidation analyses." Journal of the Korean Geo-Environmental Society, Vol. 17, No. 7, pp. 15-25 (In Korean).   DOI
22 Moayedi, H., Nazir, R., Ghareh, S., Sobhanmanesh, A. and Tan, Y. C. (2018). "Performance analysis of a piled raft foundation system of varying pile lengths in controlling angular distortion." Soil Mechanics and Foundation Engineering, Vol. 55, No. 4, pp. 265-269.   DOI