Browse > Article
http://dx.doi.org/10.7843/kgs.2012.28.4.67

Development of Three-dimensional Approximate Analysis Method for Piled Raft Foundations  

Cho, Jae-Yeon (Dept. of Civil Engineering, Yonsei Univ.)
Jeong, Sang-Seom (Dept. of Civil Engineering, Yonsei Univ.)
Publication Information
Journal of the Korean Geotechnical Society / v.28, no.4, 2012 , pp. 67-78 More about this Journal
Abstract
A three-dimensional approximate computer-based method, YSPR (Yonsei Piled Raft), was developed for analysis of behavior of piled raft foundations. The raft was modeled as a flat shell element having 6 degrees of freedom at each node and the pile was modeled as a beam-column element. The behaviors of pile head and soil were controlled by using $6{\times}6$ stiffness matrix. To model the non-linear behavior, the soil-structure interaction between soil and pile was modeled by using nonlinear load-transfer curves (t-z, q-z and p-y curves). Comparison with previous model and FEM analysis showed that YSPR gave similar load-displacement behaviors. Comparison with field measurement also indicated that YSPR gave a reasonable result. It was concluded that YSPR could be effectively used in analysis and design of piled raft foundations.
Keywords
Approximate computer based method; Nonlinear load-transfer curves; Piled raft foundations; Soil-Structure Interaction;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 Poulos, H. G. (1991), "Analysis of piled strip foundations," Proceedings of Conference on computer methods and advances in geomechanics, Rotterdam: Balkema, pp.183-191.
2 Poulos, H, G. (1979), "Group factors for pile-deflection estimation", J. Geotech. Engrg., ASCE, Vol.105, No.12, pp.1489-1509.
3 Poulos, H, G. (2001), "Piled raft foundations: design and applications", Geotechnique, 51, No.2, pp.95-113.   DOI
4 Poulos, H. G. (1994), "An approximate numerical analysis of pile-raft interaction," International Journal for Numerical and Analytical Methods in Geomechanics, London, Vol.18, No.2, pp.73-92.   DOI   ScienceOn
5 Randolph, M. F. (1983), "Design of piled foundations," Research Report Soils TR143. Cambridge: Cambridge University Engineering Department.
6 Randolph, M. F. (1994), "Design Methods for pile groups and piled rafts", Proceedings of 13th ICSMFE, New Delhi, India, Vol.5, pp.61-82.
7 Reese L. C., O'Neill M. W., Smith R. E. (1970) "Generalized analysis of pile f oundations", Journal of the Soil mechanics and foundations division, ASCE, 96(1), pp.235-250.
8 Reul, O. and Randolph, M.F. (2003), "Piled rafts in overconsolidated clay-Comparison of in-situ measurements and numerical analyses," Geotechnique, Vol.53, No.3, pp.301-315.   DOI   ScienceOn
9 de Sanctis, L. and Mandolini, A. (2003), "On the ultimate vertical load of piled rafts on the soft clay soils", Proceedings of 4th International Geotechnical Seminar on Deep Foundation on Bored and Auger Piles, Ghent, Millpress, Rotterdam, pp.379-386.
10 Hain, S. J. & Lee, I. K. (1978), "The analysis of flexible raft-pile systems," Geotechnique, Vol.28, No.1, pp.65-83.   DOI   ScienceOn
11 Sommer, H. (1991), "Entwicklung der Hochhausgru¨ndungen in Frankfurt/Main Festkoll oquium 20 Jahre Grundbauinstitut" Prof. Dr. -Ing. H. Sommer und Partner, Germany, pp.47-62.
12 Wang, S. T., and Reese, L. C. (1993), "COM624P - Laterally loaded pile analysis for the microcomputer, ver. 2.0" FHWA-SA- 91-048, Springfield, VA.
13 Wang, A. (1996), "Three dimensional finite element analysis of pile groups and piled -raft", Ph.D. dissertation, University of Manchester, U.K.
14 Won, J. O., Jeong, S. S., Lee, J. H. and Jang, S. Y. (2006), "Nonlinear three- dimensional analysis of pile group supported columns considering pile cap flexibility", Computers & Geotechnics, Vol.33, pp.355-370.   DOI   ScienceOn
15 Zafir, Z. (2002), "Seismic Foundation Stiffness For Bridges", Deep Foundations 2002, pp.1421-1433.
16 Jeong, S. S., Lee, J. H. and Lee, C. J. (2004), "Slip effect at the pile-soil interface on dragload", Computers & Geotechnics, Vol.31, pp.115-126.   DOI   ScienceOn
17 Katzenbach, R. Arslan, U. and Moormann, C. (2000), "Piled raft foundations projects in Germany", Design applications of raft foundations, Hemsley, J. A. Editor, Thomas Telford, pp.323-392.
18 Katzenbach, R. Schmitt, A. and Turek, J. (2005), "Assessing settlement of high-rise s tructures by 3D simulations", Computer- Aided Civil and Infrastructure Engineering, 20, pp.221-229.   DOI   ScienceOn
19 Kitiyodom P, Matsumoto T. (2003), "A simplified analysis method for piled raft found ations in non-homogeneous soils", International Journal for Numerical and Analytical Methods in Geomechanics, 27, pp.85-109.   DOI   ScienceOn
20 Kuwabara, F. (1989), "An elastic analysis for piled raft foundations in a homogeneous soil", Soils and Foundations. Vol.28, No.1, pp.82-92.
21 Lee, J. H., Kim, Y. H., and Jeong, S. S. (2010), "Three-dimensional analysis of bearing behavior of piled raft on soft clay", Computers & Geotechnics, Vol.37, pp.103-114.   DOI   ScienceOn
22 Lee, I. K. (1993), "Analysis and performance of raft and raft-pile foundations in a homogeneous soil", Proceedings of 3rd International Conference on Case History in Geotechnical Engineering, St Louis (also Research Report R133, ADFA, University of New South Wales, Australia).
23 이승훈, 박영호, 송명준 (2007), "말뚝지지 전면기초의 설계를 위한 실용적 해석방법에 관한 연구", 한국지반공학회 논문집, 제 23권, 제12호, pp.83-94.   과학기술학회마을
24 O'Neill, M. W. and Dunnavant, T. W.(1984), "A Study of Effect of Scale, Velocity, and Cyclic Degradability on Laterally Loaded Single Piles in Overconsolidated Clay.", Rep. No. UHCE 84-7, Dept. of Civil Engineering, Univ. of Houston, Houston, TX.
25 Zhang, G. M., Lee, I. K. & Zhao, X. H. (1991), "Interactive analysis of behaviour of raft-pile foundations", Proceedings of Geo-Coast' 91, Yokohama2, pp.759-764.
26 Zhang, H. H. and Small, J.C. (2000), "Analysis of axially and laterally loaded pile groups embedded in layered soils," Proceedings of 8th Australia NewZealand Conf. on Geomechanics, Hobart, Vol.1, 475-483.
27 Mandolini, A., Russo, G., Viggiani, C. (2005), "Piled foundations: Experimental I nvestigations, analysis and design", State-of-the-Art Rep. Proc., 16th ICSMGE, Osaka, Japan, Vol.1, pp.177-213.
28 Ottaviani, M. (1975), "Three-Dimensional Finite element Analysis of Vertically loaded pile groups", Geotechnique, 25, pp.159-174.   DOI   ScienceOn
29 이진형, 정상섬 (2007), "연약지반에 시공된 Piled Raft 기초의 3차원 거동 분석", 한국지반공학회 논문집, 제23권, 제5호, pp. 63-75.   과학기술학회마을
30 이완훈 (1995), 면내 회전자유도를 가진 변이 평면 쉘요소의 개발과 이를 적용한 적응적 체눈 세분화, 박사학위논문, 한국과학기술원 토목공학과.
31 원진오, 정상섬(2005), "교량 말뚝기초의 캡강성을 고려한 비선형 3차원 해석", 한국지반공학회 논문집, 제21권, 제6호, pp.19-30.   과학기술학회마을
32 최창근, 이필승, 박용명 (1999), "면내회전자유도를 가지는 4절점 비적합 평면쉘요소의 개발", 대한토목학회 논문집, 제19권 제I-5호, pp.663-673.   과학기술학회마을
33 ABAQUS: User's manual. version 6.10. Hibbit, Karlsson & Sorensen, Pawtucket R. I, 2010.
34 Burland, J. B., Broms, B. B. and De Mello, V.F.B. (1977), "Behaviour of founadations and structures", Proceedings of 9th International Conference on Soil Mechanics and Foundation Engineering, Tokyo, Vol.2, pp.495-549.
35 Brown, P. T. and Weisner, T. J. (1975), "The behaviour of uniformly loaded piled strip footings", Soils and Foundations, Vol.15, No.4, pp.13-21.
36 Clancy, P., and Randolph, M. F. (1993), "An approximate analysis procedure for piled raft foundations", International Journal for Numerical and Analytical Methods in Geomechanics, London, Vol.17, No.12, pp.849-869.   DOI   ScienceOn