Evaluation of Dynamic Experiments on Pile Group
Publication: Journal of Geotechnical Engineering
Volume 110, Issue 6
Abstract
Dynamic experiments with a large group of small closely spaced piles were conducted in the field. The results of the experiments are compared with theoretical predictions made for vertical and horizontal response on the bases of different approaches accounting for the group effects, i.e., pile‐soil‐pile interaction. The theoretical approaches employed include static interaction factors, dynamic interaction factors, and complete dynamic analysis, as well as direct static analysis and the equivalent pier. The comparison with the experiments indicates that dynamic analytical techniques are able to predict the main features of dynamic behavior of pile groups for small strains and that the interaction effects are very significant. The omission of pile‐soil‐pile interaction can make the analysis of pile groups quite unrealistic.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Butterfield, R., and Banerjee, P. K., “The Elastic Analysis of Compressible Piles and Pile Groups,” Geotechnique, Vol. 21, 1971, pp. 43–60.
2.
Butterfield, R., and Douglas, R. A., “Flexibility Coefficients for Design of Piles and Pile Groups,” Technical Notes 108, Construction Industry Research and Information Association, 6 Storey's Gate, London SW1P 3AU.
3.
El‐Sharnouby, B., and Novak, M., “Dynamic Experiments with Group of Piles,” Journal of Geotechnical Engineering, ASCE, Vol. 110, No. 6, June, 1984, pp. 719–737.
4.
Kaynia, A. M., and Kausel, F., “Dynamic Behavior of Pile Groups,” 2nd International Conference on Numerical Methods in Offshore Piling, Austin, Tex., 1982, pp. 509–532.
5.
Nogami, T., and Novak, M., “Soil‐Pile Interaction in Vertical Vibration,” Journal of Earthquake Engineering and Structural Dynamics, Vol. 4, 1976, pp. 277–293.
6.
Novak, M., “Data Reduction from Nonlinear Response Curves,” Journal of the Engineering Mechanics Division, ASCE, No. EM4, Aug., 1971.
7.
Novak, M., “Dynamic Stiffness and Damping of Piles,” Canadian Geotechnical Journal, Vol. 11, 1974, pp. 574–598.
8.
Novak, M., “Vertical Vibration of Floating Piles,” Journal of the Engineering Mechanics Division, ASCE, Vol. 103, No. EM1, Feb., 1977, pp. 153–168.
9.
Novak, M., “Soil‐Pile Interaction under Dynamic Loads,” Proceedings of International Symposium on Numerical Methods in Off‐Shore Piling, London, England, May, 1979, pp. 41–50.
10.
Novak, M., and Aboul‐Ella, F., “Impedance Functions of Piles in Layered Media,” Journal of the Engineering Mechanics Division, ASCE, Vol. 104, No. EM3, Proc. Paper 13847, June, 1978, pp. 643–661.
11.
Novak, M., and Aboul‐Ella, F., “Stiffness and Damping of Piles in Layered Media,” Proceedings, Earthquake Engineering and Soil Dynamics, ASCE Specialty Conference, Pasadena, Calif., June 19–21, 1978, pp, 704–719.
12.
Novak, M., Aboul‐Ella, F., and Sheta, M., “PILAY2: A Computer Program for Calculation of Stiffness and Damping of Piles in Layered Media,” Systems, Analysis, Control and Design Activity (SACDA), The Univ. of Western Ontario, London, Canada, 1981, p. 84.
13.
Novak, M., and El‐Shamouby, B., “Stiffness and Damping Constants of Single Piles,” Journal of Geotechnical Engineering, ASCE, July, 1983.
14.
Novak, M., and Howell, J., “Dynamic Response of Pile Foundation in Torsion,” Journal of the Geotechnical Engineering Division, ASCE, Vol. 104, No. GT5, Proc. Paper 13767, May, 1978, pp. 535–553.
15.
Novak, M., and Sheta, M., “Approximate Approach to Contact Effects of Piles,” Dynamic Response of Pile Foundations: Analytical Aspects, ASCE, Hollywood, Fla., Oct. 30, 1980, pp. 53–79.
16.
Novak, M., and Sheta, M., “Dynamic Response of Piles and Pile Group,” 2nd International Conference on Numerical Methods in Off‐Shore Piling, Austin, Tex., Apr., 1982.
17.
Poulos, H. G., “Behavior of Laterally Loaded Piles. II—Pile Groups,” Journal of the Soil Mechanics Division, ASCE, Vol. 97, No. SM5, 1971, pp. 733–751.
18.
Poulos, H. G., “Lateral Load Deflection Prediction for Pile Groups,” Journal of the Geotechnical Engineering Division, ASCE, No. GT1, 1975, pp. 19–34.
19.
Poulos, H. G., “Groups Factors for Pile‐Deflection Estimation,” Journal of the Geotechnical Engineering Division, ASCE, No. GT12, 1979, pp. 1489–1509.
20.
Poulos, H. G., and Davis, E. H., Pile Foundation Analysis and Design, John Wiley & Sons, 1980, p. 397.
21.
Ricardo, D., et al., “Horizontal Stiffness and Damping of Single Piles,” Journal of the Geotechnical Engineering Division, ASCE, Vol. 108, No. GT3, Mar., 1982, pp. 439–459.
22.
Richart, F. E., Hall, J. R., and Woods, R. D., Vibrations of Soils and Foundations, Prentice‐Hall, Inc., 1970, p. 414.
23.
Sheta, M., and Novak, M., “Vertical Vibration of Pile Groups,” Journal of the Geotechnical Engineering Division, ASCE, Vol. 108, No. GT4, Apr., 1982, pp. 570–590.
24.
Trobojevic, V. M., et al., “Pile‐Soil‐Pile Interaction Analysis for Pile Groups,” 6th SMIRT, Paris, 1981.
25.
Waas, G., and Hartmann, H. G., “Pile Foundations Subjected to Dynamic Horizontal Loads,” European Simulation Meeting, “Modelling and Simulating of Large Scale Structural Systems,” Capri, Italy, Sept., 1981, p. 17. Also SMIRT, Paris, 1981.
26.
Wolf, J. P., and Von Arx, G. A., “Impedance Functions of a Group of Vertical Piles,” Proceedings, ASCE Specialty Conference on Earthquake Engineering and Soil Dynamics, Pasadena, Calif., 1978, pp. 1024–1041.
27.
El‐Sharnouby, B., “Static and Dynamic Behaviour of Pile Groups,” thesis presented to the University of Western Ontario, at London, Canada, in 1984, in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
28.
El‐Sharnouby, B., and Novak, M., “Vertical and Rocking Response of Pile Groups to Static and Low Frequency Loading,” Research Report, Geot‐3‐84, Faculty of Engineering Science, University of Western Ontario, London, Ontario, Jan., 1984, p. 32.
Information & Authors
Information
Published In
Copyright
Copyright © 1984 ASCE.
History
Published online: Jun 1, 1984
Published in print: Jun 1984
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.