Behavior of Stone Columns Based on Experimental and FEM Analysis
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Volume 133, Issue 4
Abstract
A detailed experimental study on behavior of single column and group of seven columns is carried out by varying parameters like spacing between the columns, shear strength of soft clay, and loading condition. Laboratory tests are carried out on a column of diameter surrounded by soft clay of different consistency. The tests are carried out either with an entire equivalent area loaded to estimate the stiffness of improved ground or only a column loaded to estimate the limiting axial capacity. During the group experiments, the actual stress on column and clay were measured by fixing pressure cells in the loading plate. Finite-element analyses have also been performed using 15-noded triangular elements with the software package PLAXIS. A drained analysis was carried out using Mohr-Coulomb’s criterion for soft clay, stones, and sand. The numerical results from the FEM are compared with the experimental results which showed good agreement between the results. Columns arranged with spacings more than 3 times the diameter of the column does not give any significant improvement. Based on the results, design charts are developed and a design procedure is suggested.
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References
Abhijit, S., and Das, S. C. (2000). “Interaction analysis of stone column groups in foundations.” Proc., Indian Geotech. Conf., Bombay,India, 279–284.
Aboshi, H., Ichimoto, E., Harada, K., and Emoki, M. (1979). “The composer—A method to improve the characteristics of soft clays by inclusion of large diameter sand columns.” Proc., Int. Conf. on Soil Reinforcement., E.N.P.C., 1, Paris 211–216.
Alamgir, M., Miura, N., Poorooshasb, H. B., and Madhav, M. R. (1996). “Deformation analysis of soft ground reinforced by columnar inclusions.” Comput. Geotech., 18(4), 267–290.
Atkinson, J. H. (1993). The mechanics of soils—An introduction to critical state soil mechanics, 3rd Ed., McGraw-Hill, London.
Balaam, N. P., Poulos, H. G., and Brown, P. T. (1978). “Settlement analysis of soft clays reinforced with granular piles.” Proc., 5th Asian Conf. on Soil Engineering, Bangkok, Thailand, 81–92.
Bowles, J. E. (1988). Foundation analysis and design, 5th Ed., McGraw-Hill International Editions, Singapore.
Datye, K. R. (1982). “Settlement and bearing capacity of foundation system with stone columns.” Proc., Symp. on Recent Developments in Ground Improvement Techniques, Bangkok, Thailand, 85–101.
Goughnour, R. R. (1983). “Settlement of vertically loaded stone columns in soft ground.” Proc., 8th European Conf. on Soil Mechanics, and Foundations Engineering, Helsinki, Finland, 1, 235–240.
Greenwood, D. A. (1970). “Mechanical improvement of soils below ground surfaces.” Proc., Ground Engineering Conf., Institution of Civil Engineers, London, 11–22.
Han, J., and Ye, S. L. (1992). “Settlement analysis of buildings on the soft clays stabilized by stone columns.” Proc., Int. Conf. on Soil Improvement and Pile Found., 118, 446–451.
Han, J., and Ye, S. L. (2001). “Simplified method for consolidation rate of stone column reinforced foundation.” J. Geotech. Geoenviron. Eng., 127(7), 597–603.
Hughes, J. M. O., and Withers, N. J. (1974). “Reinforcing of soft cohesive soils with stone columns.” Ground Eng., 7(3), 42–49.
Hughes, J. M. O., Withers, N. J., and Greenwood, D. A. (1976). “A field trial of reinforcing effect of stone column in soil.” Proc., Ground Treatment by Deep Compaction, Institution of Civil Engineers, London, 32–44.
Indian Standards (IS). (2003). “Indian standard code of practice for design and construction for ground improvement-guidelines. Part 1: Stone columns.” IS 15284 (Part 1), New Delhi, India.
Jellali, B., Bouassida, M., and De Buhan, P. (2005). “A homogenization method for estimating the bearing capacity of soils reinforced by stone columns.” Int. J. Numer. Analyt. Meth. Geomech., 29(10), 989–1004.
Madhav, M. R., and Vitkar, P. P. (1978). “Strip footing on weak clay stabilized with a granular trench or pile.” Can. Geotech. J., 15(4), 605–609.
McKelvey, D., Sivakumar, V., Bell, A., and Graham, J. (2004). “Modeling vibrated stone columns on soft clay.” Geotech. Eng., 157(GE3), 137–149.
Mitchell, J. K., and Huber, T. R. (1985) “Performance of a stone column foundation.” J. Geotech. Engrg., 111(2), 205–223.
Mitra, S., and Chattopadhyay, B. C. (1999) “Stone columns and design limitations.” Proc., Indian Geotech. Conf., Calcutta, India, 201–205.
Narasimha Rao, S., Madhiyan, M., and Prasad, Y. V. S. N. (1992). “Influence of bearing area on the behavior of stone columns.” Proc., Indian Geotech. Conf., Calcutta, India, 235–237.
Priebe, H. J. (1995). “The design of vibro replacement.” Ground Eng., 28(12), 31–37.
Saha, S., Santhanu, S., and Roy, A. (2000). “Analysis of stone column in soft ground.” Proc., Indian Geotech. Conf., Bombay, India, 297–300.
Sathish, S., Yadav, O. P., and Deepak, M. (1997). “Soft ground improvement using stone columns—A field trial.” Proc., Indian Geotech. Conf., Vadodara, India, 311–314.
Shahu, J. T., Madhav, M. R., and Hayashi, S. (2000). “Analysis of soft ground—Granular pile-granular mat system.” Comput. Geotech., 27(1), 45–62.
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Published In
Journal of Geotechnical and Geoenvironmental Engineering
Volume 133 • Issue 4 • April 2007
Pages: 405 - 415
Copyright
© 2007 ASCE.
History
Accepted: Sep 11, 2006
Received: Nov 22, 2006
Published online: Apr 1, 2007
Published in print: Apr 2007
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