Deformation Analysis of Geosynthetic-Encased Stone Column–Supported Embankment considering Radial Bulging
Publication: International Journal of Geomechanics
Volume 19, Issue 6
Abstract
This study presents an analytical solution for predicting the vertical settlement behavior of geosynthetic-encased stone columns (GESCs) and GESC-supported embankments, taking into account the radial bulging deformation of GESCs. The analysis is performed based on the deformation pattern of a GESC-reinforced foundation. The solution is obtained by enforcing compatibility between the settlements of the column and the soil for each element of the GESC-reinforced foundation. This method has been verified via a comparison with data from the literature. Parametric studies were conducted to investigate the influence of encasement stiffness, embankment fill height, and dilatancy angle on the behaviors of the GESC. The results indicate that the theoretical approaches proposed in this study are suitable for predicting the deformation of GESC-supported embankments. In GESC-reinforced foundation design, it is safer to rely on this predicted settlement when the dilatancy angle ψc is also considered.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The work was supported by the National Natural Science Foundation of China (51639002), the Fundamental Research Funds for the Central Universities (2017B699X14), and Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX17_0465).
References
Afshar, J. N., and M. Ghazavi. 2014. “Experimental studies on bearing capacity of geosynthetic reinforced stone columns.” Arabian J. Sci. Eng. 39 (3): 1559–1571. https://doi.org/10.1007/s13369-013-0709-8.
Alamgir, M., N. Miura, H. B. Poorooshasb, and M. R. Madhav. 1996. “Deformation analysis of soft ground reinforced by columnar inclusions.” Comput. Geotech. 18 (4): 267–290. https://doi.org/10.1016/0266-352X(95)00034-8.
Almeida, M., I. Hosseinpour, M. Riccio, and D. Alexiew. 2015. “Behavior of geotextile-encased granular columns supporting test embankment on soft deposit.” J. Geotech. Geoenviron. Eng. 141 (3): 0401416. https://doi.org/10.1061/(ASCE)GT.1943-5606.0001256.
Castro, J., and C. Sagaseta. 2011. “Deformation and consolidation around encased stone columns.” Geotext. Geomembr. 29 (3): 268–276. https://doi.org/10.1016/j.geotexmem.2010.12.001.
Deb, K., and S. R. Mohapatra. 2013. “Analysis of stone column-supported geosynthetic-reinforced embankment.” Appl. Math. Modell. 37 (5): 2943–2960. https://doi.org/10.1016/j.apm.2012.07.002.
Duan, Y., Y. Zhang, and D. Chan. 2012. “Theoretical elastoplastic analysis for foundations with geosynthetic-encased columns.” J. Zhejiang Univ. Sci. A 13 (7): 506–518. https://doi.org/10.1631/jzus.A1100334.
Han, J., and S. Ye. 2002. “A theoretical solution for consolidation rates of stone column-reinforced foundations accounting for smear and well resistance effects.” Int. J. Geomech. 2 (2): 135–151. https://doi.org/10.1061/(ASCE)1532-3641(2002)2:2(135).
Hosseinpour, I., M. S. S. Almeida, and M. Riccio. 2015. “Full-scale load test and finite-element analysis of soft ground improved by geotextile-encased granular columns.” Geosynth. Int. 22 (6): 428–438. https://doi.org/10.1680/jgein.15.00023.
Keykhosropur, L., A. Soroush, and R. Imam. 2012. “3D numerical analyses of geosynthetic encased stone columns.” Geotext. Geomembr. 35 (Dec): 61–68. https://doi.org/10.1016/j.geotexmem.2012.07.005.
Khabbazian, M., V. Kaliakin, and C. Meehan. 2009. “3D numerical analyses of geosynthetic encased stone columns.” Contemporary Topics in Ground Modification, Problem Soils, and Geo-Support, Geotechnical Special Publication No. 187, edited by M. Iskander, D. F. Laefer, and M. H. Hussein, 201–208. Reston, VA: ASCE.
Kong, G. Q., D. Wu, H. L. Liu, L. Laloui, X. H. Cheng, and X. Zhu. 2019. “Performance of a geothermal energy deicing system for bridge deck using a pile heat exchanger.” Int. J. Energy Res. 43 (1): 596–603. https://doi.org/10.1002/er.4266.
Kong, G. Q., Y. Zhou, and H. L. Liu. 2018. “Nonlinear model analysis on radial bulging deformation of geosynthetic-encased stone columns.” Int. J. Geomech. 18 (10): 06018022. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001195.
Lee, D., C. Yoo, and S. Park. 2007. “Model tests for analysis of load carrying capacity of geogrid encased stone column.” In Proc., 17th Int. Offshore and Polar Engineering Conf., 1632–1635. Cupertino, CA: ISOPE.
Lo, S. R., R. Zhang, and J. Mak. 2010. “Geosynthetic-encased stone columns in soft clay: A numerical study.” Geotext. Geomembr. 28 (3): 292–302. https://doi.org/10.1016/j.geotexmem.2009.09.015.
Low, B., S. Tang, and V. Choa. 1994. “Arching in piled embankments.” J. Geotech. Engrg. 120 (11): 1917–1938. https://doi.org/10.1061/(ASCE)0733-9410(1994)120:11(1917).
Madhav, M. R., and P. P. Vitkar. 1978. “Strip footing on weak clay stabilized with a granular trench or pile.” Can. Geotech. J. 15 (4): 605–609. https://doi.org/10.1139/t78-066.
McKenna, J. M., W. A. Eyre, and D. R. Wolstenholme. 1975. “Performance of an embankment supported by stone columns in soft ground.” Géotechnique 25 (1): 51–59. https://doi.org/10.1680/geot.1975.25.1.51.
Murugesan, S., and K. Rajagopal. 2010. “Studies on the behavior of single and group of geosynthetic encased stone columns.” J. Geotech. Geoenviron. Eng. 136 (1): 129–139. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000187.
Pulko, B., B. Majes, and J. Logar. 2011. “Geosynthetic-encased stone columns: Analytical calculation model.” Geotext. Geomembr. 29 (1): 29–39. https://doi.org/10.1016/j.geotexmem.2010.06.005.
Raithel, M., and H. G. Kempfert. 2000. “Calculation models for dam foundations with geotextile coated sand columns.” In Proc., Int. Conf. on Geotechnical & Geological Engineering (GeoEng 2000), 347. Melbourne, Australia: Technomic.
Raithel, M., V. Küster, and A. Lindmark. 2004. “Geotextile-encased columns–A foundation system for earth structures, illustrated by a dyke project for a works extension in Hamburg.” In Proc., Nordic Geotechnical Meeting, NGM. Linköping, Sweden: Swedish Geotechnical Society.
Yoo, C. 2010. “Performance of geosynthetic-encased stone columns in embankment construction: Numerical investigation.” J. Geotech. Geoenviron. Eng. 136 (8): 1148–1160. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000316.
Yoo, C., and S. B. Kim. 2009. “Numerical modeling of geosynthetic-encased stone column-reinforced ground.” Geosynth. Int. 16 (3): 116–126. https://doi.org/10.1680/gein.2009.16.3.116.
Yoo, C., and D. Lee. 2012. “Performance of geogrid-encased stone columns in soft ground: Full-scale load tests.” Geosynth. Int. 19 (6): 480–490. https://doi.org/10.1680/gein.12.00033.
Zhang, J. H., J. Li, Y. Yao, J. L. Zheng, and F. Gu. 2018. “Geometric anisotropy modeling and shear behavior evaluation of graded crushed rocks.” Constr. Build. Mater. 183 (Sep): 346–355. https://doi.org/10.1016/j.conbuildmat.2018.06.188.
Zhang, L., and M. Zhao. 2015. “Deformation analysis of geotextile-encased stone columns.” Int. J. Geomech. 15 (3): 04014053. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000389.
Zhou, H., G. Q. Kong, H. L. Liu, and L. Laloui. 2018. “Similarity solution for cavity expansion in thermoplastic soil.” Int. J. Numer. Anal. Methods Geomech. 42 (2): 274–294. https://doi.org/10.1002/nag.2724.
Information & Authors
Information
Published In
International Journal of Geomechanics
Volume 19 • Issue 6 • June 2019
Copyright
© 2019 American Society of Civil Engineers.
History
Received: May 7, 2018
Accepted: Dec 6, 2018
Published online: Apr 11, 2019
Published in print: Jun 1, 2019
Discussion open until: Sep 11, 2019
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.