Welcome to Scholar Publishing Group

International Journal of Engineering Technology and Construction, 2024, 5(1); doi: 10.38007/IJETC.2024.050102.

Numerical Study of Bearing Deformation Characteristics of Geo-encasement Stone Column under Embankment Load


Shiyu Wang, Yu Yang

Corresponding Author:
Yu Yang

Poly (Sichuan) Investment Development Co., Ltd., Sichuan, China


This paper uses FLAC3D software to establish a numerical model of unit cells below the embankment, studying the characteristics of pile-soil settlement and settlement difference under different parameters. The results show that the cohesion of the road embankment has a higher impact on the pile-soil settlement difference compared to the road embankment load and the friction angle of the embankment. When the cohesiveness of the road embankment is less than 10kPa, increasing the cohesiveness can reduce the pile-soil settlement difference; but when the cohesion of the road embankment is greater than 10 kPa, continuing to increase the cohesiveness has a negligible effect on reducing the pile-soil settlement. When the friction angle of the embankment is below 30°, increasing the friction angle of the embankment can significantly reduce the pile-soil settlement difference. However, when the friction angle is above 30°, continuing to raise the embankment friction angle results in minimal changes in the pile-soil settlement value and the pile-soil settlement difference.


Geo-encasement Stone Column, Soft Foundation, Settlement, Numerical Analysis

Cite This Paper

Shiyu Wang, Yu Yang. Numerical Study of Bearing Deformation Characteristics of Geo-encasement Stone Column under Embankment Load. International Journal of Engineering Technology and Construction (2024), Vol. 5, Issue 1: 10-17. https://doi.org/10.38007/IJETC.2024.050102.


[1] Ambily A P, Gandhi S R. Behavior of stone columns based on experimental and FEM analysis. Journal of geotechnical and geoenvironmental engineering, 2007, 133(4): 405-415. 

[2] Cengiz C, Guler E. Load bearing and settlement characteristics of Geosynthetic Encased Columns under Seismic loads. Soil Dynamics and Earthquake Engineering, 2020, 136.

[3] Bonab S B, Lajevardi S H, Saba H R, et al. Experimental studies on single reinforced stone columns with various positions of geotextile. Innovative Infrastructure Solutions, 2020, 5(3).

[4] Pei T, Indraratna B, Rujikiatkamjorn C. Consolidation Analysis of Soft Ground Improved by Stone Columns Incorporating Foundation Stiffness. International Journal of Geomechanics, 2020, 20(6):04020067.

[5] Sivakumar V, Bell A, Mckelvey D, et al. Modelling vibrated stone columns in soft clay. Geotechnical Engineering, 2004, 157(3):137-149.

[6] Zhou Y, Kong G, Wen L, et al. Evaluation of geosynthetic-encased column-supported embankments with emphasis on penetration of column toe. Computers and Geotechnics, 2021, 132(7):104039.

[7] Zhao Minghua, Gu Meixiang, Zhang Ling, et al. Model test study on the impact of vertical geotechnical reinforcement on the load deformation of gravel piles. Chinese Journal of Geotechnical Engineering, 2014, 36(9): 1587-1593. 

[8] Chen Jianfeng, Wang Bo, Wei Jing, et al. Model tests of reinforced gravel pile composite foundation road embankment. Journal of China Highway, 2015, 28(9): 1-8.

[9] Ayadat, T, Hanna, et al. Encapsulated stone columns as a soil improvement technique for collapsible soil. . Ground Improvement, 2005, 9 (4): 137–147.

[10] Zhang Yiping, Wang Yang. Analytical solution of consolidation of geobag-filled sand-gravel pile composite foundation under non-instantaneous loading. Journal of Rock Mechanics and Engineering, 2011, 30(S1): 3096-3102.

[11] Lo S R, Zhang R, Mak J. Geosynthetic-encased stone columns in soft clay: a numerical study. Geotextiles and Geomembranes, 2010, 28(3): 292-302.

[12] Nasiri M, Hajiazizi M. An experimental and numerical investigation of reinforced slope using geotextile encased stone column. International Journal of Geotechnical Engineering, 2020.

[13] Zhang, Z, Han, et al. Numerical investigation on factors for deep-seated slope stability of stone column-supported embankments over soft clay. Engineering Geology Amsterdam, 2014, 168 (10), 104–113.

[14] Yoo C, Abbas Q. Laboratory investigation of the behavior of a geosynthetic encased stone column in sand under cyclic loading. Geotextiles and Geomembranes, 2020, 48(4): 431-442.