International Journal of Applied Science and Engineering
Published by Chaoyang University of Technology

Himanshu Gupta1*, Ravikant S. Sathe1, Jitendra Kumar Sharma2

1 Research Scholar, Department of Civil Engineering, Rajasthan Technical University, Kota., India.

2 Professor, Department of Civil Engineering, Rajasthan Technical University, Kota., India.

 

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ABSTRACT

Stone columns are a more economical and efficient method to enhance the strength of expansive soils. Using a granular blanket over the top of the ordinary stone columns (OSC) improves the drainage and distribution of the applied stress impending from the superstructure. The present study studied the effect of geogrid layers in a granular blanket (GB) over the top of the OSC numerically using 'PLAXIS 2D'. 'Mohr-Coulomb failure criterion was deliberated for the stone column, granular blanket, expansive soil, and elastoplastic behavior is considered for geogrid layers as reinforcement. Present review results are validated with the experimental results and agree greatly. Numerical results show that the construction of a GB with a geogrid layer over the stone column increases stress transformation to the depth of OSC. Thus 'stress concentration' is decreased in the higher zone of the OSC. Likewise, assessing the impact of geogrid layers in a granular blanket on the 'bearing capacity and settlement of OSC, it was observed that it reduces the lateral bulging, settlement and increases the ground's bearing capacity.


Keywords: Geogrid layers, Granular blanket, Stone column, Settlement, Bulging.


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REFERENCES

  1. Ambily, A., Gandhi, S.R. 2007. Behavior of stone columns based on experimental and FEM analysis. Journal of Geotechnical and Geoenvironmental Engineering, 133,405–415. https://doi.org/10.1061/(ASCE)1090-0241(2007)133:4(405)

  2. Bostjan, P., Bojan, M., Janko, L. 2011. Geosynthetic- encased stone columns: Analytical calculation model. Geotextiles and Geomembranes, 29, 29–39. https://doi.org/10.1016/j.geotexmem.2010.06.005

  3. Chakraborty, M., Kumar, J. 2014. Bearing capacity of circular foundations reinforced with geogrid sheets. Soils and Foundations, 54, 820–832. https://doi.org/10.1016 /j.sandf.2014.06.013

  4. Deb, K., Mohapatra, S.R. 2013. Analysis of stone column- supported geosynthetic-reinforced embankments. Applied Mathematical Modeling, 37, 2943–2960. https:// doi.org/10.1016/j.apm.2012.07.002

  5. Ghazavi, M., Nazariafshar, J. 2013. Bearing capacity of geosynthetic encased stone columns. Geotextiles and Geomembranes, 38, 26–36. https://doi.org/10.1016/j.geotexmem.2013.04.003

  6. Han, M., Gabr, M.A. 2002. Numerical analysis of Geosynthetic-Reinforced and Pile-Supported Earth platforms over soft soil. Journal of Geotechnical and Geoenvironmental Engineering, 128, 44–53. https:// doi.org/10.1061/(ASCE)1090-0241(2002)128:1(44)

  7. Hanna, A., Etezad, M., Ayadat, T. 2013. Mode of failure of a group of stone columns in soft soil. International Journal of Geomechanics, 13, 87–96. https://doi.org/10.1061/(ASCE)GM.1943-5622.0000175

  8. Manne A. and Satyam N. 2013. Numerical modeling of granular soils under cyclic triaxial testing. Proceedings of Indian Geotechnical Conference, Rorkee.

  9. Madhav, M.R., Vitkar, R.P. 1978. Strip footing on weak clay stabilized with a granular trench or pile. Canadian Geotechnical Journal, 15, 605–609. https://doi.org/10.1139/t78-066

  10. Mehrannia, N., Kalantary, F., Ganjian, N. 2018. Experimental study on soil improvement with stone columns and granular blankets. Journal of Central South University, 25, 866−878. https://doi.org/10.1007/s11771-018-3790-z

  11. Murtaza, H., Samadhiya, N.K. 2016. Experimental and Numerical Analysis of Geosynthetic-Reinforced Floating Granular Piles in Soft Clays. International Journal of Geosynthetics and Ground Engineering, 2, 129–139. https://doi.org/10.1007/s40891-016-0062-6

  12. Murugesan, S., Rajagopal, K., 2009. Studies on the behavior of single and group of geosynthetic encased stone columns. Journal of Geotechnical and Geoenvironmental Engineering, 136, 129–139. https://doi.org/10.1061/(ASCE)GT.1943-5606.0000187

  13. Nazariafshar, J.N., Ghazavi, M. 2014. Experimental studies on bearing capacity of geosynthetic reinforced stone columns. Arabian Journal of Science and Engineering, 39, 1559–1571. https://doi.org/10.1007/s13369-013-0709-8

  14. Nazariafshar, J., Ghazavi, M. 2014. A simple analytical method for calculation of bearing capacity of stone-column. International Journal of Civil Engineering, 12, 15–25.

  15. Nazariafshar, J., Mehrannia, N., Kalantary, F. 2019. Bearing capacity of group of stone columns with granular blankets. International Journal of Civil Engineering, 17, 253–263. https://doi.org/10.1007/s40999-017-0271-y

  16. Niroumand, H., Khairul, A.K., Chong, S.Y. 2011. Soil improvement by reinforced stone columns based on experimental work. Electronic Journal of Geotechnical Engineering, 16, 1477-1499

  17. Obrzud R. 2010. On the use of the hardening soil small strain model in geotechnical practice. Numerics in Geotechnics and Structures, 16, 1–16.

  18. Rezaei, M.M., Lajevardi, S.H., Saba, H., Ghalandarzadeh, A., Zeighami, E. 2019. Laboratory study on single columns reinforced with steel bars and discs. International Journal of Geosynthetics and Ground Engineering, 5, 1-14. https://doi.org/10.1007/s40891-019-0154-1

  19. Shahu, J., Madhav, M., Hayashi, S. 2000. Analysis of soft ground-granular pile-granular mat system. Computers and Geotechnics, 27, 45–62. https://doi.org/10.1016/S0266-352X(00)00004-5

  20. Tan, X., Zhao, M., Chen, w. 2018. Numerical simulation of a single stone column in soft clay using the discrete element method. International Journal of Geomechanics, 18, 1–12. https://doi.org/10.1061/(ASCE)GM.1943-5622.0001308

  21. Vijayalakshmi R. and Satyam N. 2011. Finite element analysis of tunnels in siwalik hills of himachal pradesh using PLAXS 3D. International Conference on Geotechnics for sustainable development, Hanoi, Vietnam.


ARTICLE INFORMATION

Received: 2022-03-15
Revised: 2022-05-28
Accepted: 2022-07-12
Available Online: 2022-08-30


Cite this article:

Gupta, H., Sathe, R.S., Sharma, J.K., Numerical analysis on load-settlement response of reinforced granular blanket over ordinary stone column. International Journal of Applied Science and Engineering, 19, 2022057. https://doi.org/10.6703/IJASE.202209_19(3).006

 

  Copyright The Author(s). This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are cited.

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