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Improving the Performance of Ordinary Stone Column by Geotextile Encasement

  • Anil Kumar ChoudharyEmail author
  • Binex Kunjumon
  • Jagadanand Jha
Conference paper
Part of the Lecture Notes in Civil Engineering book series (LNCE, volume 29)

Abstract

Marine clay usually possesses low shear strength coupled with high compressibility. These undesirable features make marine clay a problem either as a foundation material or a material for construction. Out of many methods to stabilize soft soils, stone column is one of the best preferred options. In soft soil, the effectiveness of ordinary stone column is low as the confining stress by surrounding soil is very less but such their performance can be substantially improved by providing a geotextile encasement around the column. The paper presents the results of series of laboratory model tests carried out with encased stone columns formed in marine clay. The effect of shear strength, (s/d) ratio, and seam strength of geotextile on load-carrying capacity was studied. The experiment is modeled in finite element analysis using PLAXIS. The experimental results were compared with those obtained from PLAXIS, and they showed very close resemblance. Ferrochrome slag which is a major waste material from stainless steel industry was used as the fill material which provides an ideal solution for effective waste management. The load settlement curves indicate that there is a great improvement in the load-bearing capacity of the stone column by geotextile encasement.

Keywords

Flyash Ferrochrome slag End-bearing piles Floating piles 

References

  1. Hughes JMO, Withers NJ (1974) Reinforcing of soft cohesive soils with stone columns. Ground Eng 7(3):42–49Google Scholar
  2. IS 15284: Part-1 (2003) Design and construction for ground improvement—guidelines, Part-1: stone colums. Indian Standards, Bureau of Indian Standards, New DelhiGoogle Scholar
  3. Malarvizhi SN, Ilamparuthi K (2004) Load versus settlement of clay bed stabilized with stone and reinforced stone columns. In: Proceedings. Asian regional conference on geosynthetics, GeoAsia, pp 322–329Google Scholar
  4. Murugesan S, Rajagopal K (2010) Studies on the behavior of single and group of geosynthetic encased stone columns. J Geotechn Geoenviron Eng 136(1):129–139CrossRefGoogle Scholar

Copyright information

© Springer Nature Singapore Pte Ltd. 2019

Authors and Affiliations

  • Anil Kumar Choudhary
    • 1
    Email author
  • Binex Kunjumon
    • 1
  • Jagadanand Jha
    • 2
  1. 1.Department of Civil EngineeringNational Institute of TechnologyJamshedpurIndia
  2. 2.Muzaffarpur Institute of TechnologyMuzaffarpurIndia

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