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Ground improvement using geocells to enhance trafficability in desert soils

  • Kumar, Anand (Department of Civil Engineering, Indian Institute of Technology Roorkee) ;
  • Singh, Akshay P. (Department of Civil Engineering, Indian Institute of Technology Roorkee) ;
  • Chatterjee, Kaustav (Department of Civil Engineering, Indian Institute of Technology Roorkee)
  • 투고 : 2018.07.25
  • 심사 : 2019.09.09
  • 발행 : 2019.09.20

초록

Massive investments are going on to promote and build transportation infrastructure all across the globe with the challenges being more than budgetary. Sandy soils which are predominant in coastal and border areas in India have typical characteristics. The shear strength of such soil is very low which makes it difficult for any kind of geotechnical construction and hence soil stabilization needs to be carried out for such soil conditions. The use of geocells is one of the most economical methods of soil improvement which is used to increase strength and stiffness and reduce the liquefaction potential of the soil. The use of geocells in stabilizing desert sand and results from a series of plate load test on unreinforced soil and geocell reinforced homogenous sand beds are presented in the present study. It also compares the field results using various load class vehicles like heavy load military vehicles on geocell reinforced soils with the experimental results and comes out with the fact that the proposed technique increases the strength and stiffness of sandy soil considerably and provides a solution for preventing settlement and subsidence.

키워드

참고문헌

  1. Aboobacker, F.M.P., Saride, S. and Madhira, M.R. (2015), "Numerical modelling of strip footing on geocell-reinforced beds", Proc. Inst. Civ. Eng. Ground Improv., 168(3), 194-205. https://doi.org/10.1680/grim.13.00015.
  2. ASTM D2487 (2017), Standard Practice for Classification of Soils for Engineering Purposes (Unified Soil Classification System), ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  3. ASTM D4253 (2016), Standard Test Methods for Maximum Index Density and Unit Weight of Soils Using a Vibratory Table, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  4. ASTM D4254 (2000), Standard Test Methods for Minimum Index Density and Unit Weight of Soils and Calculation of Relative Density, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  5. ASTM D5321/D5321M (2017), Standard Test Method for Determining the Shear Strength of Soil-Geosynthetic and Geosynthetic-Geosynthetic Interfaces by Direct Shear, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  6. ASTM D6913/D6913M (2017), Standard Test Methods for Particle-Size Distribution (Gradation) of Soils Using Sieve Analysis, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  7. ASTM D854 (2014), Standard Test Methods for Specific Gravity of Soil Solids by Water Pycnometer, ASTM International, West Conshohocken, Pennsylvania, U.S.A.
  8. Biabani, M.M., Indraratna, B. and Ngo, N.T. (2016), "Modelling of geocell-reinforced subballast subjected to cyclic loading", Geotext. Geomembranes, 44(4), 489-503. https://doi.org/10.1016/j.geotexmem.2016.02.001.
  9. Biswas, S. and Mittal, S. (2017), "Square footing on geocell reinforced cohesionless soils", Geomech. Eng., 13(4), 641-651. https://doi.org/10.12989/gae.2017.13.4.641.
  10. Freitag, D.R. (1965), "Wheels on soft soils: An analysis of existing data", Technical Report No. 3-670, United States Army Engineer Waterways Experiment Station, Corps of Engineers, Vicksburg, Mississippi, U.S.A.
  11. Hegde, A. and Sitharam, T.G. (2016), "Behaviour of geocell reinforced soft clay bed subjected to incremental cyclic loading", Geomech. Eng., 10(4), 405-422. http://dx.doi.org/10.12989/gae.2016.10.4.405.
  12. Kargar, M. and Hosseini, S.M.M.M. (2018), "Influence of reinforcement stiffness and strength on load-settlement response of geocell-reinforced sand bases", Eur. J. Environ. Civ. Eng., 22(5), 596-613. https://doi.org/10.1080/19648189.2016.1214181.
  13. Khalaj, O., Tafreshi, S.N.M., Masek, B. and Dawson, A.R. (2015), "Improvement of pavement foundation response with multilayers of geocell reinforcement: Cyclic plate load test", Geomech. Eng., 9(3), 373-395. http://dx.doi.org/10.12989/gae.2015.9.3.373.
  14. Mehrjardi, G.T. and Motarjemi, F. (2018), "Interfacial properties of Geocell-reinforced granular soils", Geotext. Geomembranes, 46(4), 384-395. https://doi.org/10.1016/j.geotexmem.2018.03.002.
  15. Pokharel, S.K., Han, J., Leshchinsky, D., Parsons, R.L. and Halahmi, I. (2009), "Behavior of geocell-reinforced granular bases under static and repeated loads", Proceedings of the International Foundation Congress and Equipment Expo 2009, Orlando, Florida, U.S.A., November.
  16. Rush, E.S. and Stinson, B.G. (1967), "Trafficability tests with a two-wheel-drive industrial tractor", United States Army Engineer Waterways Experiment Station, Corps of Engineers, Vicksburg, Mississippi, U.S.A.
  17. Webster, S.L. and Watkins, J.E. (1977), "Investigation of construction techniques for tactical bridge approach roads across soft ground", Technical Report No. S-77-1, United States Army Engineer Waterways Experiment Station, Corps of Engineers, Vicksburg, Mississippi, U.S.A.
  18. Zhang, L., Zhao, M., Shi, C. and Zhao, H. (2010), "Bearing capacity of geocell reinforcement in embankment engineering", Geotext. Geomembranes, 28(5), 475-482. https://doi.org/10.1016/j.geotexmem.2009.12.011.

피인용 문헌

  1. Numerical investigation of geocell reinforced slopes behavior by considering geocell geometry effect vol.24, pp.6, 2019, https://doi.org/10.12989/gae.2021.24.6.589