Environmental Earth Sciences

, Volume 61, Issue 7, pp 1449–1456 | Cite as

Evaluation of dynamic properties of geosynthetic reinforced clay samples for environmental impact practices

Original Article

Abstract

A series of tests were conducted to investigate the improvement of damping properties of clay samples with geosynthetic inclusions. Flexible thermoplastic polymer synthetics improve damping properties of clay samples. Resonant column tests were conducted to measure the low strain shear modulus and damping ratio of laboratory prepared synthetic inclusion clay specimens. The shear modulus and damping ratio of the reinforced clay samples were investigated considering geosynthetic type (geotextile and geomembrane), number of geosynthetic sheets, and confining pressure. The test results demonstrated that the geomembrane and the number of geosynthetic sheets significantly improved the shear modulus and damping ratio of reinforced clay samples compared with those of the unreinforced clay samples.

Keywords

Resonant column Shear modulus Damping ratio Geosynthetic Clay 

List of symbols

σ

Confining pressure

ξ

Damping ratio

γ

Shear strain

ΔH

Height of between two layers

ξmin

Minimum damping ratio of unreinforced sample

ωopt

Optimum moisture content

Li

Layering Index

com

Composite layer (2 geomembranes + 1 geotextile)

ρ

Mass density

A0,n

Amplitudes

D

Diameter of sample

G

Shear modulus

Gmax

Maximum shear modulus of unreinforced sample

Gs

Specific gravity

gtx

Geotextile

H, h

Total height of sample

mem

Geomembrane

Vs

Wave velocity

References

  1. Akbulut S, Hasiloglu AS, Pamukcu S (2004) Data generation for shear modulus and damping ratio in reinforced sands using adaptive neuro-fuzzy inference system. Soil Dyn Earthq Eng 24(11):805–814CrossRefGoogle Scholar
  2. Consoli NC, Prietto PDM, Ulbrich LA (1999) The behavior of a fiber reinforced cemented soil, Ground Improvement. London 3(1):21–30Google Scholar
  3. Delfosse-Ribay E, Djeran-Maigre I, Richard Cabrillac R, Gouvenot DD (2004) Shear modulus and damping ratio of grouted sand. Soil Dyn Earthq Eng 24(6):461–471CrossRefGoogle Scholar
  4. Drnevich VP (1992) Long-Tor Resonant Column Apparatus Operating Manual, Soil Dynamics Instruments, IncGoogle Scholar
  5. Drnevich VP, Hardin BO, Shippy DJ (1978) Modulus and damping of soils by the Resonant-Column Method. Dyn Geotech Test ASTM STP 654:91–152CrossRefGoogle Scholar
  6. Foose GJ, Benson CH, Bosscher PJ (1996) Sand reinforced with shredded waste tires. J Geotech Eng ASCE 122(9):760–767CrossRefGoogle Scholar
  7. Gray DH, Al-Refeai T (1986) Behavior of fabric versus fiber-reinforced sand. J Geotech Eng ASCE 112(8):804–826CrossRefGoogle Scholar
  8. Gray DH, Ohashi H (1983) Mechanics if fiber reinforcement in sand. J Geotech Eng ASCE 109(3):335–353CrossRefGoogle Scholar
  9. Haeri SM, Noorzad R, Oskoorouchi AM (2000) Effects of geotextile reinforcement on the mechanical behavior of sand. Geotext Geomembr 18:385–402CrossRefGoogle Scholar
  10. Hall JR, Richart FE Jr (1963) Dissipation of elastic wave energy in granular soils. J Soil Mech Found Div ASCE 89(SM6):27–56Google Scholar
  11. Lee JH, Saldago R, Bernal A, Lowell CW (1999) Shredded tires and rubber sand as lightweight backfill. J Geotech Geoenviron Eng ASCE 125(2):132–141CrossRefGoogle Scholar
  12. Maher MH, Gray DH (1990) Static response of sand reinforced with randomly distributed fibers. J Geotech Eng ASCE 116(11):1661–1677CrossRefGoogle Scholar
  13. McGrown A, Andrawes KZ, Al-Hasani MM (1978) Effect of inclusion properties on the behavior of a sand. Geotechnique 28(3):327–346CrossRefGoogle Scholar
  14. Murray JJ, Frost JD, Wang Y (2000) Behavior of a sandy silt reinforced with discontinuous recycled fiber inclusions. Transportation Research Record 1714, TRB, 9–17Google Scholar
  15. Pamukcu S, Akbulut S (2006) Thermoelastic enhancement of damping of sand using synthetic ground rubber. J Geotech Eng ASCE 132(4):501–510CrossRefGoogle Scholar
  16. Puppala AJ, Musenda C (2000) Effects of fiber reinforcement on strength and volume change in expansive soils. Transportation Research Record 1736, TRB, 134–140Google Scholar
  17. Romero, S (1996) Determination of shear modulus using random-frequency low strain dynamic excitation and artificial neural networks. Master Thesis, Civil and Environmental Engineering, Lehigh University, 10–75Google Scholar
  18. Santoni RL, Tingle JS, Webster SL (2001) Engineering properties of sand fiber mixtures for road construction. J Geotech Geoenviron Eng ASCE 127(3):258–268CrossRefGoogle Scholar
  19. Vercueil PB, Cordary D (1997) Study of the liquefaction resistance of a saturated sand reinforced with geosynthetics. Soil Dyn Earthq Eng 16:117–125CrossRefGoogle Scholar
  20. Wasti Y, Ozduzgun ZB (2001) Geomembrane-Geotextile interface shear properties as determined by inclined board and direct shear box tests. Geotext Geomembr 19:45–57CrossRefGoogle Scholar
  21. Worrall WE (1986) Clays and Ceramic Raw Materials. Elsevier, Essex, p 154Google Scholar

Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  1. 1.Department of Civil EngineeringAtaturk UniversityErzurumTurkey
  2. 2.Department of Civil and Environmental EngineeringLehigh UniversityLehighUSA

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