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


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.


Resonant column Shear modulus Damping ratio Geosynthetic Clay 

List of symbols


Confining pressure


Damping ratio


Shear strain


Height of between two layers


Minimum damping ratio of unreinforced sample


Optimum moisture content


Layering Index


Composite layer (2 geomembranes + 1 geotextile)


Mass density




Diameter of sample


Shear modulus


Maximum shear modulus of unreinforced sample


Specific gravity



H, h

Total height of sample




Wave velocity


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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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