Dynamic shear testing of a geomembrane/geosynthetic clay liner interface

J. D. Ross, Patrick Joseph Fox, J. T. Olsta

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

A series of large-scale direct shear tests were performed to measure the interface shear strength between a textured geomembrane (GMX) and a needle-punched geosynthetic clay liner (NP GCL) for large ranges of normal stress (σn,s = 13 to 2071 kPa) and shear displacement rate (R = 0.1 to 29,000 mm/min.). The experimental data indicate that failure mode of a GMX/GCL specimen depends on both σn,s and R. Tests conducted at low to moderate normal stress levels (σn,s < 692 kPa) produced interface failures for all displacement rates. At higher normal stress levels, partial or complete internal GCL failures occurred for low displacement rates (R < 100 mm/min.) and interface failures occurred for high displacement rates (R > 10,000 mm/min.). Peak shear strengths were largely unaffected by displacement rate except at very low (13 kPa) and very high (2071 kPa) normal stress levels. Displacement rate had a significant effect on large-displacement shear strengths at higher normal stresses (σn,s > 692 kPa), partly due to the effect of R on specimen failure mode. Financial support for this investigation was provided in part by Grant No. CMMI-0800030 from the Geotechnical Engineering Program of the U.S. National Science Foundation and by a grant from CETCO of Hoffman Estates, Illinois, USA. Geosynthetic materials were provided by CETCO and Agru America of Georgetown, South Carolina, USA. This support is gratefully acknowledged. The writers also thank Alexander Stern, a senior at The Ohio State University, for his assistance with the experimental work.

Original languageEnglish (US)
Title of host publication9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010
PublisherBrazilian Chapter of the International Geosynthetics Society
Pages649-652
Number of pages4
ISBN (Print)9788563456007
StatePublished - 2010
Event9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010 - Guaruja, Brazil
Duration: May 23 2010May 27 2010

Other

Other9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010
CountryBrazil
CityGuaruja
Period5/23/105/27/10

Fingerprint

Geomembranes
clay liner
geomembrane
geosynthetics
Clay
Shear strength
shear strength
Testing
Failure modes
Geosynthetic materials
Geotechnical engineering
geotechnical engineering
shear test
Needles
rate
effect

All Science Journal Classification (ASJC) codes

  • Geotechnical Engineering and Engineering Geology

Cite this

Ross, J. D., Fox, P. J., & Olsta, J. T. (2010). Dynamic shear testing of a geomembrane/geosynthetic clay liner interface. In 9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010 (pp. 649-652). Brazilian Chapter of the International Geosynthetics Society.
Ross, J. D. ; Fox, Patrick Joseph ; Olsta, J. T. / Dynamic shear testing of a geomembrane/geosynthetic clay liner interface. 9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010. Brazilian Chapter of the International Geosynthetics Society, 2010. pp. 649-652
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Ross, JD, Fox, PJ & Olsta, JT 2010, Dynamic shear testing of a geomembrane/geosynthetic clay liner interface. in 9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010. Brazilian Chapter of the International Geosynthetics Society, pp. 649-652, 9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010, Guaruja, Brazil, 5/23/10.

Dynamic shear testing of a geomembrane/geosynthetic clay liner interface. / Ross, J. D.; Fox, Patrick Joseph; Olsta, J. T.

9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010. Brazilian Chapter of the International Geosynthetics Society, 2010. p. 649-652.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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T1 - Dynamic shear testing of a geomembrane/geosynthetic clay liner interface

AU - Ross, J. D.

AU - Fox, Patrick Joseph

AU - Olsta, J. T.

PY - 2010

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N2 - A series of large-scale direct shear tests were performed to measure the interface shear strength between a textured geomembrane (GMX) and a needle-punched geosynthetic clay liner (NP GCL) for large ranges of normal stress (σn,s = 13 to 2071 kPa) and shear displacement rate (R = 0.1 to 29,000 mm/min.). The experimental data indicate that failure mode of a GMX/GCL specimen depends on both σn,s and R. Tests conducted at low to moderate normal stress levels (σn,s < 692 kPa) produced interface failures for all displacement rates. At higher normal stress levels, partial or complete internal GCL failures occurred for low displacement rates (R < 100 mm/min.) and interface failures occurred for high displacement rates (R > 10,000 mm/min.). Peak shear strengths were largely unaffected by displacement rate except at very low (13 kPa) and very high (2071 kPa) normal stress levels. Displacement rate had a significant effect on large-displacement shear strengths at higher normal stresses (σn,s > 692 kPa), partly due to the effect of R on specimen failure mode. Financial support for this investigation was provided in part by Grant No. CMMI-0800030 from the Geotechnical Engineering Program of the U.S. National Science Foundation and by a grant from CETCO of Hoffman Estates, Illinois, USA. Geosynthetic materials were provided by CETCO and Agru America of Georgetown, South Carolina, USA. This support is gratefully acknowledged. The writers also thank Alexander Stern, a senior at The Ohio State University, for his assistance with the experimental work.

AB - A series of large-scale direct shear tests were performed to measure the interface shear strength between a textured geomembrane (GMX) and a needle-punched geosynthetic clay liner (NP GCL) for large ranges of normal stress (σn,s = 13 to 2071 kPa) and shear displacement rate (R = 0.1 to 29,000 mm/min.). The experimental data indicate that failure mode of a GMX/GCL specimen depends on both σn,s and R. Tests conducted at low to moderate normal stress levels (σn,s < 692 kPa) produced interface failures for all displacement rates. At higher normal stress levels, partial or complete internal GCL failures occurred for low displacement rates (R < 100 mm/min.) and interface failures occurred for high displacement rates (R > 10,000 mm/min.). Peak shear strengths were largely unaffected by displacement rate except at very low (13 kPa) and very high (2071 kPa) normal stress levels. Displacement rate had a significant effect on large-displacement shear strengths at higher normal stresses (σn,s > 692 kPa), partly due to the effect of R on specimen failure mode. Financial support for this investigation was provided in part by Grant No. CMMI-0800030 from the Geotechnical Engineering Program of the U.S. National Science Foundation and by a grant from CETCO of Hoffman Estates, Illinois, USA. Geosynthetic materials were provided by CETCO and Agru America of Georgetown, South Carolina, USA. This support is gratefully acknowledged. The writers also thank Alexander Stern, a senior at The Ohio State University, for his assistance with the experimental work.

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M3 - Conference contribution

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BT - 9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010

PB - Brazilian Chapter of the International Geosynthetics Society

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Ross JD, Fox PJ, Olsta JT. Dynamic shear testing of a geomembrane/geosynthetic clay liner interface. In 9th International Conference on Geosynthetics - Geosynthetics: Advanced Solutions for a Challenging World, ICG 2010. Brazilian Chapter of the International Geosynthetics Society. 2010. p. 649-652