- A Parametric Study of Geosynthetic Reinforced Column Supported Embankments
- D.S. Liyanapathirana ; N.N.S. Yapage ; H.G. Poulos ; R.B. Kelly
- ICGE Colombo 2015
- Year: 2015
- Geosynthetics ; Geosynthetics for Reinforcement
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- Effect of discrete fibre reinforcement on soil tensile strength
- J. Li ; C. Tang ; D. Wang ; X. Pei ; B. Shi
- Book Title / Journal: Journal of Rock Mechanics and Geotechnical Engineering
- Year: 2014 , Volume: 6
- Geosynthetics
- Description
- The tensile behaviour of soil plays a significantly important role in various engineering applications. Compacted soils used in geotechnical constructions such as dams and clayey liners in waste containment facilities can suffer from cracking due to tensile failure. In order to increase soil tensile strength, discrete fibre reinforcement technique was proposed. An innovative tensile apparatus was developed to determine the tensile strength characteristics of fibre reinforced soil. The effects of fibre content, dry density and water content on the tensile strength were studied. The results indicate that the developed test apparatus was applicable in determining tensile strength of soils. Fibre inclusion can significantly increase soil tensile strength and soil tensile failure ductility. The tensile strength basically increases with increasing fibre content. As the fibre content increases from 0% to 0.2%, the tensile strength increases by 65.7%. The tensile strength of fibre reinforced soil increases with increasing dry density and decreases with decreasing water content. For instance, the tensile strength at a dry density of 1.7 Mg/m3 is 2.8 times higher than that at 1.4 Mg/m3. It decreases by 30% as the water content increases from 14.5% to 20.5%. Furthermore, it is observed that the tensile strength of fibre reinforced soil is dominated by fibre pull-out resistance, depending on the interfacial mechanical interaction between fibre surface and soil matrix.
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- Centrifugal and numerical analysis of geosynthetic-reinforced soil embankments
- L. Sinong ; Z. Ningyu ; J. Linli ; L. Bo
- Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, September 2-6 2013
- Year: 2013
- Geosynthetics for Reinforcement ; Centrifuge Testing ; Finite Element / Finite Difference
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- Technique of reinforced soil base calculation under fall initiation in ground mass
- D. Zolotozubov ; A. Ponomaryov
- Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, September 2-6 2013
- Year: 2013
- Geosynthetics ; Geosynthetics for Reinforcement
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- Centrifuge model tests on foundation on geosynthetic reinforced slope
- W. Wu ; P. Aklik
- Proceedings of the 18th International Conference on Soil Mechanics and Geotechnical Engineering, Paris, September 2-6 2013
- Year: 2013
- Geosynthetics for Reinforcement ; Slope Stability ; Centrifuge Testing
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- Modeling Hydraulic Conductivity of a Geotextile Filter during Suspended Solids Accumulation
- C.A. Franks ; A.H. Aydilek ; A.P. Davis
- Book Title / Journal: Geosynthetics International
- Year: 2013 , Volume: 20
- Geosynthetics
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- High Temperature Air Channel Testing of Thermally Bonded PVC Geomembrane Seams
- T.D. Stark ; L. F. Pazmino
- Geosynthetics International Journal, Vol. 18, No. 2, July, 2011, pp. 1-4
- Year: 2011
- Geosynthetics
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- High-temperature air channel testing of thermally bonded PVC geomembrane seams
- T.D. Stark ; L. F. Pazmino
- Geosynthetics International, January, 2011, 18, No. 2
- Year: 2011
- Geosynthetics
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- High temperature air channel of thermally bonded PVC geomembrane seams
- T.D. Stark ; L.F. Pazmino
- Book Title / Journal: Geosynthetics International
- Year: 2011 , Volume: 18
- Geosynthetics
- Description
- The objective of this paper is to present a procedure for high sheet temperature air channel testing of dual track thermal seams for 0.75 mm thick PVC geomembranes. This objective is accomplished by developing relationships between seam peel strength and seam burst pressure for sheet temperatures ranging from 46.7C to 62.8C during field air channel
testing. This paper extends the original relationships presented by Thomas et al. (2003a) and Stark et al. (2004) that only extend to 46.7C because a sheet temperature greater than 46.7C is frequently encountered during hot summer months. The original relationship is extended to 62.8C using the Arrhenius model and a polynomial equation is presented that can be used to convert the sheet temperature during field air channel testing to the air channel pressure required to ensure the specified seam peel strength of 2.6 N/mm (15 lb/in) is met or exceeded. Thus, the proposed relationship and equation allow the seam peel strength to be verified by field air channel testing without conducting destructive tests.
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- Puncture Protection of PVC Geomembranes
- T.D. Stark ; L. F. Pazmino
- accepted with revisions to Geosynthetics International Journal, January, 2010
- Year: 2010
- Geosynthetics
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- Numerical modeling of diffusion for volatile organic compounds through composite landfill liner systems
- T.B. Nguyen ; H. Choi ; J. Lim ; T.D. Stark
- KSCE Journal of Civil Engineering, , November 21, 2010, Volume 15, Number 6, pp. 1033-1039
- Year: 2010
- Geosynthetics
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- Design of a landfill final cover system
- T.D. Stark ; E.J. Newman
- Book Title / Journal: Geosynthetics International
- Year: 2010 , Volume: 17
- Landslides ; Slope Stability ; Geosynthetics
- Description
- This paper describes a final cover slope failure at a municipal solid waste containment facility. The lessons learned from this case history include: (i) slope stabi lity analyses should be conducted whenever field conditions difTer from initial design assumptions, such as a steeper slope and different geosynthetics; (ii) publishcd values of interface strength/friction angle should not be used for final design, instead site-specific interface testing should be used; (iii) final cover slope angle should not exceed the lowest geosynthetic interface strength in the cover system to prevent tension in the geosynthetics and/or progressive slope failure of the slope; and (v) designers should resist the temptation to utilise a pre-existing final cover design without performing the necessary field reconnaissance, interface testing, analysis, and design for the new site.
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- Monitoring of performance in four dikes on soft soil
- J.L. Justo ; J. Saura ; Silva E.M.J. Da ; C. Soriano ; P. Durand
- 17th International Conference on Soil Mechanics and Geotechnical Engineering (Alexandria)
- Year: 2009
- Instrumentation ; Geosynthetics for Reinforcement ; Settlements
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- Guide for Designing Subgrade Enhancing Geotextiles
- Imad Basheer
- Caltrans - California Department of Transportation.
- Year: 2009
- Geosynthetics
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- Ten-year PVC Geomembrane Durability
- T.D. Stark ; E. J. Newman
- Geosynthetics International Journal, Vol. 16, No. 2, 2009, pp. 97-108
- Year: 2009
- Geosynthetics
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