... other. This effect is more clearly seen when the harmonic motions are employed during the tests compared to the modified/scaled ground motions. The results of the tests with modified/scaled ground motions were used to evaluate the efficiency of the composite liner system in reducing the spectral...

...J.L. Hanson; T.S. Chrysovergis; N. Yesiller; D.C. Manheim ABSTRACT: This investigation was conducted to determine the effects of temperature and moisture on the shear strength of a double nonwoven geosynthetic clay liner (GCL) and a high-density polyethylene textured geomembrane (T-GM) interface...

... depletion from a GM immersed in leachate and in a composite liner with leachate above the liner at different incubation temperatures; (2) a comparison of the results of the diffusion model and the conventional first-order (exponential) antioxidant depletion model; (3) estimates of diffusion and partitioning...

...F. Saidi; N. Touze-Foltz; P. Goblet A numerical study was performed in order to investigate the influence on the flow rate of the presence of defects in the geomembrane of a composite liner involving GCLs. In the approach presented in this paper, porous media in the composite liner, i.e...

...F. Cartaud; P. Goblet; N. Touze-Foltz Leakage through composite liners used in landfills with a damaged geomembrane is analysed in this paper using a 2D numerical code. The main emphasis of this study is to assess the influence of the degree of saturation of the soil liner on the leakage rate...

...N. Touze-Foltz; J. P. Giroud This technical note presents empirical equations for the evaluation of the rate of advective flow through composite liners, i.e. liners comprising a geomembrane and a low-permeability soil layer. The advective flow considered is due to large circular defects...

...J. P. Giroud; N. Touze-Foltz This paper presents equations for calculating the rate of liquid flow through defects in the geomembrane component of a composite liner. The considered defects have a uniform width and have a length that is finite or infinite. Two types of defects are considered: narrow...

...N. Touze-Foltz; J. P. Giroud This paper presents empirical equations for the evaluation of advective flow rates through composite liners (i.e. liners comprising a geomembrane and a low-permeability soil layer). The advective flow is due to defects in the geomembrane and depends on contact...

...C.-N. Liu; R. B. Gilbert Tensile loads can develop in geosynthetic layers in landfills on steep base-liner side slopes during filling. These loads develop due to interim geometries during the filling sequence where the soils and/or waste materials placed on the side slope are supported partially...

..., Roseville, Minnesota 55113-4061, USA, Telephone: 1/612-222-2508, Telefax: 1/612-631-9334 2002 7 3 2002 12 11 2002 12 11 2002 Geomembrane Research Liner Landfill Technical Paper by D.J. Elton and I. Peggs GEOMEMBRANE RESEARCH NEEDS ABSTRACT: A US National Science Foundation...

...G.J. Foose; C.H. Benson; T.B. Edil Composite liners, consisting of a geomembrane overlying a soil liner, are often required as bottom liners for waste containment systems. In many applications, regulations prescribe the type of liner that must be installed. However, regulations often have...

...J.P. Giroud; N.D. Williams; T. Pelte; J.F. Beech This paper presents a method based on limit equilibrium to evaluate the stability of geosynthetic-soil layered systems on slopes. Examples of geosynthetic-soil layered systems constructed on slopes include liner systems used in landfills, liquid...