...M. Samanta; R. Bhowmik; H. Khanderi The seismic stability of geosynthetic structures incorporating soil-geomembrane interfaces depends largely on their response to dynamic loads caused by earthquakes or traffic. The present study investigates the dynamic shearing response of sand-smooth geomembrane...

... element analysis Load cell Interface Stone columns increase the bearing capacity and reduce the settlement of soft soil foundations by providing a higher shear resistance and stiffness. Moreover, the stone columns also act as vertical drains and speed up the consolidation process...

... is the portion of the geogrid on which the mobilisation of interaction mechanisms withstands the applied pullout load. Evaluation of the active length can allow for the understanding of the interaction mechanisms and can therefore be important for the design of the soil–geosynthetic interface. This paper...

...F.-Y. Liu; P. Wang; X. Geng; J. Wang; X. Lin The understanding of cyclic and post-cyclic behaviours of the soil–geosynthetic interface is essential for the design of geosynthetic- reinforced soil structures under repeated loads, such as those induced by traffic, earthquakes and compaction...

... a normal stress of 100 kPa, shearing occurred at the sand/geomembrane interface and the GCL sustained no visible damage after 25 cycles of loading with a displacement amplitude of 20 mm and a frequency of 1 Hz. Material property tests performed on pre-cyclic and post-cyclic GCL samples provided additional...

...M.J.A. Mendes; N. Touze-Foltz; E.M. Palmeira; P. Pierson ABSTRACT: The flow rates along the interface between damaged geomembranes (GM) and geosynthetic clay liners (GCL) placed on top of a compacted clay liner (CCL) were measured by means of laboratory tests performed with an apparatus especially...

...H. I. Ling; J.-P. Wang; D. Leshchinsky This paper describes the interaction behaviour of soil/geogrid and soil/concrete interfaces of a reinforced soil-retaining wall system under monotonic and cyclic loading conditions. A sand-clay mixture was tested with geogrids, which were manufactured from...

.... the interface, the GCL and the underlying soil liner, which is a CCL, are partially saturated in the numerical modelling performed. The first aim of the paper is to evaluate the impact of this partial saturation on the flow rates and the lateral extension of the wetted area for circular defects and defects...

...M. Li; S. Imaizumi Multi-layered geosynthetic liners are used widely in waste landfills. The shear stress mobilized at the top interface will be transmitted from the top to the bottom layer through frictional resistance on the interfaces between materials. It is important to understand fully...

... in composite liners. The interface between the geomembrane and the clay liner is modelled as a high hydraulic conductivity medium. This conceptualisation is inspired by previous work on single fractures in porous media. Flow rates obtained from simulations assuming a uniform interface transmissivity...

...J. P. Gourc; R. Reyes Ramírez The inclined plane test is used to determine either soil–geosynthetic or geosynthetic–geosynthetic interface properties, especially in cases where the stress normal to the interface is small. The design of sloped cap covers for landfill sites or along the banks...

...H.I. Ling; C. Burke; Y. Mohri; K. Matsushima Tilting table tests are typically used to determine the friction angle between soils and structures. A procedure is presented to determine both the adhesion and frictional properties of soil-geosynthetic interfaces under very low confining pressures...

...V.C. Xenaki; G.A. Athanasopoulos The results of laboratory direct shear tests conducted at the expanded polystyrene (EPS) geofoam-sand interface are presented in this paper. The sands used in the tests were composed of rounded to subangular particles with values of mean particle size ranging from...

...S.W. Perkins; E.V. Cuelho Pullout tests are commonly used to describe the ultimate shearing resistance developed along the interface between the confining soil and the geosynthetic as a function of normal stress confinement. Pullout tests can also be used to define the complete soil-geosynthetic...