...R. Thiel The behavior of strain-softening geosynthetic interfaces that can lead to progressive failures in lined containment facilities has been a source of confusion in slope stability evaluations for over 30 years. This paper presents 15 mechanisms that can potentially induce displacements along...

...S. R. Mohapatra; K. Rajagopal A systematic series of slope stability analyses were performed on embankments supported on soft clay soils treated with ordinary granular columns (OGCs) and geosynthetic encased granular columns (EGCs). The effect of various parameters such as the undrained shear...

...-slope by lowering the phreatic surface using the active drainage channels observed during laboratory experiments. These drainage channels provided a convenient passageway for seepage flow. The coupled numerical variably saturated flow modelling and slope stability modelling predicted the factor...

.... Particle-size distribution curve of silty sand © 2015 Thomas Telford Ltd 2015 Geosynthetics Hybrid geosynthetics Rainfall Low permeable soils Seepage Slope stability Drainage Recently, the frequency of rainfall-triggered slope failures around the world has been increasing...

... 2015 geosynthetics geosynthetic clay liner geomembrane interface shear strength slope stability landfill temperature moisture content liner cover surface texture The use of composite barriers is required by federal and state regulations in the USA for final cover and bottom...

... conditions. The internal drainage system was ineffective at dissipating piezometric pressures at the higher seepage gradients investigated at this lysimeter scale. Numerical slope stability modeling confirmed these observations, predicting a factor of safety below the critical value for global stability...

... of 42.6% and plasticity index of 18.4% and was classified as CL according to the Unified Soil Classification System. The model soil used for modelling was silty sand. Table 2 presents a summary of properties of the model soil used in this study. Geosynthetics Anchor Centrifuge Slope stability...

... equipment, buttress and horizontal seepage scenarios. In the latter case the LE equations previously presented in the literature significantly overestimate stability compared with the LE, CLA and FE analyses considered in this paper. Geosynthetics Veneer cover Landfill Cap Slope stability Limit...

... flow along the fine-grained layer (fine sand), indicating the effectiveness of the capillary barrier model, was observed during the rainfall tests. Geosynthetics Capillary barrier Slope stability A soil cover consisting of a fine-grained soil layer overlying a coarse-grained soil layer...

... theory to a more rotational sliding. © 2009 Thomas Telford Ltd 2009 Geosynthetics Sand Slope stability Seepage Numerical analysis Limit equilibrium The tilt (or avalanche) test was used to estimate the friction angle of the sand. The test is simple but appears to lead to more...

... 4 4 2009 © 2009 Thomas Telford Ltd 2009 Geosynthetics Earthquake Reinforcement Earth slope Slope stability Finite element analysis The mid-Niigata prefecture earthquake—magnitude 6.8 on the Richter scale—occurred in Japan on 23 October 2004. The epicentre was at latitude...

... strengths Direct shear test Shear strength Slope stability Water pressures This project involved an innovative water supply system for a new housing development near Greeley, Colorado. The system consists of a non-potable irrigation pond, a vertical turbine pump station with an automatic self...

... resistance of the geomembrane/compacted clay interface to a post-peak or large displacement value. This paper discusses the slides, direct shear testing, slope stability analyses used to evaluate the mobilized interface shear strength parameters, the relationship between moisture content and geomembrane...

... 21 09 2004 © 2004 Thomas Telford Ltd 2004 Geosynthetics Interface shear resistance Design Direct shear test Ring shear test Shear strength Slope stability The main objectives of this manuscript are to clarify the recommendations for the design of geosynthetic-lined...

... strength of bentonite and GCLs at these effective normal stresses supports the use of this envelope as a lower-bound strength for all types of GCL. This envelope establishes a conservative design check for slope stability and a benchmark for evaluating product-specific and project-specific test results...

... shear test Ring shear test Shear strength Slope stability Technical Paper by R.P. Hillman and T.D. Stark SHEAR STRENGTH CHARACTERISTICS OF PVC GEOMEMBRANE-GEOSYNTHETIC INTERFACES ABSTRACT: Torsional ring shear and large-scale direct shear tests were conducted to investigate the shear behavior...

... systems incorporating geomembrane barriers. geosynthetics Geomembrane Landfill cover Slope stability Landfill gas Technical Paper by R.S. Thiel DESIGN METHODOLOGY FOR A GAS PRESSURE RELIEF LAYER BELOW A GEOMEMBRANE LANDFILL COVER TO IMPROVE SLOPE STABILITY ABSTRACT: Pore pressures generated...

..., Telefax: 1/612-631-9334 1996 geosynthetics Slope stability Geosynthetic interfaces Waste containment Strain-Softening Technical Paper by R.B. Gilbert and R.J. Byrne STRAIN-SOFTENING BEHAVIOR OF WASTE CONTAINMENT SYSTEM INTERFACES ABSTRACT: Laboratory test results indicate that many...