Interface Frictional Property Between Sand and Geomembrane

Gao, Junli; Zhang, Mengxi; Zhang, Wenjie

doi:10.1007/978-3-642-04460-1_104

Cited by 6 publications

(3 citation statements)

References 8 publications

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“…As the shear strength of the interface between geosynthetic materials is often less than the shear strength of the interface between the overlying refuse and geosynthetic materials, instability often occurs between geosynthetic materials in landfill liner systems. Therefore, the concept of the ribbed geomembrane was proposed by Gao et al [1].…”

Section: Introductionmentioning

confidence: 99%

“…In order to study ribbed geomembranes in more depth, this paper investigates the effects of rib shape, rib spacing, and rib height on the load settlement pattern of the ribbed geomembrane-geotextile liner system and the additional stresses in the landfill sand based on preliminary direct shear tests and reinforcement theory [8,9], with the aim of providing a more comprehensive representation of the properties of the ribbed geomembrane-geotextile interface through model tests and PIV analysis techniques.…”

Section: Introductionmentioning

confidence: 99%

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Interface Behavior Analysis of Different Geomembrane Liner Systems Based on PIV Techniques

Gao

Wang

2023

Applied Sciences

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The interfacial friction performance of the liner system has an important influence on the overall stability of modern landfills, but the interface of the liner system using conventional geomembranes may have problems such as shear failure and slip along the liner system. Accordingly, the concept of a ribbed geomembrane was proposed. Based on the laboratory model tests, the variation laws of p–s curves and the additional stress of sand were studied under different values of shape, rib spacing, and rib height. A series of particle image velocimetry (PIV) analyses of sand particles were performed to provide insight into the reinforcement mechanism of the ribbed geomembrane liner system. The results indicated that the ribbed geomembrane could obviously improve the stability of the liner system compared with the smooth geomembrane. The ribbed geomembrane formed an indirect influence area with sand in a specific range. The ribbed geomembrane with optimal values of rib spacing and rib height was beneficial to reduce the settlement of the upper sand and the stress redistribution of the sand particles.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interface Behavior Analysis of Different Geomembrane Liner Systems Based on PIV Techniques

Gao

Wang

2023

Applied Sciences

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“…Lin et al [24] analyzed the transfer mechanism of the shear force in a geomembrane liner using sandbag loads to simulate the landfills. Gao et al [25] studied the interfacial strength between a reinforced HDPE geomembrane and sand under a different normal stress through a large number of direct shear tests. However, at present, most of the researches on the shear strength of the interface between geomembrane and soil are conducted with sand or clay, because these two kinds of soil samples are common and easy to obtain, while few scholars study the shear strength of the interface between different industrial solid wastes and geomembrane, this is because industrial solid wastes are difficult to obtain and have certain toxicity.…”

Section: Introductionmentioning

confidence: 99%

Shear Testing of the Interfacial Friction Between an HDPE Geomembrane and Solid Waste

Zhou

Zhu

et al. 2020

Materials

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High-density polyethylene (HDPE) geomembrane is often used as an anti-seepage material in domestic and industrial solid waste landfills. To study the interfacial shear strength between the HDPE anti-seepage geomembrane and various solid wastes, we performed direct shear tests on the contact interface between nine types of industrial solid waste or soil (desulfurization gypsum, fly ash, red mud, mercury slag, lead-zinc slag, manganese slag, silica fume, clay and sand) and a geomembrane with a smooth or rough surface in Guizhou Province, China. Friction strength parameters like the interfacial friction angle and the apparent cohesion between the HDPE geomembrane and various solid wastes were measured to analyze the shear strength of the interface between a geomembrane with either a smooth or a rough surface and various solid wastes. The interfacial shear stress between the HDPE geomembrane and the industrial solid waste increased with shear displacement and the slope of the stress-displacement curve decreased gradually. When shear displacement increased to a certain range, the shear stress at the interface remained unchanged. The interfacial shear strength between the geomembrane with a rough surface and the solid waste was higher than for the geomembrane with a smooth surface. Consequentially, the interfacial friction angle for the geomembrane with a rough surface was larger. The geomembrane with a rough surface had a better shear resistance and the shear characteristics fully developed when it was in full contact with the solid waste.

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Prediction of Interface Friction Angle Between Landfill Liner and Soil Using Machine Learning

Mohammed¹,

Sravanam²,

Raviteja³

2022

Lecture Notes in Civil Engineering

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Interface Frictional Property Between Sand and Geomembrane

Cited by 6 publications

References 8 publications

Interface Behavior Analysis of Different Geomembrane Liner Systems Based on PIV Techniques

Interface Behavior Analysis of Different Geomembrane Liner Systems Based on PIV Techniques

Shear Testing of the Interfacial Friction Between an HDPE Geomembrane and Solid Waste

Prediction of Interface Friction Angle Between Landfill Liner and Soil Using Machine Learning

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