Determination of the coefficient of friction of cohesionless soils on polymer film facings of earth structures

Lysenko, V. P.

doi:10.1007/bf02308002

Cited by 3 publications

(1 citation statement)

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“…As a first attempt to improve reconciliation with the Shields curve, we will thus let the relative static friction coefficient φ deviate from unity. Lysenko (1980) 28 performed experiments to measure the static friction coefficient between various plastic films sandwiched by sediments. For polyethylene films (similar characteristics to, e.g., PLA), he found the range 0.31 ≤ μ s ≤ 0.33, whereas, for sediments, he found μ s,sed = 0.58.…”

Section: Resultsmentioning

confidence: 99%

Shields Diagram and the Incipient Motion of Microplastic Particles

Göral

Güler

Larsen

et al. 2023

Environ. Sci. Technol.

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Incipient motion conditions for 57 regular (spheres, cylinders, disks, square plates, cubes, square prisms, rectangular prisms, tetrahedrons, and fibers) and eight irregular microplastic particle groups, having various sizes and densities, are investigated in a circular flume. The present data set is combined with additional data from the literature and systematically analyzed. A new framework is developed for predicting incipient motion conditions for foreign particles, accounting for variations in static friction, hydraulic roughness, and hiding-exposure effects. Via this framework, incipient motion conditions for microplastic particles lying on a sediment bed are, for the first time, reconciled with the classical Shields diagram.

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Section: Resultsmentioning

confidence: 99%