A generalized artificial intelligence model for estimating the friction angle of clays in evaluating slope stability using a deep neural network and Harris Hawks optimization algorithm
Sign Up to like & getrecommendations! Published in 2021 at "Engineering With Computers"
DOI: 10.1007/s00366-020-01272-9
Abstract: In landslide susceptibility mapping or evaluating slope stability, the shear strength parameters of rocks and soils and their effectiveness are undeniable. However, they have not been studied for all-natural materials, as well as different locations.… read more here.
Keywords: model; friction angle; angle clays; dmlp model ... See more keywords
ISRM Suggested Method for Determining the Basic Friction Angle of Planar Rock Surfaces by Means of Tilt Tests
Sign Up to like & getrecommendations! Published in 2018 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-018-1627-6
Abstract: The basic friction angle plays a key role when estimating the shear strength of discontinuities for rock engineering projects, since a large body of research has shown that rock joint shear strength models that consider… read more here.
Keywords: friction; tilt tests; friction angle; basic friction ... See more keywords
Shear Strength of Rock Fractures Under Dry, Surface Wet and Saturated Conditions
Sign Up to like & getrecommendations! Published in 2020 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-020-02061-y
Abstract: For rock fractures, the degradations in the strength of contacting asperities and the surface frictional resistance are responsible for the water-induced weakening in the shear strength. To quantitatively examine their independent roles, direct shear tests… read more here.
Keywords: strength; surface wet; shear strength; dry surface ... See more keywords
Measurement of the basic friction angle of planar rock discontinuities with three rock cores
Sign Up to like & getrecommendations! Published in 2017 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-017-1045-0
Abstract: The paper presents the results of tilt tests using a large number of three-core samples, aiming to establish a method for determining the basic friction angle of planar rock discontinuities. The three-core tilt test is… read more here.
Keywords: core; basic friction; rock; friction angle ... See more keywords
Weakening of mudstone fragments due to disintegration: an experimental investigation
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DOI: 10.1007/s10064-020-01874-z
Abstract: Red-bed mudstone is widely distributed throughout the Three Gorges Reservoir Area, China. This geological material easily disintegrates into fragments during engineering activities. The potential factors that influence the disintegration (grain composition, slake durability index, grain… read more here.
Keywords: mudstone; disintegration; friction angle; fractal dimension ... See more keywords
Considerations on the Laboratory Measurement of the Basic Friction Angle of Planar Rock Surfaces/Effect of Testing Methods and Surface Polishing
Sign Up to like & getrecommendations! Published in 2020 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-020-01198-5
Abstract: Over last decades, basic friction angle has been considered as one of the essential components of the developed criteria for shear strength of rock joints and thus an important input parameter in numerical modeling of… read more here.
Keywords: surface polishing; friction; friction angle; basic friction ... See more keywords
Determination of geomembrane – protective geotextile friction angle: An insight into the shear rate effect
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DOI: 10.1016/j.geotexmem.2019.11.007
Abstract: Abstract This study investigates how the shear rate can affect the geomembrane – protective geotextile friction angle. Four types of geomembranes (GMB) were considered (EPDM, HPDE, PP, and PVC) and a single nonwoven needle-punched geotextile… read more here.
Keywords: geotextile; friction; shear rate; friction angle ... See more keywords
Sand type effect on the behaviour of sand-granulated rubber mixtures: Integrated study from micro- to macro-scales
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DOI: 10.1016/j.powtec.2018.10.025
Abstract: Abstract The mechanical behaviour of rubber mixed with different types of host sands is investigated from micro- to macro-scales. The change of the mobilized friction angle because of rubber inclusion is associated to the change… read more here.
Keywords: friction angle; micro macro; rubber; particle ... See more keywords
Determination of friction angle of soil using double-punch test approach: An experimental study
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DOI: 10.1080/23311916.2017.1419415
Abstract: Abstract Estimation of soil strength indices is prerequisite for the design of foundations, pavements, retaining walls and many other engineering interventions. Friction angle, φ is a shear strength parameter which is very crucial in assessing… read more here.
Keywords: angle soil; friction angle; punch test; double punch ... See more keywords
Effective friction angle of clays and silts from piezocone penetration tests
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DOI: 10.1139/cgj-2017-0451
Abstract: An existing effective stress limit plasticity solution for piezocone penetration tests (CPTu) is calibrated to evaluate the effective stress friction angle ( ) for undrained conditions for a variet... read more here.
Keywords: piezocone penetration; penetration tests; friction angle;
Experimental Studies on the Basic Friction Angle of Planar Rock Surfaces by Tilt Test
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Testing and Evaluation"
DOI: 10.1520/jte20170308
Abstract: The basic friction angle is a basic parameter for estimating the shear strength of rock discontinuities. The value of the basic friction angle can be determined using the tilt test. There are still no standard… read more here.
Keywords: basic friction; tilt test; friction angle;