Effect of heterogeneity of particle properties on variability of laboratory sandy soil properties: A random discrete element perspective

Nie, Jiayan; Cui, Yifei; Yang, Zhiyong; Yin, Yi; Cao, Zi-Jun; Li, Dianqing

doi:10.1016/j.compgeo.2021.104497

Cited by 15 publications

(1 citation statement)

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“…e mesoscopic parameters of sandy soil particles in the model were calibrated by comparing the soil response in the numerical triaxial test and the laboratory test [14]. e confining pressure was applied by a servo mechanism.…”

Section: Gravelly Soil Modelingmentioning

confidence: 99%

Mechanism and Mesoscopic Characteristics of Indirectly Reinforced Gravelly Soil by a Geogrid

Liu¹,

Wang²,

Sun³

2022

Advances in Materials Science and Engineering

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The geogrid is a type of spatial network structure with a certain thickness; through its interactions with the surrounding soil, the soil can be reinforced. In this study, the characteristics of the interface between the geogrid and gravelly soil were investigated with a pull-out test. To investigate the mesoscopic characteristics of the geogrid-soil interface, the Particle Flow Code 3D (PFC3D) program was employed to simulate the pull-out test, which can reproduce the evolution of the influencing zones of the geogrid during the pull-out test from macroscopic and mesoscopic perspectives. Both sides of the geogrid were characterised by a shear zone and an advanced influencing zone. The geogrid indirectly reinforced the soil within the influencing zones to a certain extent, and the thickness of this zone was rarely related to the normal pressure. Additionally, the widths of the influencing zones above and below the interface were different; the above one was wider.

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Section: Gravelly Soil Modelingmentioning

confidence: 99%