Cyclic volumetric strain accumulation for sand under drained simple shear condition

Wu, Zhiqing; Yin, Zhen‐Yu; Dano, Christophe; Hicher, Pierre‐Yves

doi:10.1016/j.apor.2020.102200

Cited by 20 publications

(2 citation statements)

References 52 publications

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“…Two factors contribute to the gap growth: densification of granular materials and particle crushing. Densification widely exists in cycle loading tests of geotechnical materials, even for uncrushable materials [48,49], and particle crushing expands the gap.…”

Section: Unloading and Reloadingmentioning

confidence: 99%

Analysis of One-Dimensional Compression under a Wide Range of Stress with Densely Arrayed BPM

Zhang¹,

Xu²,

Huang³

2021

Computer Modeling in Engineering &Amp; Sciences

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In this paper, the densely arrayed bonded particle model is proposed for simulation of granular materials with discrete element method (DEM) considering particle crushing. This model can solve the problem of pore calculation after the grains are crushed, and reduce the producing time of specimen. In this work, several one-dimensional compressing simulations are carried out to investigate the effect of particle crushing on mechanical properties of granular materials under a wide range of stress. The results show that the crushing process of granular materials can be divided into four different stages according to e r -log σ y curves. At the end of the second stage, there exists a yield point, after which the physical and mechanical properties of specimens will change significantly. Under extremely high stress, particle crushing will wipe some initial information of specimens, and specimens with different initial gradings and void ratios present some similar characteristics. Particle crushing has great influence on grading, lateral pressure coefficient and compressibility of granular materials, and introduce extra irreversible volume deformation, which is necessary to be considered in modelling of granular materials in wide stress range.

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Section: Unloading and Reloadingmentioning

confidence: 99%

Analysis of One-Dimensional Compression under a Wide Range of Stress with Densely Arrayed BPM

Zhang¹,

Xu²,

Huang³

2021

Computer Modeling in Engineering &Amp; Sciences

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“…Laboratory stability tests provide the most complete information about the behavior of cohesive, rocky or artificially fixed soils under load [9,10]. However, no methodology for pre-compaction of dispersed soil samples prior to testing has been developed for stabilisation tests [11][12][13], with the exception of tests on frozen dispersed soils [14]. Stabilometric tests on dispersed soils can therefore only be carried out in the bulk state and therefore the question of directly determining the physical and mechanical properties of building materials at their maximum density remains open.…”

Section: Introductionmentioning

confidence: 99%

Laboratory measurements of dispersed soils as construction materials for railway embankments

2023

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Compacted construction sand - dispersed soil - is the main construction material for the construction of railway embankments. The supplier is obliged to present the main physico-mechanical properties of the building material not in free-flowing state, but in a compacted state, in which the material will work as part of railway embankments. A major problem in laboratory dispersed soil application tests is the inability to keep the specimen in its compacted state before placing it in a shear instrument or stabilisation meter. Hence, laboratory testing of dispersed soils can only be carried out in the bulk state and therefore the question of directly determining the physical and mechanical characteristics of building materials at their maximum density remains open. Methodology of direct testing of compacted samples in a single plane shear apparatus for determination of strength properties was developed and tested by the authors of the article, and also the methodology of determination of deformation properties by indirect way was suggested for preliminary evaluation of soil suitability as a building material for construction of railway embankments.

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CDSS Tests for Evaluation of Vibration Frequency in Liquefaction Resistance of Silica Sand

Nong

Park

Jiang

2022

Proceedings of the 4th International Conference on Performance Based Design in Earthquake Geotechnical Engineering (Beijing 202

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Cyclic volumetric strain accumulation for sand under drained simple shear condition

Cited by 20 publications

References 52 publications

Analysis of One-Dimensional Compression under a Wide Range of Stress with Densely Arrayed BPM

Analysis of One-Dimensional Compression under a Wide Range of Stress with Densely Arrayed BPM

Laboratory measurements of dispersed soils as construction materials for railway embankments

CDSS Tests for Evaluation of Vibration Frequency in Liquefaction Resistance of Silica Sand

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