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DC Field | Value | Language |
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dc.contributor.author | Houzhen, W | - |
dc.contributor.author | Zhao, T | - |
dc.contributor.author | Qingshan, M | - |
dc.contributor.author | Xinzhi, W | - |
dc.contributor.author | Bin, Z | - |
dc.date.accessioned | 2020-01-08T15:41:35Z | - |
dc.date.available | 2020-01-08T15:41:35Z | - |
dc.date.issued | 2020-01-28 | - |
dc.identifier | ORCID iD: Tao Zhao https://orcid.org/0000-0003-2828-6314 | - |
dc.identifier | ORCID iD: Xinzhi Wang https://orcid.org/0000-0002-9106-2615 | - |
dc.identifier.citation | Houzhen, W. et al. (2020) 'Quantifying the morphology of calcareous sands by dynamic image analysis', International Journal of Geomechanics, 20 (4), pp. 1 - 11. doi: 10.1061/(ASCE)GM.1943-5622.0001640. | en_US |
dc.identifier.issn | 1532-3641 | - |
dc.identifier.uri | https://bura.brunel.ac.uk/handle/2438/19949 | - |
dc.description | Data Availability Statement: All data generated during the study are available from the corresponding author by request. | - |
dc.description.abstract | It is commonly accepted that the macroresponse of soil depends significantly on the microscopic particle characteristic features, such as size, shape, and roughness. These parameters can be obtained readily by dynamic image analysis of each individual particle, enabling the quantification of particle morphologies. This study investigated the variation of calcareous sand morphology before and after the one-dimensional normal compression. The tests employed a large oedometer cell (231.6-mm inner diameter and 155-mm height) and coarse calcareous particles (10?20 mm). It was found that samples of different particle shape mixtures have almost the same compressibility due to continuous breakage and gradual fining of coarse sand particles. The particle breakage can be effectively quantified by the change of total particle perimeters in the dynamic image analysis. The mixture of branched particles in blocky sands can effectively increase the particle breakage factor because the branched structure can be easily crushed due to localized stresses during the compression. The breakage of coarse particles can produce a large number of fine particles with an exponential frequency distribution (by number). These fine particles generally are more elongated and flatter than the coarser particles. After the compression tests, all particles tended to be slightly smoother and more spherical, due mainly to the particle asperity damage. In particular, the rounded (spherical) particles were much smoother than the angular ones. The relevance of particle morphology change to geotechnical engineering practice also is established. | - |
dc.description.sponsorship | Strategic Priority Research Program of the Chinese Academy of Sciences (grant XDA19060301 and grant XDA13010200), the National Natural Science Foundation of China (grant 41877260, 41877267 and 41602289). | en_US |
dc.format.extent | 1 - 11 | - |
dc.format.medium | Print-Electronic | - |
dc.language.iso | en | en_US |
dc.publisher | American Society of Civil Engineers | en_US |
dc.rights | Copyright © 2020 American Society of Civil Engineers. This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at https://ascelibrary.org/doi/10.1061/%28ASCE%29GM.1943-5622.0001640 (see: https://ascelibrary.org/page/informationforasceauthorsreusingyourownmaterial). | - |
dc.rights.uri | https://ascelibrary.org/page/informationforasceauthorsreusingyourownmaterial | - |
dc.subject | Particle morphology | en_US |
dc.subject | calcareous sand | en_US |
dc.subject | normal compression | en_US |
dc.subject | particle breakage | en_US |
dc.title | Quantifying the morphology of calcareous sands by dynamic image analysis | en_US |
dc.type | Article | en_US |
dc.identifier.doi | https://doi.org/10.1061/(ASCE)GM.1943-5622.0001640 | - |
dc.relation.isPartOf | International Journal of Geomechanics | - |
pubs.issue | 4 | - |
pubs.publication-status | Published | - |
pubs.volume | 20 | - |
dc.identifier.eissn | 1943-5622 | - |
dc.rights.holder | American Society of Civil Engineers | - |
Appears in Collections: | Dept of Civil and Environmental Engineering Research Papers |
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FullText.pdf | Copyright © 2020 American Society of Civil Engineers. This material may be downloaded for personal use only. Any other use requires prior permission of the American Society of Civil Engineers. This material may be found at https://ascelibrary.org/doi/10.1061/%28ASCE%29GM.1943-5622.0001640 (see: https://ascelibrary.org/page/informationforasceauthorsreusingyourownmaterial). | 1.22 MB | Adobe PDF | View/Open |
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