Todisco, MC;
Coop, MR;
(2016)
Normalisation techniques for slowly-converging soils.
Procedia Engineering
, 158
pp. 110-115.
10.1016/j.proeng.2016.08.414.
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Abstract
The existence of a unique normal compression, NCL, and critical state line, CSL, for clean sands and clays in the state plane, v-lnp’, is generally assumed. Recently, some soils of either complex grading or mixed mineralogy did not exhibit this convergent type of behaviour in the state plane at typical stress and strain levels. This investigation proposes different normalisation techniques for non-convergent soil mixtures consisting of fractally-graded single mineral sands, either quartz or calcium carbonate, with very large amounts of non-plastic fines. For the mixtures, the typical normalisation techniques do not work because a straight NCL, parallel to the CSL, could be defined only in the region of very low specific volumes and extremely high stress levels. Similarly, a normalisation based on an equivalent pressure p’e,CSL taken on a unique straight CSL could not be applied because of the existence of curved and multiple CSLs.
| Type: | Article |
|---|---|
| Title: | Normalisation techniques for slowly-converging soils |
| Event: | 6th Italian Conference of Researchers in Geotechnical Engineering (CNRIG) - Geotechnical Engineering in Multidisciplinary Research - From Microscale to Regional Scale |
| Location: | Bologna, Italy |
| Dates: | 22 September 2016 - 23 September 2016 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/j.proeng.2016.08.414 |
| Publisher version: | http://doi.org/10.1016/j.proeng.2016.08.414 |
| Language: | English |
| Additional information: | © 2016 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer-review under the responsibility of the organizing and scientific committees of CNRIG2016 doi: 10.1016/j.proeng.2016.08.414 |
| Keywords: | Science & Technology, Technology, Engineering, Geological, Engineering, transitional soils, state boundary surface, fractally-graded sands, TRANSITIONAL BEHAVIOR, SANDS, COMPRESSION, FINES, STATE |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Civil, Environ and Geomatic Eng |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1528698 |
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