Test on Creep Characteristics of Remolded Loess Under High Stress
Journal Title: 河南科技大学学报（自然科学版） - Year 2018, Vol 39, Issue 3
Abstract
The high loess-filled embankment in Yan'an area was taken as research object. The high pressure consolidation creep tests were carried out under the control of moisture content and compaction degree. Theeffects of initial moisture content, compaction degree and consolidation pressure on the creep characteristics of the remolded loess were studied. A creep model that suitable for describing the post-construction settlement of high loess-filled embankment in Yan'an area was obtained by using logarithmic function fitting. The results show that the creep of soil is reduced by decreasing initial moisture content or increasing compaction degree, so the post-construction settlement of high loess-filled embankment is controlled better. With the increase of consolidation pressure, the samples need more time to reach stability. Under the condition of maximum consolidation pressure ( 2 400 kPa) , the stability time of creep is about 4 times as much as that under the low consolidation pressure ( 100 kPa) . The creep characteristics of high loess-filled embankment in Yan'an area can be reflected better by the constitutive model.
Authors and Affiliations
Jinhua LI, Huaqiang FANG, Shide WU
Keywords
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