中南大学学报(英文版)
中南大學學報(英文版)
중남대학학보(영문판)
JOURNAL OF CENTRAL SOUTH UNIVERSITY OF TECHNOLOGY(ENGLISH EDITION)
2014年
4期
1594-1599
,共6页
徐浩峰%应宏伟%谢新宇%谢康和
徐浩峰%應宏偉%謝新宇%謝康和
서호봉%응굉위%사신우%사강화
muddy clay%gas bubble%consolidation%effective stress%unsaturated soil
In order to found an applicable equation of consolidation for gassy muddy clay, an effective stress formula of gas-charged nearly-saturated soils was introduced. And then, a consolidation equation was derived. Subsequently, supposing soils were under tangential loading, the expressions of pore water pressure were presented. The analytic solution of pore water pressure was attempted to be validated by the measured values in a real embankment. The parameters in the expressions of pore water pressure were gotten by the method of trial. The result shows that the consolidation model is rational and the analytic solution of pore water pressure is correct. The following conclusions can be made:1) the influence of bubbles on the compressibility of pore fluid should be considered;2) the effective stress would be influenced by bubbles, and the consolidation would depend on the compressibility of soil skeleton:the softer the soils are, the more distinct the influence of bubbles is;for normal clay, the influence of bubbles on the effective stress may be commonly neglected.