Proceedings of the Korean Geotechical Society Conference (한국지반공학회:학술대회논문집)
- 2008.10a
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- Pages.1115-1123
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- 2008
Suggestion of Modified Compression Index for secondary consolidation using by Nonlinear Elasto Viscoplastic Models
비선형 점탄소성 모델을 이용한 2차압밀이 포함된 수정압축지수개발
- Choi, Bu-Sung (Dept. of Civil Engineering, Pusan University) ;
- Im, Jong-Chul (Dept. of Civil Engineering, Pusan University) ;
- Kwon, Jung-Keun (Dept. of Civil Engineering, Pusan University)
- Published : 2008.10.10
Abstract
When constructing projects such as road embankments, bridge approaches, dikes or buildings on soft, compressible soils, significant settlements may occur due to the consolidation of these soils under the superimposed loads. The compressibility of the soil skeleton of a soft clay is influenced by such factors as structure and fabric, stress path, temperature and loading rate. Although it is possible to determine appropriate relations and the corresponding material parameters in the laboratory, it is well known that sample disturbance due to stress release, temperature change and moisture content change can have a profound effect on the compressibility of a clay. The early research of Tezaghi and Casagrande has had a lasting influence on our interpretation of consolidation data. The 24 hour, incremental load, oedometer test has become, more or less, the standard procedure for determining the one-dimensional, stress-strain behavior of clays. An important notion relates to the interpretation of the data is the ore-consolidation pressure