1-D intrinsic compression curves for settlement analysis of soft clays
1-D intrinsic compression curves for settlement analysis of soft clays
Settlements in soils occur due to changes in effective stress (instant settlements) and creep in time during and after application of the effective stress changes (delayed settlements). In soft clays, the delayed settlement can be significant and must be accounted for. This paper presents a settlement analysis method that accounts for both instant and delayed components. Relations between accumulated creep strain, apparent age of the soil layer and the pre-consolidation stress due to creep are established as 1-D Intrinsic Compression Curves (1-D ICC). The paper describes the parameters used with the 1-D ICC method and how they can be determined from the constant rate of strain (CRS) oedometer tests including a creep phase. The construction and the use of 1-D ICC method to model the settlement development with time during and after consolidation process are also presented.
Corneliu Athanasiu; Anteneh Biru Tsegaye; Erik Ravik Sorlie; K. E. L. Johnsen
18th European Conference on Soil Mechanics and Geotechnical Engineering (ECSMGE2024)
A - New developments on structural design
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