Abstract
In this study, we conducted a stage loading consolidation test with varying load increment ratio and investigated its effect. By adjusting the primary consolidation ratio of one-dimensional consolidation analysis with secondary consolidation taken into account, it is possible to reproduce the consolidation amount-time curve affected by the load increment ratio.
Highlights
In the incremental loading consolidation test (JIS A 1210), load increment ratio Δp/p is set to 1 and loaded at one-day intervals
As the secondary compression is dominant, the primary consolidation may be less than half of the total consolidation in some cases
Test was performed by varying the load incremental ratio to investigate its effects. It shows that adjusting the primary consolidation ratio of one-dimensional consolidation analysis considering secondary consolidation can reproduce the consolidation-time curve subject to the effect of the load incremental ratio
Summary
In the incremental loading consolidation test (JIS A 1210), load increment ratio Δp/p is set to 1 and loaded at one-day intervals. It has been pointed out that the e-logp curve of the test with varying loading conditions (loading time interval, load increment ratio, and strain rate) varies greatly as shown in Figure 1 (a) and (b)[1,2,3]. Showing the presence of such a resultant sample leads to settlement prediction accuracy. It is a well-known fact that when the increment ratio is small, the consolidation-time curve becomes convex upwards and does not become an inverted S-shaped settlement curve[5]. Test was performed by varying the load incremental ratio to investigate its effects It shows that adjusting the primary consolidation ratio of one-dimensional consolidation analysis considering secondary consolidation can reproduce the consolidation-time curve subject to the effect of the load incremental ratio
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