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A theoretical model for evaluating the compaction grouting
induced soil strength improvement has been developed based on
the initial void ratio, the compression index, and the
material parameter (Eui/(1+ν)Sui) of the soil before
grouting. The soil strength improved around the compaction
grout bulb increases with the decreasing distance, the
increasing void ratio, the decreasing compressinon index, as
well as the decreasing material parameter. This model has
been satisfactorily verified with the laboratory test sata
obtained in this study and from other independent
investigation.
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