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Title: Centrifuge Model Study of Mixing Quality In Wet Deep Mixing
Authors: CHEN JIAN
Keywords: centrifuge modelling, mixing quality, wet deep mixing
Issue Date: 8-Aug-2012
Citation: CHEN JIAN (2012-08-08). Centrifuge Model Study of Mixing Quality In Wet Deep Mixing. ScholarBank@NUS Repository.
Abstract: Deep Mixing Method (DM) is widely used for in-situ soil treatment. However, the highly variable strength of the DM improved soil remains a problem in construction. In this thesis, based on a large amount of data obtained from a series of centrifuge model tests, several influencing factors to the mixing quality among considerable operational parameters in DM installation are statistical analysed. Moreover, relevant probability tests on the experimental results were carried out. Phase relationships in the DM columns were also discussed. Associated with empirical formula, the relation between binder concentration and unconfined compressive strength was derived. Based on these findings, a statistical model of strength prediction for DM columns was derived. Case study was performed to validate this model. Comparison indicated a reasonable agreement between the model prediction and the field data. However, several discrepancies still exist. The agreement and discrepancy lead to a necessity and confidence for further research.
Appears in Collections:Ph.D Theses (Open)

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