Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/121751
Title: SPATIAL VARIABILITY IN CEMENT-TREATED MARINE CLAY – A FIELD DATA STUDY
Authors: JIANG YIJIE
Keywords: spatial variability, cement-treated soil, field data, strength, sample size
Issue Date: 13-Aug-2015
Citation: JIANG YIJIE (2015-08-13). SPATIAL VARIABILITY IN CEMENT-TREATED MARINE CLAY – A FIELD DATA STUDY. ScholarBank@NUS Repository.
Abstract: The spatial variability of cement-treated clay is a common concern in geotechnical engineering. This study focuses on the spatial variability of soil resulting from deep cement mixing (DCM). Firstly, by back-analysis of the field data from Marina One and Marina Bay Financial Centre (MBFC) in Singapore, it shows that various in-situ water content and dispersed curing duration from DCM to testing are two possible causes of variability. Secondly, based on generalized hyperbolic relationship (Xiao et al., 2014) a two-parameter model was established to predict the probability density function (PDF), mean, variance and auto-correlation structure of 28-day equivalent unconfined compressive strength (UCS) in cement-treated soil. The precision of prediction was examined by comparing predicted results with measured one. Finally, in order to characterize soil properties with small amount of data, the reliability of three proposed robust criteria was examined by Mont-Carlo simulation and Bootstrapping method. Recommendation was made based on stability and consistency of results.
URI: http://scholarbank.nus.edu.sg/handle/10635/121751
Appears in Collections:Master's Theses (Open)

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