Probabilistic design of ground improvement by vertical drains for soil of spatially variable coefficient of consolidation |
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Authors: | Md. Wasiul Bari Mohamed A. Shahin |
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Affiliation: | 1. Department of Civil Engineering, Rajshahi University of Engineering and Technology, Rajshahi 6204, Bangladesh;2. Department of Civil Engineering, Curtin University, WA 6845, Australia |
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Abstract: | The design of soil consolidation via prefabricated vertical drains (PVDs) has been traditionally carried out deterministically and thus can be misleading due to the ignorance of the uncertainty associated with the inherent variability of soil properties. To treat such uncertainty in the course of design of soil improvement by PVDs, more rational probabilistic methods are necessary. In this paper, a simplified probabilistic method is proposed in which the inherent variability of the coefficient of consolidation, which is the most significant uncertain soil parameter that affects the consolidation process, is considered. An easy-to-use design procedure and charts are provided for routine use by practitioners. |
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Keywords: | Probabilistic design Soil consolidation Vertical drains Soil spatial variability |
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