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Title: Hyperbolic method for settlements in clays with vertical drains
Authors: Siew-Ann Tan 
Issue Date: 1994
Citation: Siew-Ann Tan (1994). Hyperbolic method for settlements in clays with vertical drains. Canadian Geotechnical Journal 31 (1) : 125-131. ScholarBank@NUS Repository.
Abstract: Estimation of the total primary settlement is critical in determining when the required compression has been achieved and a surcharge loading can be removed. Conventionally, the total primary settlement is predicted using laboratory-determined compressibility data. In this paper, the hyperbolic-fitting method is extended to the case of consolidation with combined vertical and radial flow, which occurs when vertical drains are used to speed consolidation. Solutions are presented for the slope of the first linear segments between the 50 and 90% settlement points of the theoretical hyperbolic plots (time/settlement versus time). The proposed hyperbolic-fitting method was tested using data from the case history of the Changi Airport field test in Singapore, where Geodrains and sand drains were used for soil improvement following land reclamation and prior to airfield pavement construction. -from Author
Source Title: Canadian Geotechnical Journal
ISSN: 00083674
Appears in Collections:Staff Publications

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