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Unformatted text preview: v , and the vertical permeability of the soil k v . (It may be assumed that the initial slope of a graph of proportional settlement R= ρ / ρ ult against the square root of the time factor T=c v t/d 2 is equal to √ (4/3), ie R = √ (4T/3).) What factors would you take into account in the laboratory determination of E' o c v and k v for use in design? What difficulties might you encounter in attempting to use oedometer test results to predict rates of settlement in the field? [University of London 2nd year BEng (Civil Engineering) examination, Queen Mary and Westfield College (part question)] Q4.4 Solution Plot a graph of settlement against √ time (Figure Q4.4): time t, min 0.25 1 4 9 16 25 36 49 64 81 100 196 settlement ρ , mm .063 .075 .103 .133 .160 .185 .210 .228 .240 .250 .258 .265 t, min 0.5 0.5 1 2 3 4 5 6 7 8 9 10 14...
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This note was uploaded on 12/28/2011 for the course CHM 4302 taught by Professor Stuartchalk during the Fall '11 term at UNF.
 Fall '11
 StuartChalk
 Analytical Chemistry

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