Calibration and use of a new automatic sand pourer

TY - GEN

T1 - Calibration and use of a new automatic sand pourer

AU - Zhao, Y.

AU - Gafar, K.

AU - Elshafie, M. Z.E.B.

AU - Deeks, A. D.

AU - Knappett, J. A.

AU - Madabhushi, S. P.G.

PY - 2006

Y1 - 2006

N2 - Calibration test results are presented for a new automatic moving-hopper type sand pourer using a multiple-sieving pluviation arrangement, recently commissioned at the University of Cambridge. These results demonstrate its capabilities in preparing uniform sand beds using a typical fine, uniformly graded silica sand, for the purposes of centrifuge and 1-g modeling. Relative densities achieved were between 50 to 90%. The relative density of the sample was found to vary most with the sand flow rate, while varying the drop height has a relatively minor effect. The size and shape of the model container to be filled also has a sizable effect on relative density. Local variation of density along a particular dimension of a container was measured to be within ±4% of the mean value. Sample uniformity was confirmed by in-flight CPT tests.

AB - Calibration test results are presented for a new automatic moving-hopper type sand pourer using a multiple-sieving pluviation arrangement, recently commissioned at the University of Cambridge. These results demonstrate its capabilities in preparing uniform sand beds using a typical fine, uniformly graded silica sand, for the purposes of centrifuge and 1-g modeling. Relative densities achieved were between 50 to 90%. The relative density of the sample was found to vary most with the sand flow rate, while varying the drop height has a relatively minor effect. The size and shape of the model container to be filled also has a sizable effect on relative density. Local variation of density along a particular dimension of a container was measured to be within ±4% of the mean value. Sample uniformity was confirmed by in-flight CPT tests.

UR - https://www.scopus.com/pages/publications/84863229199

UR - https://www.amazon.co.uk/Physical-Modelling-Geotechnics-Proceedings-International/dp/041541587X

M3 - Conference contribution

AN - SCOPUS:84863229199

SN - 041541587X

SN - 9780415415873

VL - 1-2

SP - 265

EP - 270

BT - Physical Modelling in Geotechnics, 6th ICPMG'06 - Proceedings of the 6th International Conference on Physical Modelling in Geotechnics

PB - CRC Press

T2 - 6th International Conference on Physical Modelling in Geotechnics, ICPMG'06

Y2 - 4 August 2006 through 6 August 2006

ER -