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http://dx.doi.org/10.12989/gae.2012.4.2.079

Assessment of portable traveling pluviator to prepare reconstituted sand specimens  

Dave, Trudeep N. (Dept. of Civil Engg., IIT Bombay)
Dasaka, S.M. (Dept. of Civil Engg., IIT Bombay)
Publication Information
Geomechanics and Engineering / v.4, no.2, 2012 , pp. 79-90 More about this Journal
Abstract
Air pluviation method is widely adopted for preparation of large, uniform and repeatable sand beds of desired densities for laboratory studies to simulate in-situ conditions and obtain test results which are highly reliable. This paper presents details of a portable traveling pluviator recently developed for model sand bed preparation. The pluviator essentially consisted of a hopper, orifice plates for varying deposition intensity, combination of flexible and rigid tubes for smooth travel of material, and a set of diffuser sieves to obtain uniformity of pluviated sand bed. It was observed that sand beds of lower relative density can be achieved by controlling height of fall, whereas, denser sand beds could be obtained by controlling deposition intensity. Uniformity of pluviated sand beds was evaluated using cone penetration test and at lower relative densities minor variation in density was observed with depth. With increase in relative density of sand bed higher repeatability of uniform pluviation was achieved.
Keywords
portable traveling pluviator; deposition intensity; height of fall; sand bed uniformity;
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  • Reference
1 Abbireddy, C.O.R. (2009), "Particle form and its impact on packing and shear behavior of particulate materials", PhD Thesis, School of Civil Engineering and the Environment, University of Southampton.
2 ASTM Standard D4253-06 (2006), "Standard test methods for maximum index density and unit weight of soils using a vibratory table", Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA.
3 ASTM Standard D4254-00 (2006), "Standard test methods for minimum index density and unit weight of soils and calculation of relative density", Annual Book of ASTM Standards, ASTM International, West Conshohocken, PA.
4 Bolton, M.D., Gui, M.W., Garnier, J., Corte, J.F., Bagge, G., Laue, J. and Renzi, R. (1999), "Centrifuge cone penetration tests in sand", Geotechnique, 49(4), 543-552.   DOI
5 Butterfield, R. and Andrawes, K.Z. (1970), "An air activated and spreader for forming uniform sand bed", Geotechnique, 20(1), 97-100.   DOI
6 Chen, H.-T., Lee, C. and Chen, H. (1998), "The traveling pluviation apparatus for sand specimen preparation", Centrifuge 98, Kimura, Kusakabe, and Takemura, Eds., Vol. 1, Balkema, Rotterdam, pp. 143-148.
7 Clayton, C.R.I., Bica, A.V.D. and Moore, S.R. (1994), "A resin impregnation technique for determination of the density variations in completed specimens of dry cohesionless soils", Geotechnique, 44(1), 165-173.   DOI   ScienceOn
8 Cresswell, A, Barton, M.E. and Brown, R. (1999), "Determining the maximum unit weight of sands by pluviation", Geotech. Test. J., 22(4), 324-328.   DOI
9 Dupla, J.C., Canau, J. and Gouvenot, D. (2004), "An advanced experimental set-up for studying a monodirectional grout injection process", Ground Improvement, 8(3), 91-99.   DOI
10 Fretti, C., Lo Presti, D.C.E. and Pedroni, S. (1995), "A pluvial deposition method to reconstitute specimens well-graded sand", Geotech. Test. J., 18(2), 292-298.   DOI   ScienceOn
11 Hsu, H.H. and Hwang, A.B. (1999), "Calibration of cone penetration test in sand", Proc. Natl. Sci. Counc. ROC(A), 23(5), 579-590.
12 Kolbuszewski, J.J. and Jones, R.H. (1961), "The preparation of sand samples for laboratory testing", Proceedings of the Midland Soil Mechanics & Foundation Engineering Society, 4, 107-123.
13 Kuerbis, R. and Vaid, Y.P. (1988), "Sand sample preparation - The slurry deposition method, Soils Found., 8(4), 107-118.
14 Lagioia, R., Sanzeni, A. and Colleselli, F. (2006), "Air, water and vacuum pluviation of sand specimens for the triaxial apparatus", Soils Found., 46(1), 61-67.   DOI   ScienceOn
15 Lo Presti, D.C.F., Pedroni, S. and Crippa, V. (1992), "Maximum dry density of cohesionless soils by pluviation and by ASTM D 4253-83: A Comparative Study", Geotech. Test. J., 15(2), 180-189.   DOI
16 Lo Presti, D.C.F., Berardi, R., Pedroni, S. and Crippa, V. (1993), "A new traveling sand pluviator to reconstitute specimens of well-graded silty sands", Geotech. Test. J., 16(1), 18-26.   DOI   ScienceOn
17 Muira, S. and Toki, S. (1982), "A Sample preparation method and its effect on static and cyclic deformation strength properties of sand", Soils Found., 22(1), 61-77.   DOI
18 Mulilis, J.P., Chan, C.K. and Seed, H.B. (1975), "The effect of method of sample preparation on the cyclic stress-strain behaviour of sand", EERC Report 75-17, University of California, Berkeley.
19 Rad, N.S. and Tumay, M.T. (1987), "Factors affecting sand specimen preparation by raining", Geotech. Test. J., 10(1), 31-37.   DOI   ScienceOn
20 Saussus, D.R., Frost, D. and Ashmawy, A.K. (2000), "Variation in membrane contact patterns of reconstituted sand samples", Geotech. Test. J., 23(4), 522-531.   DOI   ScienceOn
21 Stuit, H.G. (1995), "Sand in the geotechnical centrifuge", Ph.D. thesis, Technische Universiteit Delft, Netherlands.
22 Tatsuoka, F., Maramatsu, M. and Sasaki, T. (1982), "Cyclic undrain stress-strain behaviour of dense sand by torsional simple shear tests", Soils Found., 22(2), 55-70.   DOI
23 Vaid, Y.P. and Negussey, D. (1988), "Preparation of reconstituted sand specimens", Advanced Triaxial Testing of Soil and Rock, ASTM STP 977, ASTM International, West Conshohocken, PA, pp. 405-417.
24 Walker, B.P. and Whitaker, T. (1967), "An apparatus for forming uniform beds of sands for model foundation tests", Geotechnique, 17(2), 161-167.   DOI
25 Wang, S., Luna, R. and Stephenson, R.W. (2011), "A slurry consolidation approach to reconstitute low-plasticity silt specimens for laboratory triaxial testing", Geotech. Test. J., 34(4), 1-9.
26 Kildalen, S. and Stenhamar, P. (1977), "NGI laboratory sand rainer", Internal Report 51505-15, Norwegian Geotechnical Institute.
27 Kolbuszewski, J.J. (1948), "An experimental study of the maximum and minimum porosities of sands", Proceedings of the Second International Conference of Soil Mechanics and Foundation Engineering, Rotterdam, 21-30 June, 1, 158-165.
28 Zhao, Y., Gafar, K., Elshafie, M.Z.E.B., Deeks, A.D., Knappett, J.A. and Madabushi, S.P.G. (2006), "Calibration and use of new automatic sand pourer", Sixth International Conference on Physical Modeling in Geotechnics, Hong Kong, 4-6 August, Taylor & Francis, London, pp. 265-270.