Consolidation Properties of Soil Slurries from Hydraulic Consolidation Test
Publication: Journal of Geotechnical and Geoenvironmental Engineering
Volume 123, Issue 8
Abstract
Finite strain consolidation theory is commonly used for the initial design and later reclamation of disposal facilities for highly compressible waste materials such as phosphatic clays, dredgings, and mine tailings. An alternative technique is presented for performing a hydraulic consolidation test to measure the required compressibility and hydraulic conductivity constitutive relationships of such materials. Closed-form equations are derived for the discharge velocity and the distribution of total head, pore pressure, and effective stress at steady flow conditions for a hydraulic consolidation test. A two-stage test procedure is described in which the specimen height and discharge velocity are measured for two successive hydraulic gradients. At the conclusion of the second stage, the distribution of local void ratio is obtained by slicing the specimen. Analysis of the test results has advantages in comparison to other available approaches because specialized numerical procedures are not required to calculate the desired constitutive relationships for a soil specimen. Theoretical predictions from the model are in close agreement with experimental measurements for hydraulic consolidation tests of two clay slurries.
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References
1.
Abu-Hejleh, A. N., Znidarcic, D., and Barnes, B. L.(1996). “Consolidation characteristics of phosphatic clays.”J. Geotech. Engrg., ASCE, 122(4), 295–301.
2.
Aiban, S. A., and Znidarcic, D.(1989). “Evaluation of the flow pump and constant head techniques for permeability measurements.”Geotechnique, London, England, 39(4), 655–666.
3.
Baxter, C. D. P. (1994). “Gradient effects on measured hydraulic conductivity,” MSCE thesis, School of Civ. Engrg., Purdue Univ., West Lafayette, Ind.
4.
Baxter, C. D. P., Fox, P. J., and Leonards, G. A. (1995). “Gradient effects on measured hydraulic conductivity,”Geoenvironment 2000, Vol. 1, Geotech. Spec. Publ. No. 46, Y. B. Acar and D. E. Daniel, eds., ASCE, New York, N.Y., 746–757.
5.
Been, K., and Sills, G. C.(1981). “Self-weight consolidation of soft soils: an experimental and theoretical study.”Geotechnique, London, England, 31(4), 519–535.
6.
Bromwell, L. G. (1984). “Consolidation of mining wastes.”Proc., Symp. on Sedimentation/Consolidation Models: Prediction and Validation, R. N. Yong and F. C. Townsend, eds., ASCE, New York, N.Y., 275–295.
7.
Caldwell, J. A., Ferguson, K., Schiffman, R. L., and van Zyl, D. (1984). “Application of finite strain consolidation theory for engineering design and environmental planning of mine tailings impoundments.”Proc., Symp. on Sedimentation/Consolidation Models: Prediction and Validation, R. N. Yong and F. C. Townsend, eds., ASCE, New York, N.Y., 581–606.
8.
Carrier, W. D. III, Bromwell, L. G., and Somogyi, F.(1983). “Design capacity of slurried mineral waste ponds.”J. Geotech. Engrg., ASCE, 109(5), 699–716.
9.
Daniel, D. E. (1994). “State-of-the-art: laboratory hydraulic conductivity tests for saturated soils.”Hydraulic conductivity and waste containment transport in soil, ASTM STP 1142, D. E. Daniel and S. J. Trautwein, eds., ASTM, West Conshohocken, Pa., 30–78.
10.
Edil, T. B., and Erickson, A. E. (1985). “Procedure and equipment factors affecting permeability testing of a bentonite-sand liner material.”Hydraulic barriers in soil and rock, ASTM STP 874, A. I. Johnson, R. K. Frobel, N. J. Cavalli, and C. B. Pettersson, eds., ASTM, West Conshohocken, Pa., 155–170.
11.
Feldkamp, J. R.(1989). “Permeability measurement of clay pastes by a non-linear analysis of transient seepage consolidation tests.”Geotechnique, London, England, 39(1), 141–145.
12.
Fox, P. J.(1996). “Analysis of hydraulic gradient effects for laboratory hydraulic conductivity testing.”Geotech. Testing J., 19(2), 181–190.
13.
Gibson, R. E., Schiffman, R. L., and Cargill, K. W.(1981). “The theory of one-dimensional consolidation of saturated clays. II. finite nonlinear consolidation of thick homogeneous layers.”Can. Geotech. J., Ottawa, Canada, 18(2), 280–293.
14.
Huerta, A., Kriegsmann, G. A., and Krizek, R. J.(1988). “Permeability and compressibility of slurries from seepage-induced consolidation.”J. Geotech. Engrg., ASCE, 114(5), 614–627.
15.
Imai, G.(1979). “Development of a new consolidation test procedure using seepage force.”Soils and Found., Tokyo, Japan, 19(3), 45–60.
16.
Krizek, R. J., and Somogyi, F. (1984). “Perspectives on modelling consolidation of dredged materials.”Proc., Symp. on Sedimentation/Consolidation Models: Prediction and Validation, R. N. Yong and F. C. Townsend, eds., ASCE, New York, N.Y., 296–332.
17.
Leonards, G. A., and Girault, P. (1961). “A study of the one-dimensional consolidation test.”Proc., 5th Int. Conf. on Soil Mech. and Found. Engrg., Vol. 1, Paris, France, 213–218.
18.
McVay, M., Townsend, F., and Bloomquist, D.(1986). “Quiescent consolidation of phosphatic waste clays.”J. Geotech. Engrg., ASCE, 112(11), 1033–1049.
19.
Olsen, H. W., Nichols, R. W., and Rice, T. L.(1985). “Low gradient permeability measurements in a triaxial system.”Geotechnique, London, England, 35(2), 145–157.
20.
Pane, V., Croce, P., Znidarcic, D., Ko, H.-Y., Olsen, H. W., and Schiffman, R. L.(1983). “Effects of consolidation on permeability measurements for soft clay.”Geotechnique, London, England, 33(1), 67–72.
21.
Schiffman, R. L., Pane, V., and Gibson, R. E. (1984). “The theory of one-dimensional consolidation of saturated clays. IV. an overview of nonlinear finite strain sedimentation and consolidation.”Proc., Symp. on Sedimentation/Consolidation Models: Prediction and Validation, R. N. Yong and F. C. Townsend, eds., ASCE, New York, N.Y., 1–29.
22.
Scully, R. W., Schiffman, R. L., Olsen, H. W., and Ko, H.-Y. (1984). “Validation of consolidation properties of phosphatic clay at very high void ratios.”Proc. Symp. on Sedimentation/Consolidation Models: Prediction and Validation, R. N. Yong and F. C. Townsend, eds., ASCE, New York, N.Y., 158–181.
23.
Somogyi, F., Carrier, W. D. III, Lawver, J. E., and Beckman, J. F. (1984). “Waste phosphatic clay disposal in mine cuts.”Proc., Symp. on Sedimentation/Consolidation Models: Prediction and Validation, R. N. Yong and F. C. Townsend, eds., ASCE, New York, N.Y., 545–564.
24.
Tan, S.-A., Tan, T.-S., Ting, L. C., Yong, K.-Y., Karunaratne, G.-P., and Lee, S.-L.(1988). “Determination of consolidation properties for very soft clay.”Geotech. Testing J., 11(4), 233–240.
25.
Toorman, E. A.(1996). “Sedimentation and self-weight consolidation: general unifying theory.”Geotechnique, London, England, 46(1), 103–113.
26.
Townsend, F. C., and McVay, M. C.(1990). “SOA: large strain consolidation predictions.”J. Geotech. Engrg., ASCE, 116(2), 222–243.
27.
Townsend, F. C., McVay, M. C., Bloomquist, D. G., and McClimans, S. A.(1989). “Clay waste pond reclamation by sand/clay mix or capping.”J. Geotech. Engrg., ASCE, 115(11), 1647–1666.
28.
Znidarcic, D., Croce, P., Pane, V., Ko, H.-Y., Olsen, H. W., and Schiffman, R. L.(1984). “The theory of one-dimensional consolidation of saturated clays: III. existing testing procedures and analyses,”Geotech. Testing J., 7(3), 123–133.
29.
Znidarcic, D., Schiffman, R. L., Pane, V., Croce, P., Ko, H.-Y., and Olsen, H. W.(1986). “The theory of one-dimensional consolidation of saturated clays: Part V. constant rate of deformation testing and analysis.”Geotechnique, London, England, 36(2), 227–237.
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Copyright © 1997 American Society of Civil Engineers.
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Published online: Aug 1, 1997
Published in print: Aug 1997
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