Small‐Strain‐Shear Modulus of Soil by Dilatometer
Publication: Journal of Geotechnical Engineering
Volume 116, Issue 11
Abstract
A procedure is presented for estimating the small strain shear modulus of soils based on flat dilatometer (DMT) test results. Previously published data from nine test sites at which both DMT and seismic tests were performed are used to develop a model. The nine sites represent various soil conditions ranging from soft clays to dense, overconsolidated sands. Earlier efforts had sought a relationship between Gmax and either the DMT modulus or the DMT horizontal stress index. The present study shows that a semiempirical expression for Gmax similar to Hardin's equation produces better results for a wider range of soil types. The expression includes terms for the effective confining stresses in the directions of wave propagation and particle motion and the DMT‐based total unit weight as a surrogate for void ratio. The average error between the observed Gm« and that determined by the model was 23%.
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References
1.
Anderson, D. G., Espana, C, and McLamore, V. R. (1978). “Estimating in situ shear moduli at competent sites.” Proc., ASCE Specialty Conf. on Earthquake Engineering and Soil Dynamics, Pasadena, Calif., 181–197.
2.
Baldi, G., et al. (1986). “Flat dilatometer tests in calibration chambers.” Proc., ASCE Specialty Conf. on Use of In‐Situ Tests in Geotechnical Engineering, Blacksburg, Va., 431–446.
3.
Bellotti, R., et al. (1986). “Deformation characteristics of cohesionless soils from in situ tests.” Proc., ASCE Specialty Conf. on Use of In‐Situ Tests in Geotechnical Engineering, Blacksburg, Va., 47–73.
4.
By, T., et al. (1987). “Comparison of UBC's research dilatometer, NGI's offshore dilatometer and Marchetti's standard dilatometer.” Report No. 52157‐3, Norwegian Geotechnical Institute and The University of British Columbia, Oslo, Norway.
5.
Campanella, R. G., Robertson, P. K., and Gillespie, D. G. (1983). “Cone penetration testing in deltaic soils.” Can. Geotech. J., 20(1), 23–35.
6.
Campanella, R. G., et al. (1985). “Recent developments in in situ testing of soils.” Proc., XI Int. Conf. on Soil Mech. and Found. Engrg. (ICSMFE), San Francisco, Calif., 849–854.
7.
Durgonoglu, H. T., and Mitchell, J. K. (1975). “Static penetration resistance of soils—Parts I and II.” Proc., ASCE Specialty Conf. on In‐Situ Measurement of Soil Properties, Raleigh, N.C., 151–189.
8.
Eidsmoen, T., et al. (1985). “Tests with UBC seismic cone at three Norwegian research sites.” Report No. 59040‐1, Norwegian Geotechnical Institute and the University of British Columbia, Oslo, Norway.
9.
Hardin, B. O., and Richart, F. E., Jr. (1963). “Elastic wave velocities in granular soils.” J. Soil Mech. and Found. Engrg. Div., ASCE, 89(1), 33–65.
10.
Hardin, B. O., and Black, W. L. (1968). “Vibration modulus of normally consolidated clay.” J. Soil Mech. and Found. Engrg., ASCE, 94(2), 353–379.
11.
Hardin, B. O. (1978). “The nature of stress strain behavior for soils.” Proc., ASCE Specialty Conf. on Earthquake Engineering and Soil Dynamics, Pasadena, Calif., 3–90.
12.
Hardin, B. O., and Blandford, G. E. (1989). “Elasticity of particulate materials.” J. Geotech. Engrg., ASCE, 115(6), 788–805.
13.
Hryciw, R. D., and Woods, R. D. (1988). “DMT‐cross hole shear correlations.” Proc. First Int. Symp. on Penetration Testing, ISOPT‐1, 527—532.
14.
Hryciw, R. D. (1989). “Raypath curvature in seismic investigations.” J. Geotech. Engrg., ASCE, 115(9), 1268–1284.
15.
Iwasaki, T., and Tatsuoka, F. (1977). “Effects of grain size and grading on dynamic shear moduli of sands.” Soils Found., 17(3), 19–35.
16.
Jaky, J. (1948). “Earth pressures in silos.” Proc. Second Int. Conf. on Soil Mech. and Found. Engrg., Rotterdam, the Netherlands, Vol. 1, 103–107.
17.
Jamiolkowski, M., et al. (1985). “New developments in laboratory and field testing of soils.” Proc., XI ICSMFE, San Francisco, Calif., 57–153.
18.
Jamiolkowski, M., et al. (1988). “New correlations of penetration tests for design practice.” Proc. First Int. Symp. of Penetration Testing, ISOPT‐1, 263–296.
19.
LaCasse, S. (1985). “In situ site investigation techniques and interpretation for offshore practice, dilatometer tests in Onsoy clay.” Report No. 40019‐3, Norwegian Geotechnical Institute, Oslo, Norway.
20.
Lacasse, S., Olsen, T. S., and Vage, T. (1985). “In situ site investigation techniques and interpretation for offshore practice, dilatometer tests in Holmen sand.” Report No. 40019‐4, Norwegian Geotechnical Institute, Oslo, Norway.
21.
Lacasse, S. and Lunne, T. (1989). “Calibration of dilatometer correlations.” Publication No. 177, Norwegian Geotechnical Institute, Oslo, Norway, 1–10.
22.
Marchetti, S. (1980). “In situ tests by flat dilatometer.” J. Geotech. Engrg., ASCE, 106(3), 299–321.
23.
Marchetti, S. (1985). “On the field determination of in sand.” Panel Presentation at the XII ICSMFE, Discussion Session 2A—In Situ Testing Techniques, San Francisco, Calif., 5, 2667–2672.
24.
Marchetti, S., and Crapps;, D. K. (1981). Flat dilatometer manual. GPE Inc., Gainsville, Fla.
25.
Mayne, P. W., and Kulhawy, F. H. (1982). “‐OCR relationships in soil.” J. Geotech. Engrg. Div., ASCE, 108(6), 851–872.
26.
Motan, E. S., and Jacot, B. J. (1987). “Lateral response and earth pressure parameters of cohesionless soils related to flat dilatometer data: A laboratory study.” Transp. Res. Rec, No., 1119, 98–104.
27.
Robertson, P. K., et al. (1986). “Seismic CPT to measure in situ shear wave velocity.” J. Geotech. Engrg., ASCE, 112(8), 791–803.
28.
Robertson, P. K., et al. (1988). “Excess pore pressures and the flat dilatometer test.” Proc. First Int. Symp. on Penetration Testing, ISOPT‐1, 567–576.
29.
Roesler, S. K. (1979). “Anisotropic shear modulus due to stress anisotropy.” J. Geotech. Engrg. Div., ASCE, 105(7), 871–880.
30.
Schmertmann, J. H., ed. (1983). DMT Digest—1B, GPE Inc., Gainesville, Fla.
31.
Schmertmann, I. H., ed. (1986). DMT Digest—7, GPE Inc., Gainesville, Fla.
32.
Schmertmann and Crapps, Inc. (1988). Guidelines for geotechnical design using the Marchetti DMT. Schmertmann and Crapps, Inc., Gainesville, Fla.
33.
Stokoe, K. H., and Ni, S. H. (1985). “Effects of stress state and strain amplitude on shear modulus of dry sand.” Proc. Second Symp. on the Interaction of Non‐Nuclear Munitions with Structures, Panama City Beach, Fla., 407–412.
34.
Thomann, T. G. (1990). “Stiffness changes in cohesionless soils due to stress history and dynamic disturbance,” thesis presented to the University of Michigan, at Ann Arbor, Mich., in partial fulfillment of the requirements for the degree of Doctor of Philosophy.
35.
Yu, P., and Richart, F. E., Jr. (1984). “Stress ratio effects on shear modulus of dry sands.” J. Geotech. Engrg., ASCE, 110(3), 331–345.
Information & Authors
Information
Published In
Journal of Geotechnical Engineering
Volume 116 • Issue 11 • November 1990
Pages: 1700 - 1716
Copyright
Copyright © 1990 ASCE.
History
Published online: Nov 1, 1990
Published in print: Nov 1990
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