Earth Dam on Liquefiable Foundation and Remediation: Numerical Simulation of Centrifuge Experiments
Publication: Journal of Engineering Mechanics
Volume 130, Issue 10
Abstract
A series of four dynamic centrifuge model tests was performed to investigate the effect of foundation densification on the seismic performance of a zoned earth dam with a saturated sand foundation. In these experiments, thickness of the densified foundation layer was systematically increased, resulting in a comprehensive set of dam-foundation response data. Herein, Class-A and Class-B numerical simulations of these experiments are conducted using a two-phase (solid and fluid) fully coupled finite element code. This code incorporates a plasticity-based soil stress–strain model with the modeling parameters partially calibrated based on earlier studies. The physical and numerical models both indicate reduced deformations and increased crest accelerations with the increase in densified layer thickness. Overall, the differences between the computed and recorded dam displacements are under 50%. At most locations, the computed excess pore pressure and acceleration match the recorded counterparts reasonably well. Based on this study, directions for further improvement of the numerical model are suggested.
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References
1.
Adalier, K., and Sharp, M.K. ( 2002a). “Dynamic centrifuge modeling of earth dams on liquefiable ground.” Proc., 3rd U.S.–Japan Workshop on Advanced Research on Earthquake Engineering for Dams, San Diego.
2.
Adalier, K., and Sharp, M.K. ( 2002b). “Embankment dam on liquefiable foundation—Dynamic behavior and densification remediation.” J. Geotech. Eng., in press.
3.
Arulmoli, K., Muraleetharan, K.K., Hossain, M.M., and Fruth, L.S. ( 1992). “VELACS: Verification of liquefaction analyses by centrifuge studies, laboratory testing program, soil data report.” Rep. Project No. 90-0562, The Earth Technology Corporation, Irvine, Calif.
4.
Biot, M. A. (1962). “The mechanics of deformation and acoustic propagation in porous media.” J. Appl. Phys.,33(4), 1482–1498.
5.
Chan, A.H. C. ( 1988). “A unified finite element solution to static and dynamic problems in geomechanics.” PhD dissertation, Univ. College of Swansea, Swansea, U.K.
6.
Chopra, A. K. (1967). “Hydrodynamic pressures on dams during earthquakes.” J. Eng. Mech. Div., 93(6), 205–223.
7.
Dobry, R., Taboada, V., and Liu, L. ( 1995). “Centrifuge modeling of liquefaction effects during earthquakes.” Keynote Lecture, Proc., 1st Intl. Conf. on Earthquake Geotechnical Engineering, IS-Tokyo, K. Ishihara, ed., Vol. 3, Balkema, Rotterdam, The Netherlands, 1291–1324.
8.
Elgamal, A., Parra, E., Yang, Z., and Adalier, K. (2002a). “Numerical analysis of embankment foundation liquefaction countermeasures.” J. Earthquake Eng., 6(4), 447–471.
9.
Elgamal, A., Yang, Z., and Parra, E. (2002b). “Computational modeling of cyclic mobility and post-liquefaction site response.” Soil Dyn. Earthquake Eng., 22(4), 259–271.
10.
Elgamal, A., Yang, Z., Parra, E., and Ragheb, A. (2003). “Modeling of cyclic mobility in saturated cohesionless soils.” Int. J. Plast.,19(6), 883–905.
11.
Finn, W. D.L. (2000). “State-of-the-art of geotechnical earthquake engineering practice.” Soil Dyn. Earthquake Eng., 20, 1–15.
12.
Hall, J. F., and Chopra, A. K. (1982). “Hydrodynamic effects in earthquake response of embankment dams.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng.,108(4), 591–597.
13.
Ishihara, K., Tatsuoka, F., and Yasuda, S. (1975). “Undrained deformation and liquefaction of sand under cyclic stresses.” Soils Found., 15(1), 29–44.
14.
Kramer, S.L. ( 1996). Geotechnical earthquake engineering, Prentice Hall, Upper Saddle River, N.J.
15.
Krinitzsky, E. L., and Hynes, M. E. (2002). “The Bhuj, India, earthquake: lessons learned for earthquake safety of dams on alluvium.” Eng. Geol. (Amsterdam), 66(3–4), 163–196.
16.
Lambe, T.W., and Whitman, R.V. ( 1969). Soil mechanics, Wiley, New York.
17.
Ledbetter, R.H., Liam Finn, W.D., Hynes, M.E., Nickell, J.S., Allen, M.G., and Stevens, M.G. ( 1994). “Seismic safety improvement of mormon island auxiliary dam,” 2nd Seismic Short Course on Evaluation and Mitigation of Earthquake Induced Liquefaction Hazards, Univ. of Southern California, Los Angeles.
18.
Li, X.S., and Ming, H.Y. ( 2001). “Seepage effects on flow deformation of earth dam.” Proc., 2001 Mechanics and Materials Summer Conf., San Diego.
19.
Marcuson, W. F., Hadala, P. F., and Ledbetter, R. H. (1996). “Seismic rehabilitation of earth dams.” J. Geotech. Eng., 122(1), 7–20.
20.
Matsuo, O. (1996). “Damage to river dikes.” Soils Found., 36(1), 235–240.
21.
Parra, E. ( 1996). “Numerical modeling of liquefaction and lateral ground deformation including cyclic mobility and dilation response in soil systems.” PhD thesis, Rensselaer Polytechnic Institute, Troy, N.Y.
22.
Prevost, J. H. (1985). “A simple plasticity theory for frictional cohesionless soils.” Soil Dyn. Earthquake Eng., 4(1), 9–17.
23.
Seed, H. B. (1968). “Landslides during earthquakes due to soil liquefaction.” J. Geotech. Eng. Div., Am. Soc. Civ. Eng., 94(5), 1055–1123.
24.
Seed, H.B. ( 1970). “Soil problems and soil behavior.” Earthquake engineering, R.L. Wiegel, ed., Chap. 10, Prentice‐Hall, Englewood Cliffs, N.J.
25.
Taboada, V.M. ( 1995). “Centrifuge modeling of earthquake-induced lateral spreading in sand using a laminar box.” PhD thesis, Rensselaer Polytechnic Institute, Troy, N.Y.
26.
Tani, S. (1996). “Damage to earth dams.” Soils Found.,36(1), 263–272.
27.
Yang, Z. ( 2000). “Numerical modeling of earthquake site response including dilation and liquefaction.” PhD dissertation, Columbia Univ., New York.
28.
Yang, Z., and Elgamal, A. (2002). “Influence of permeability on liquefaction-induced shear deformation.” J. Eng. Mech., 128(7), 720–792.
29.
Yang, Z., Elgamal, A., Adalier, K., and Sharp, M. ( 2004). “Effect of container boundary on seismic embankment response in centrifuge model tests.” Proc., 11th Int. Conf. on soil Dynamics & Earthquake Engineering and 3rd Int. Conf. on Earthquake Geotechnical Engineering, D. Doolin, A. Kammerer, T. Nogami, R.B. Seed, and I. Towhata, eds., Vol. 1, Univ. of California, Berkeley, Calif. 669–675.
30.
Yang, Z., Elgamal, A., and Parra, E. (2003). “A computational model for cyclic mobility and associated shear deformation.” J. Geotech. Geoenviron. Eng., 129(12), 1119–1127.
31.
Zienkiewicz, O. C., Chan, A. H.C., Pastor, M., Paul, D. K., and Shiomi, T. (1990). “Static and dynamic behavior of soils: a rational approach to quantitative solutions: I. fully saturated problems.” Proc. R. Soc. London, Ser. A, 429, 285–309.
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Published In
Journal of Engineering Mechanics
Volume 130 • Issue 10 • October 2004
Pages: 1168 - 1176
Copyright
Copyright © 2004 ASCE.
History
Published online: Oct 1, 2004
Published in print: Oct 2004
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