Failure of Tapo Canyon Tailings Dam
Publication: Journal of Performance of Constructed Facilities
Volume 10, Issue 3
Abstract
The failure of the Tapo Canyon tailings dam was one of the most striking failures of an earth structure to result from the January 17, 1994 Northridge, California earthquake. The failure involved a 60-m-wide breach of a tailings dam with a maximum height of 24 m, and 60 and 90 m downstream displacements of two sections of the dam. The failure resulted from liquefaction of the impounded tailings and possibly of the embankment materials. A significant volume of liquefied tailings passed through the breach in flows which extended hundreds of meters downstream within a natural drainage channel. The tailings dam failure, which occurred in a largely undeveloped area, caused no deaths or injuries, but did result in considerable economic losses for the owners of the tailings dam and a downstream water-treatment facility affected by the tailings flow slide. In this paper the writers will outline the construction history and geologic conditions at the site, and describe the strong influence of these factors on the characteristics of the embankment failure.
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References
1.
Agüero, G. (1929). “Formación de depósitosde relavesen el mineral del Teniente.”Anales del Instituto del Ingenieros del Chile, No. 5, 164–187.
2.
Casagrande, A. (1950). “Notes on the design of earth dams.”J., Boston Soc. of Civ. Engrs., (Oct.), 231–255.
3.
Dobry, R., and Alvarez, L.(1967). “Seismic failures of Chilean tailings dams.”J. Soil Mech. and Found. Div., ASCE, 93(6), 237–260.
4.
Fugro, Inc. (1995). “Simi Valley—Northridge Earthquake Study.”Rep. Prepared for City of Simi Valley.
5.
Idriss, I. M. (1991). “Procedures for selecting earthquake ground motions at rock sites.”Rep. Prepared for Nat. Inst. of Standards and Technol., Univ. of California, Davis, Calif.
6.
Ishihara, K. (1984). “Post-earthquake failure of a tailings dam due to liquefaction of the pond deposit.”Proc., Int. Conf. on Case Histories in Geotech. Engrg., Univ. of Missouri-Rolla, St. Louis, Mo., Vol. 3, 1129–1143.
7.
Stewart, J. P., Bray, J. D., Seed, R. B., and Sitar, N. (Eds.). (1994). “Preliminary report on the principal geotechnical aspects of the January 17, 1994 Northridge Earthquake.”Rep. No. UCB/EERC-94/08, Earthquake Engrg. Res. Ctr., Univ. of California, Berkeley, Calif.
8.
Stewart, J. P., Seed, R. B., and Bray, J. D. (1996). “Incidents of ground failure from the Northridge Earthquake.”Bull. Seismic Soc. Am., 86(1B), 5300–5318.
9.
Trifunac, M., Todorovska, M., and Ivanovic, S.(1994). “A note on distribution of uncorrected peak ground accelerations during the Northridge, California Earthquake of 17 January 1994.”Soil Dynamics and Earthquake Engrg., 13(3), 187–196.
10.
Wald, D. J., and Heaton, T. H. (1994). “A dislocation model of the 1994 Northridge, California, Earthquake determined from strong ground motions.”Open File Rep. 94-278, U.S. Geological Survey, Pasadena, Calif.
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Information
Published In
Journal of Performance of Constructed Facilities
Volume 10 • Issue 3 • August 1996
Pages: 109 - 114
Copyright
Copyright © 1996 American Society of Civil Engineers.
History
Published online: Aug 1, 1996
Published in print: Aug 1996
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