Case Study: Dam Safety during Construction, Lessons of the Overtopping Diversion Works at Aguamilpa Dam
Publication: Journal of Hydraulic Engineering
Volume 132, Issue 11
Abstract
A study on risk analysis by overtopping of the diversion works of Aguamilpa Dam in Mexico was carried out to examine the overtopping event of January, 1992. Specifically, this study focuses on the upstream water surface elevation during the flood considering the tunnel discharge actual width and roughness. During this maximum flow event, the upstream cofferdam was overtopped and the discharge tunnels exceeded their maximum hydraulic capacity. The risk analysis was made considering the original hydrologic data (until 1992), the final constructed conditions, to establish a performance function that compares the risk of original deterministic analysis with a probabilistic analysis made in 1992. The study also focuses on practical improvements in the construction stage of tunnels; like lining the floor with hydraulic concrete and shotcrete in vaults and walls, that improves the safety of dams during construction and increases the real return period. The work here is presented as a case study because of the unique large-scale flow conditions that are registered in diversion works of dams.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
The writer is grateful to the anonymous reviewers for their helpful comments.
References
Australian National Committee on Large Dams. (1994). “Guidelines on risk assessment 1994.” Australia.
Bowles, D. S., Anderson, L. R., and Glover, T. V. (1997). “A role of risk assessment in dam safety management.” Proc., Hydropower 97, Balkema, Rotterdam, The Netherlands.
Bureau of Reclamation. (1989). “Policy and procedures for dam safety modification decision-making.” Denver.
Comisión Federal de Electricidad (CFE). (1994). “Memoria descriptiva de las Obras de Desvío, P. H. Aguamilpa.” Internal Rep., Mexico (in Spanish).
Fahlbusch, F. E. (1999a). “Spillway design floods and dam safety.” Hydropower and Dams, Issue Four, 125.
Fahlbusch, F. E. (1999b). ”Spillway design floods and dam safety.” Hydropower and Dams, Issue Four, 126.
Fell, R. (1997). “Essential components of risk assessment for dams.” Proc., Workshop on Risk-Based Dam Safety Evaluation, Trondheim, Norway.
Hoeg, K. (1998). ”New dam safety legislation and the use of risk analysis.” Hydropower and Dams, Issue Five.
Hydropower andDams. (1997). ”Risk-based dam safety evaluation.” Rep. of Workshop, Trondheim, Norway.
Marengo, H. (1994). “Análisis de Riesgo de Falla en Presas de Tierra y Enrocamiento ante Avenidas.” Doctoral thesis, Facultad de Ingeniería, UNAM, Mexico, 102–107 (in Spanish).
McCann, M. W. (1997). “National performance of dams program report.” Rep. Prepared for Stanford Univ., Stanford, Calif.
Ooshuizen, C., and Elges, H. F. W. K. (1998). “Risk analysis of dams in South Africa.” Dam safety, Berga, ed., Balkema, Rotterdam, The Netherlands.
Salmon, G. M., and Hartford, D. N. D. (1995). “Risk analysis for dams.” Proc., Seminar and Workshop on Risk-Based Dam Safety Evaluation, Vancouver, Canada.
Silveira, A. (1990). “Some considerations on the durability of dams.” Water Power and Dam Construction, February, 19–28.
Tang, W. (1984). “Probability concepts in engineering planning and design.” Decision, risk, and reliability, Vol. II, Wiley, New York, 335.
U.S. Army Corps of Engineers (USACE). (1996). “Risk-based analysis for flood damage reduction studies.” EM. 1110-2-1619, Washington, D.C.
Vrijling, J. K., Hauer, M., and Jorissen, R. E. (1996). “Probabilistic design and risk assessment of large dams.” Publication of the faculty of the civil engineering, TU, Delft, The Netherlands.
World Commission on Dams. (2000). “Dams and development.” World Commission on Dams Rep., Earthscan Publications Ltd, U.K.
Information & Authors
Information
Published In
Copyright
© 2006 ASCE.
History
Received: Nov 12, 2003
Accepted: Feb 7, 2006
Published online: Nov 1, 2006
Published in print: Nov 2006
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.