Optimizing River Diversion under Hydraulic and Hydrologic Uncertainties
Publication: Journal of Water Resources Planning and Management
Volume 120, Issue 1
Abstract
Flood diversion during dam construction has a major influence on the construction period, and its cost represents a significant part of the total project cost. In general, selection of diversion system capacity and the dimension of the system component are socioeconomic and technical decisions. Quantifying uncertainties is an important problem in risk‐based design of hydraulic structures. This paper presents an optimization model of river diversion that incorporates the uncertainty of the flood magnitude estimator and the hydraulic uncertainties. Confidence interval for the design flood considers the uncertainty associated with an estimated skew coefficient. For hydraulic uncertainties a first‐order second‐moment analysis is carried out. The diversion design flood and the dimensions of the system components are explicitly treated as decision variables. To study its usefulness, the model is applied to the Karoon Dam site, which is now under the design phase in southern Iran. Results show that the model is a promising tool that could be used efficiently as a design aid.
Get full access to this article
View all available purchase options and get full access to this article.
References
1.
Afshar, A. (1987). Design of hydraulic structures for small dams. Univ. of Science and Technology Press, Tehran, Iran.
2.
Afshar, A., and Mariño, M. A. (1990a). “Determining optimum spillway capacity based on estimated flood distribution.” Water Power and Dam Constr., 42(11), 44–53.
3.
Afshar, A., and Mariño, M. A. (1990b). “Optimizing spillway capacity with uncertainty in flood estimator.” J. Water Resour. Plng. and Mgmt., ASCE, 116(1), 71–84.
4.
Ang, A. H.‐S., and Tang, W. H. (1975). Probability concepts in engineering, planning and design: Vol. I, Basic Principles. John Wiley & Sons, New York, N. Y.
5.
Barkhordary, A., and Afshar, A. (1992). River diversion optimization under hydraulic and hydrologic uncertainties. Dept. of Civ. Engrg., Univ. of Science and Technology, Tehran, Iran.
6.
Chowdhury, J. U., and Stedinger, J. R. (1991). “Confidence interval for design floods with estimated skew coefficient.” J. Hydr. Engrg., ASCE, 117(7), 811–831.
7.
Corry, M. L., Jones, J. S., and Thompson, D. L. (1980). “The design of encroachments of floodplains using risk analysis.” Hydr. Engrg. Circular 17, U.S. Dept. of Transp., Federal Hwy. Admin., Washington, D.C.
8.
Hu, S. (1987). “Determination of confidence intervals for design floods.” J. Hydro., 96(1–4), 201–213.
9.
Huanxion, X., and Sheng, S. (1990). “On standard of river diversion during construction.” Proc. Int. Symp. on Water Resour. Syst. Applic., Univ. of Manitoba, Winnipeg, Manitoba, Canada.
10.
Karoon III reservoir reports. (1990). Mahab Ghodds Consulting Engineers, Tehran, Iran.
11.
Kite, G. W. (1975). “Confidence limit for design events.” Water Resour. Res., 11(1), 48–53.
12.
McCann, M. M. Jr., Franzini, J. B., and Shah, H. C. (1984). Preliminary safety evaluation of existing dams. Vol. 1, Federal Emergency Mgmt. Agency, Washington, D.C.
13.
Pate‐Cornell, M. E., and Tagaras, G. (1986). “Risk costs for new dams: Economic analysis and effects of monitoring.” Water Resour. Res., 22(1), 5–14.
14.
Proc. 11th Congress. (1973). Int. Congr. on Large Dams, Madrid, Spain.
15.
Resendiz‐Carrillo, D., and Lave, L. B. (1987). “Optimizing spill capacity with an estimated distribution of floods.” Water Resour. Res., 23(11), 2043–2049.
16.
Rundgren, L. (1973). “Design floods and accepted risk of failure.” Proc. of Int. Congr. on Large Dams, Q41, R. 11, Madrid, Spain.
17.
Smith, A. (1983). Civil engineering systems. John Wiley & Sons, New York, N. Y.
18.
Stedinger, J. R. (1983). “Confidence intervals for design events.” J. Hydr. Engrg., ASCE, 109(1), 13–27.
19.
Tang, W. H., Mays, L. W., and Yen, B. C. (1975). “Optimal risk‐based design of storm sewer networks.” J. Envir. Engrg., ASCE, 103(3), 381–398.
20.
Tung, Y. K. (1987). “Effects of uncertainties on optimal risk‐based design of hydraulic structures.” J. Water Resour. Plng. and Mgmt., ASCE, 113(5), 709–722.
21.
Tung, Y. K., and Mays, L. W. (1982). “Optimal risk‐based hydraulic design of flood levee systems.” Water Resour. Res., 17(4), 843–852.
22.
Watt, W. E., and Wilson, K. C. (1978). “Allowance for risk and uncertainty in the optimal design of hydraulic structures.” Proc. Int. Symp. on Risk and Reliability in Water Resour., Univ. of Waterloo, Waterloo, Ontario, Canada.
Information & Authors
Information
Published In
Journal of Water Resources Planning and Management
Volume 120 • Issue 1 • January 1994
Pages: 36 - 47
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Sep 16, 1991
Published online: Jan 1, 1994
Published in print: Jan 1994
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.