guidelines for calculating and routing a dam-break flood · 2013-02-23 · guidelines for...
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Guidelines for Calculating and Routing a Dam-Break Flood January 1977 Approved for Public Release. Distribution Unlimited. RD-5
US Army Corps of Engineers Hydrologic Engineering Center
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Standard Form 298 (Rev. 8/98) Prescribed by ANSI Std. Z39-18
REPORT DOCUMENTATION PAGE Form Approved OMB No. 0704-0188
The public reporting burden for this collection of information is estimated to average 1 hour per response, including the time for reviewing instructions, searching existing data sources, gathering and maintaining the data needed, and completing and reviewing the collection of information. Send comments regarding this burden estimate or any other aspect of this collection of information, including suggestions for reducing this burden, to the Department of Defense, Executive Services and Communications Directorate (0704-0188). Respondents should be aware that notwithstanding any other provision of law, no person shall be subject to any penalty for failing to comply with a collection of information if it does not display a currently valid OMB control number. PLEASE DO NOT RETURN YOUR FORM TO THE ABOVE ORGANIZATION. 1. REPORT DATE (DD-MM-YYYY) January 1977
2. REPORT TYPE Research Document
3. DATES COVERED (From - To)
5a. CONTRACT NUMBER
5b. GRANT NUMBER
4. TITLE AND SUBTITLE Guidelines for Calculating and Routing a Dam-Break Flood
5c. PROGRAM ELEMENT NUMBER
5d. PROJECT NUMBER 5e. TASK NUMBER
6. AUTHOR(S) David L. Gundlach, William A. Thomas
5F. WORK UNIT NUMBER
7. PERFORMING ORGANIZATION NAME(S) AND ADDRESS(ES) US Army Corps of Engineers Institute for Water Resources Hydrologic Engineering Center (HEC) 609 Second Street Davis, CA 95616-4687
8. PERFORMING ORGANIZATION REPORT NUMBER RD-5
10. SPONSOR/ MONITOR'S ACRONYM(S) 9. SPONSORING/MONITORING AGENCY NAME(S) AND ADDRESS(ES) 11. SPONSOR/ MONITOR'S REPORT NUMBER(S)
12. DISTRIBUTION / AVAILABILITY STATEMENT Approved for public release; distribution is unlimited. 13. SUPPLEMENTARY NOTES . 14. ABSTRACT This report describes procedures necessary to calculate and route a dam-break flood using an existing generalized unsteady open channel flow model. The recent Teton Dam event was reconstituted to test the model's performance on such a highly dynamic wave. The procedures outlined relate, primarily, to require some further research and programming to improve the applicability of the program to dam-break flood events. The special project memo established four objectives for this study. The first two, (1) level of accuracy of existing techniques, and (2) sensitivity of calculated results to n-values and breach size, were summarized and presented in detail in Appendix A of this document. The third objective, (3) description of physical phenomena controlling depth and travel time and a discussion of pertinent field data, wasp resented in the body of this report. The fourth objective, (4) documentation of the methodology, was included in Appendix B of this document. Computer programs utilized in the methodology may be obtained from the Hydrologic Engineering Center. The computer program was applied to the Teton Dam data set to demonstrate the level of accuracy one might expect in such analyses. The results were shown and, in general, appear reasonable. 15. SUBJECT TERMS dam failure ,flood profiles, model studies, waves (water), open channel flow, flood routing, mathematical models, analytical techniques, analysis, hydrographs, hydrograph analysis, water levels, discharge (water), reservoirs, peak discharge, rupturing, unsteady flow, steady flow, Teton Dam 16. SECURITY CLASSIFICATION OF: 19a. NAME OF RESPONSIBLE PERSON a. REPORT U
b. ABSTRACT U
c. THIS PAGE U
17. LIMITATION OF ABSTRACT UU
18. NUMBER OF PAGES 64 19b. TELEPHONE NUMBER
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Guidelines for Calculating and Routing a Dam-Break Flood
January 1977 US Army Corps of Engineers Institute for Water Resources Hydrologic Engineering Center 609 Second Street Davis, CA 95616 (530) 756-1104 (530) 756-8250 FAX www.hec.usace.army.mil RD-5
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