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Author : Louis Z. Perkins
Publisher :
Page : 120 pages
File Size : 45,29 MB
Release : 1974
Category : Columbia River Watershed
ISBN :
Author :
Publisher :
Page : 0 pages
File Size : 40,24 MB
Release : 1974
Category :
ISBN :
Two sectional models were used to check performance of the proposed spillway for John Day Dam and to develop improvements if necessary. A three-bay section of the 20-bay spillway was studied in a 1:41.14-scale model. A two-bay section of the 17 low bays to be used during second-step construction was reproduced in a 1:24-scale model. Modifications of the crest piers to reduce the danger of cavitation during unusually large spillway flows were recommended. Discharge ratings in the three-bay model indicated that capacity of the spillway was slightly greater than computed for the design flow of 2,250,000 cfs. A 185-ft-long stilling basin at elev 114 performed as well as a 210-ft-long basin at elev 118. Three 10-ft-high baffle piers produced desired flow conditions in bay 2 of the stilling basin.
Author :
Publisher :
Page : 0 pages
File Size : 49,89 MB
Release : 1974
Category :
ISBN :
Two sectional models were used to check performance of the proposed spillway for John Day Dam and to develop improvements if necessary. A three-bay section of the 20-bay spillway was studied in a 1:41.14-scale model. A two-bay section of the 17 low bays to be used during second-step construction was reproduced in a 1:24-scale model. Modifications of the crest piers to reduce the danger of cavitation during unusually large spillway flows were recommended. Discharge ratings in the three-bay model indicated that capacity of the spillway was slightly greater than computed for the design flow of 2,250,000 cfs. A 185-ft-long stilling basin at elev 114 performed as well as a 210-ft-long basin at elev 118. Three 10-ft-high baffle piers produced desired flow conditions in bay 2 of the stilling basin.
Author : Alvin J. Chanda
Publisher :
Page : 88 pages
File Size : 48,73 MB
Release : 1974
Category : Columbia River Watershed
ISBN :
Author :
Publisher :
Page : 318 pages
File Size : 47,84 MB
Release : 1984
Category : Dams
ISBN :
Author : M. M. Kubo
Publisher :
Page : pages
File Size : 45,55 MB
Release : 1983
Category : Fishways
ISBN :
Author : United States. Superintendent of Documents
Publisher :
Page : pages
File Size : 19,91 MB
Release : 1985
Category : Government publications
ISBN :
February issue includes Appendix entitled Directory of United States Government periodicals and subscription publications; September issue includes List of depository libraries; June and December issues include semiannual index
Author : Pauline H. Gurewitz
Publisher :
Page : 404 pages
File Size : 48,91 MB
Release : 1980
Category : Hydraulic engineering
ISBN :
Author : United States. National Bureau of Standards
Publisher :
Page : 402 pages
File Size : 23,22 MB
Release : 1978
Category : Hydraulic engineering
ISBN :
Author :
Publisher :
Page : 208 pages
File Size : 11,67 MB
Release : 1959
Category : Weights and measures
ISBN :