Ice Harbor Dam, Snake River, Washington: Hydraulic Model Investigation PDF Download
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Author: Louis Z. Perkins Publisher: ISBN: Category : Languages : en Pages : 169
Book Description
Flow conditions to be expected during and after construction of Ice Harbor Dam were determined in a 1:100-scale hydraulic model that reproduced 2.7 miles of riverbed, pertinent overbank areas, successive structures, excavated channels, and disposal sites. The purposes of the model study were to check the adequacy of original designs for the project and to develop revisions if required to benefit fish passage, river navigation, energy dissipation, and power generation. Improved designs for the first- and second-stage cofferdams, fishway entrances, powerhouse tailrace, and navigation lock outlet were developed in the model. Diversion of a major portion of the river discharge through three powerhouse skeleton units would facilitate the upstream passage of fish during second-step construction. Alternative methods for operation of the completed project were evaluated. (Author).
Author: Louis Z. Perkins Publisher: ISBN: Category : Languages : en Pages : 169
Book Description
Flow conditions to be expected during and after construction of Ice Harbor Dam were determined in a 1:100-scale hydraulic model that reproduced 2.7 miles of riverbed, pertinent overbank areas, successive structures, excavated channels, and disposal sites. The purposes of the model study were to check the adequacy of original designs for the project and to develop revisions if required to benefit fish passage, river navigation, energy dissipation, and power generation. Improved designs for the first- and second-stage cofferdams, fishway entrances, powerhouse tailrace, and navigation lock outlet were developed in the model. Diversion of a major portion of the river discharge through three powerhouse skeleton units would facilitate the upstream passage of fish during second-step construction. Alternative methods for operation of the completed project were evaluated. (Author).
Author: United States. Army. Corps of Engineers. Seattle District Publisher: ISBN: Category : Channels (Hydraulic engineering) Languages : en Pages : 14
Author: ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OREG DIV OF HYDRAULIC LAB. Publisher: ISBN: Category : Languages : en Pages : 79
Book Description
A three-bay-wide section of the approach channel, spillway and stilling basin, and exit area was reproduced in a 1:40-scale model. Pressures along the center line of a typical spillway bay were satisfactory, but cavitation damage adjacent to stop-log slots in the crest piers was indicated. The spillway design discharge of 850 000 cfs was passed over the crest under a head of 55.5 ft; the computed head was 55.4 ft. Spillway capacity at normal pool elev 440.0 was 684 000 cfs. Use of a sharper exponential curve on the crest pier noses improved but did not eliminate low pressures in the stop-log slots and on adjacent crest areas during the project design discharge. The two pier shapes tested had no significant effect on spillway capacity.
Author: Louis Z. Perkins
Author: Louis Z. Perkins
Author: Louis Z. Perkins
Author: 
Author: Bonneville Hydraulic Laboratory
Author: United States. Army. Corps of Engineers. Seattle District
Author: 
Author: ARMY ENGINEER DIV NORTH PACIFIC BONNEVILLE OREG DIV OF HYDRAULIC LAB.
Author: Alvin J. Chanda
Author: Louis Z. Perkins
Author: Louis Z. Perkins