Hydraulic investigations: Bull.1. Model studies of spillways. Bull.2. Model studies of penstocks and outlet works. Bull.3. Studies of crests for overfall dams. Bull.4. Model studies of Imperial Dam, desilting works, all-American canal structures

Front Cover
United States Department of the Interior, Bureau of Reclamation, 1938 - Arch dams
 

Selected pages

Contents

Profiles of water and sand surfaces for Imperial Dam stilling pool
9
Piezometer pressures and surface profile for recommended stilling basin
10
CHAPTER IISPILLWAY STUDIES
11
Some sills and stepped aprons studied for spillway stilling pool
12
Additional sills and stepped aprons studied for spillway stilling pool
13
Water surface and pressure profiles for preliminary design of spillway
14
Water surface and pressure profiles for final design of spillway
15
Coefficient and discharge curves Imperial Dam spillway
16
Original design of Imperial Dam sluiceway
17
Some stepped aprons and sills studied for stilling pool of sluiceway
18
Additional stepped aprons and sills studied for stilling pool of sluiceway
19
Typical stillingpool tests on sluiceway of Imperial
20
Sections of Imperial Dam sluicewayfinal design
21
FINAL STILLINGPOOL TESTS
22
Model tests of final design sluiceway for Imperial
23
Water surface and pressure profiles on face of Imperial Dam sluiceway Page III
24
14
26
25
27
Modifications of preliminary design
30
The doublejump pool
38
43
44
Discharge curves for final design of Imperial Dam sluiceway
45
CHAPTER IVALLAMERICAN CANAL HEADGATE
47
Model of revised design headgate for AllAmerican Canal
49
Apron lip additions to AllAmerican Canal headgates
51
Headgate stillingpool shapes investigated for AllAmerican Canal
53
Final design stilling pool for AllAmerican Canal headgate structure
54
Pressures on AllAmerican Canal headgate by hydraulic and electricanalogy tests
55
Calibration of roller gate
56
Calibration curves for AllAmerican Canal headgates
57
Drain riser pipe channel and ejector in Imperial
60
Layout of Imperial Dam ejector model at Fort Collins
61
The original model
62
Imperial Dam ejector modelsseries
64
Results from series F and series M Imperial Dam ejectors
65
Imperial Dam ejector modelsseries M
68
The final ejector design
69
Recommended design of ejector for Imperial
70
Imperial Dam hydraulic percolation model
73
Percolation and uplift pressures under Imperial Dam 41 Diagram of saltsolution electric analogyImperial Dam
75
The saltsolution electric analogy apparatus
76
SEDIMENT PROBLEMS OF THE RESERVOIR AND ALLAMERICAN
87
The Imperial Dam model in operation at Montrose
89
Comparison of bed materials for studies of Imperial
91
Figure Page 49 Sixhour deposition below headgates of AllAmerican Canal
96
Some trashracks and training dikes studied for Imperial Dam
98
Additional trashracks and training dikes studied for Imperial Dam
100
Models of trashracks and training dikes for AllAmerican Canal headgates
101
PROBLEMS OF THE ALLAMERICAN CANAL DESILTING WORKS
102
Approach channels to Imperial Dam and AllAmerican Canal
103
Models for silt studies of AllAmerican Canal
104
Results of tests on diagonal scrapers
108
The model tests
109
Details and flow conditions through influent slots of desilting works
111
Details and flow conditions through influent slots of desilting works
112
Model of Gila Canal headworks and desilting basin
114
Channel and guide piers for entrance to Gila Main Canal
116
The ball check valves
117
Model of Gila Canal headworks
118
Ball check for Gila Canal desilting basin
120
Diffuser for spreading flow into stilling pool of Pilot Knob wasteway
131
Fortuna wasteway
133
91
135
Recommended design for New River crossing
137
The Alamo River crossing
138
Alamo River crossing
139
Model of Alamo River crossing
140
Discharge coefficients of sluice gatesAlamo River crossing
141
Section DROPS Page 88 Drop 1 AllAmerican Canal
142
Original design of drop 1AllAmerican Canal
143
Drops 2 and 3 AllAmerican Canal
144
Hydraulic models of drops 1 and 4
145
Original design of drop 2
146
Diffusion bucket for drop 2
147
Recommended design pool and approachchannel pier for drop 2
148
Bafflepier stilling pools studied for drop 2
149
Velocities in diffusionbucket and bafflepier poolsdrop 2
150
Diffusion buckets tested in drop 2
151
Final design diffusion bucket for drop 2
152
Original design
153
Pier studies for drop 4
154
Piers studied for drop 4
155
Revised designdrop 4
156
Bafflepier pools for drop 4
157
Recommended design stilling pooldrop 4
158
Diffusion bucket for drop 4
159
Some diffusion buckets tested for drop 4
160
Additional diffusion buckets tested for drop 4
161
Final design stilling basin for drop 4
162
Comparison of bafflepier and diffusionbucket stilling pools
163
Pressures on diffusion bucket of drop 4
164
Profiles for bafflepier and diffusionbucket stilling poolsdrop 4
165
Profiles for bafflepier and diffusionbucket stilling poolsdrop 4
166
Comparison of velocities in two types of stilling poolsdrop 4
167
Flow through recommended and final design stilling poolsdrop 4
168
Sill at downstream end of a stilling pool
169
Final design stilling pool for drop 5
170
Velocity distribution in final design pool of drop 5
171
Coachella power drop
172
Crossdrains and overchutes
173
Hydraulic models of Coachella power drop
174
The Gila Canal overchute
175
Studies for the Coachella overchutes
179
Development of overchutes to withstand degradation
183
REGULATING GATES 104 Automatic regulator gates
189
116
7
Effect of depth of approach
22
20
29
Movement of sediment through reservoir of Imperial
46
Delta formation in reservoir of Imperial
47
Formation of antidunes in model of Imperial
48
Specific heat
51
93
53
The tinfoil electric analogy apparatus
57
Computing timetemperature history
72
130
78
Comments on mathematical processes
82
Owyhee
89
95
95
159
137

Other editions - View all

Hydraulic investigations: Bull.1. Model studies of spillways. Bull.2. Model ...
United States. Bureau of Reclamation
Full view - 1949
Hydraulic investigations: Bull.1. Model studies of spillways. Bull.2. Model ...
United States. Bureau of Reclamation
Full view - 1938
Hydraulic investigations: Bull.1. Model studies of spillways. Bull.2. Model ...
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Common terms and phrases

Alamo River All-American Canal Axis of inlet Axis of sluice baffle piers Boulder Canyon Project Boulder Dam cement chute Coachella Canal coarse aggregate Colorado River conductivity constructed crest culvert curve degrees F density Dentated steps deposit deposited sediment desilting basin determine diffusion bucket downstream end eddies Effect ejector electric analogy elevation feet final design flow conditions flume GATE OPENING Gila Canal headwater hydraulic jump hydraulic model IMPERIAL DAM inlet gates intake investigated LONGITUDINAL SECTION material maximum discharge Model Studies model tests original design overchute Owyhee Dam percolation model Piezometer PLAN pool floor pressure properties of concrete prototype RHYOLITE riprap rock types satisfactory scale scraper second-feet SECTION A-A sediment shape shown in figure side sill slope slot sluice gates sluiceway spaces specific heat specimen spillway stepped apron stilling basin stilling pool stream tailwater Teeth temperature thermal properties Trashrack values velocity walls water content Water surface weight weir width

Bibliographic information

TitleHydraulic investigations: Bull.1. Model studies of spillways. Bull.2. Model studies of penstocks and outlet works. Bull.3. Studies of crests for overfall dams. Bull.4. Model studies of Imperial Dam, desilting works, all-American canal structures
Part 6, Issue 4 of Boulder Canyon Project, United States. Bureau of Reclamation
Part 6, Volume 4 of Boulder Canyon Project: Final Reports, United States. Bureau of Reclamation
AuthorUnited States. Bureau of Reclamation
PublisherUnited States Department of the Interior, Bureau of Reclamation, 1938
Original fromthe University of Virginia
Digitized22 Mar 2010
  
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