WSP10487

• File Number: 8220.200.05.J
• Description: Hoover Dam/Lake Mead/Boulder Canyon Project
• Basin: Colorado Mainstem
• Date: 1/1/1949
• Author: USDOI/BOR
• Title: Boulder Canyon Project Final Reports: Part IV/ Bulletin 5 - Penstocks and Outlet Pipes
• Water Supply Pro - Doc Type: Report/Study

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CONTENTS
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Introductory statement__h __________n________n______._n____ n
Engineering organization during constructiOD_____________________ VI
FOIe1WODd_____________________________________________________ vn
Contents_____________________________________________________ IX
List of figures_____________________ ____________________________ XVIII
List of tables__n______n____nn__n____nu______n__________ XXII

CHAPTER I-INTRODUCTION AND SUMMARY

INTRODUCTION
1. General description_________ ______________________...____________ 1
2. Design studies___n______________h__nn_____________________ 7
3. Special features____n_u_____________ _________n______________ 9
4. Purpose of bulletin_hn_n_h_n__nn__nh__n____n________ 10

SUMMARY
5. Design of pipe___-_____________________________________________ 10
6. Properties of steeL_______n_____nn___________n_________h~_ 11
7. Fabricating sbop__u____n__unn__n___ _n________n__n____ 12
8. Size of platesn__n_____n__________n____n___n___n____u__ 12
9. Fabrication of pille_____n_____uh_n_________h________n____ 13
10. Welding of joints_n_n_n____n____n_.__n__n____n________ 14
11. Radiographic insDection______n____ __ _ ____________.____n_n___ 14
12. Stress relieving_ _ n___nn___n____n___n________n__________ 14
13. Transportation and ere~tion-__h------------------~------------ 15
14. Prest~ing_____.________________________________~___________. 16
15. Testing, cleaning, and pairiting_____________________.____n____... 16
16. Cbronologyn__n_______n___n_ _ ___n___ n__ ______ ______n___ 17
17. Pemonn&___________________________________________________~ 17
Bibliography_________________________________________________ 18

CHAPTER II-HYDRAULIC AND ECONOMIC
STUDIES

INTRODUCTION
18. Conditions and ~quirements___________h__n______.________u.._ 19
19. Development of plan_____________________________~____________ 20

HYDRAULIC STUDIES

20. Thoma's experiments__________n_________________~_____,h___._ 23
21. Model investigations______n _ _____________n__n__n__n______ 25
22. Streamline wye With tie rods______nnnu__n__u_____n______ 27
23. Vibration of tie rodsh__n________n____n___n______n__n____ 33
24. Occurrence of vorticeB____________________________~____________ 35
25. Frequ.ency of vortex generationhn________________~____________ 37
26. ElaStic frequency of tie rods____n______________n______________ 38
27. Possibility of resOnance___________________________~____n______ 38
28. ConclusioDs________________._____ _______________ _ _____________ 38

IX