Planning And Design of Hydroelectric Power Plant Structures

Planning And Design of Hydroelectric Power Plant Structures

Department of the Army U.S. Army Corps of Engineers Washington, DC 20314-1000

Planning And Design of Hydroelectric Power Plant Structures

Table of Contents
Subject Paragraph Page Subject Paragraph Page
Chapter 1
Introduction
Purpose and Scope . . . . . . . . . . . . . . 1-1 1-1
Applicability . . . . . . . . . . . . . . . . . . 1-2 1-1
References . . . . . . . . . . . . . . . . . . . 1-2 1-1
Codes . . . . . . . . . . . . . . . . . . . . . . . 1-4 1-1
Criteria . . . . . . . . . . . . . . . . . . . . . . 1-5 1-1
Hydroelectric Design Center . . . . . . . 1-6 1-1
Chapter 2
General Requirements
Location of Powerhouse . . . . . . . . . . 2-1 2-1
Location of Switchyard . . . . . . . . . . . 2-2 2-1
Highway and Railroad Access . . . . . . 2-3 2-1
Other Site Features . . . . . . . . . . . . . 2-4 2-1
Types of Powerhouse
Structures . . . . . . . . . . . . . . . . . . . 2-5 2-1
Selection of Type of
Powerhouse . . . . . . . . . . . . . . . . . 2-6 2-2
General Arrangement of
Powerhouse . . . . . . . . . . . . . . . . . 2-7 2-2
Location of Main
Transformers . . . . . . . . . . . . . . . . . 2-8 2-3
Powerhouse and Switchyard
Equipment . . . . . . . . . . . . . . . . . . 2-9 2-3
Powerhouse Auxiliary
Equipment . . . . . . . . . . . . . . . . . 2-10 2-4
Chapter 3
Architectural Requirements
Exterior Design . . . . . . . . . . . . . . . . 3-1 3-1
Exterior Details . . . . . . . . . . . . . . . . 3-2 3-1
Interior Design . . . . . . . . . . . . . . . . 3-3 3-2
Interior Details . . . . . . . . . . . . . . . . 3-4 3-6
Schedule of Finishes . . . . . . . . . . . . 3-5 3-6
Painting . . . . . . . . . . . . . . . . . . . . . 3-6 3-6
Design Memorandum . . . . . . . . . . . . 3-7 3-7
Drawings . . . . . . . . . . . . . . . . . . . . 3-8 3-7
Chapter 4
Structural Requirements
Design Stresses . . . . . . . . . . . . . . . . 4-1 4-1
Design Loads . . . . . . . . . . . . . . . . . 4-2 4-1
Stability Analysis . . . . . . . . . . . . . . . 4-3 4-3
Subgrade Conditions and
Treatments . . . . . . . . . . . . . . . . . . 4-4 4-5
Foundation Drainage and
Grouting . . . . . . . . . . . . . . . . . . . . 4-5 4-5
Substructure Functions and
Components . . . . . . . . . . . . . . . . . 4-6 4-5
Joints . . . . . . . . . . . . . . . . . . . . . . . 4-7 4-6
Waterstops . . . . . . . . . . . . . . . . . . . 4-8 4-8
Draft Tubes . . . . . . . . . . . . . . . . . . . 4-9 4-8
Spiral Cases . . . . . . . . . . . . . . . . . 4-10 4-8
Generator Pedestals . . . . . . . . . . . . 4-11 4-10
Bulb Turbine Supports . . . . . . . . . . 4-12 4-10
Types of Superstructures . . . . . . . . . 4-13 4-10
Superstructure-Indoor
Powerhouse . . . . . . . . . . . . . . . . 4-14 4-11
Intakes . . . . . . . . . . . . . . . . . . . . . 4-15 4-12
Penstocks and Surge Tanks . . . . . . . 4-16 4-14
Switchyard Structures . . . . . . . . . . . 4-17 4-16
Reinforcing Steel . . . . . . . . . . . . . . 4-18 4-17
Encasement of Structural
Steel . . . . . . . . . . . . . . . . . . . . . 4-19 4-17
Retaining Walls . . . . . . . . . . . . . . . 4-20 4-17
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Subject Paragraph Page Subject Paragraph Page
Area Drainage . . . . . . . . . . . . . . . . 4-21 4-17
Chamfers, Grooves, and
Rustications . . . . . . . . . . . . . . . . 4-22 4-17
Chapter 5
Physical Security
Protection Plan . . . . . . . . . . . . . . . . 5-1 5-1
Chapter 6
Retrofitting Existing Projects
General . . . . . . . . . . . . . . . . . . . . . . 6-1 6-1
Hydraulic Design
Considerations . . . . . . . . . . . . . . . . 6-2 6-1
Geotechnical Considerations . . . . . . 6-3 6-2
Tunnels in Rock Abutments . . . . . . . 6-4 6-2
Cut and Cover Conduits . . . . . . . . . . 6-5 6-2
Free Standing Penstock Within
Conduits . . . . . . . . . . . . . . . . . . . . 6-6 6-2


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