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TOC

CHAPTER 1 INTRODUCTION
1-1 SCOPE
1-2 POLICY

CHAPTER 2 SHIPYARD LAYOUT
2-1 SHOP FACILITIES
2-2 LAYDOWN SPACE
2-3 POWER AND UTILITIES
2-4 CRANE AND CRANE TRACKS
2-5 SHIP APPROACHES
2-5.1 Turning Basins
2-5.2 Drydock Orientation Effect
2-6 FITTING OUT/REPAIR PIERS
2-6.1 Existing Piers
2-6.2 New Piers
2-7 SILTING AND SCOURING
2-8 TOPOGRAPHY, HYDROLOGY, AND METEOROLOGY
2-9 FOUNDATION CONDITIONS

CHAPTER 3 DETERMINATION OF GRAVING DOCK DIMENSIONS
3-1 MINIMUM INSIDE DIMENSIONS
3-2 REPAIR AND SHIPBUILDING DRYDOCKS
3-2.1 Basic Dimensions
3-2.2 Relationship to Height of Blocking
3-2.3 Allowance for Sonar Domes
3-2.4 Caisson Seats
3-3 DRYDOCKS FOR SHIPBUILDING ONLY
3-4 INSIDE CONFIGURATION
3-4.1 Head End Shape
3-4.2 Entrance End
3-4.3 Cross Section
3-6 CHAPTER 4 STRUCTURAL TYPES OF DRYDOCKS
4-1 DESIGN AND CONSTRUCTION
4-1.1 Basis of Type Designation
4-1.2 Methods of Construction
4-2 TYPES DICTATED BY FOUNDATION CONDITIONS
4-2.1 Full Hydrostatic
4-2.2 Fully Relieved
4-2.3 Partially Relieved
4-2.4 Miscellaneous Types

CHAPTER 5 STRUCTURAL DESIGN
5-1 SCOPE
5-2 DEAD LOADS
5-3 HYDROSTATIC PRESSURE
5-4 EARTH PRESSURE
5-4.1 Variations
5-4.2 Water or Ship in Dock
5-4.3 Dock Empty
5-5 LIVE LOADS
5-5.1 Shiploads
5-5.2 Wheel Loads
5-5.3 Loads on Pumpwell Overhead and Floors
5-5.4 Earthquake Forces
5-5.5 Bomb and Blast Resistance
5-6 SPECIAL CONDITIONS OF LOADING
5-6.1 Full Hydrostatic Drydocks
5-6.2 Partially and Fully Relieved Drydocks
5-6.3 Drydocks Built by Underwater Methods
5-7 MATERIALS AND DESIGN
5-8 METHODS OF ANALYSIS
5-9 SAFETY CONSIDERATIONS
5-9.1 Basic Safety Standards
5-9.2 Safety Features Peculiar to Drydocks

CHAPTER 6 FLOODING
6-1 DESIGN FACTORS
6-1.1 Requirements 6-1.2 Flooding Periods
6-2 FLOODING METHODS
6-2.1 Common Intake Features
6-2.2 Flooding Culverts
6-2.3 Flooding Through the Caisson
6-2.4 Superflooding
6-3 HYDRAULIC DESIGN
6-3.1 Overall Factors
6-3.2 Evacuation of Flooding Time
6-3.3 Computation of Flooding Time

CHAPTER 7 DEWATERING
7-1 DEWATERING SYSTEMS
7-1.1 Requirements
7-2 DEWATERING SYSTEM COMPONENTS
7-2.1 Collector Channel
7-2.2 Sand Pumps
7-2.3 Dewatering Pump Suction Chamber
7-2.4 Pumping Plant
7-2.5 Pump Discharge Tunnel
7-2.6 Gratings
7-2.7 Salt Water Intake Screen
7-2.8 High Water Sensing System
7-3 BASIC REQUIREMENT FO DESIGN FACTORS
7-4 PUMPING SYSTEMS
7-5 FIELD TSTING OF DEWATERING SYSTEM
7-5.1 Determination of Capacity
7-5.2 Power Input
7-5.3 Determination of Head
7-5.4 Tide Effect

CHAPTER 8 FITTINGS, SHIP BLOCKING, SUPPORTING FACILITIES AND SHIPS SERVICES
8-1 FITTINGS
8-2 SHIP BLOCKING
8-3 SUPPORTING FACILITIES
8-3.1 Industrial Shop Facilities
8-3.2 Transportation Facilities
8-3.3 Weight and Materials Handling Equipment
8-3.4 Personnel Facilities
8-3.5 Storage Facilities 8-4 MECHANICAL SERVICES
8-4.1 Pipe Galleries and Tunnels
8-4.2 Fresh Water
8-4.3 Salt or Nonpotable Water Supply
8-4.4 Specific Requirements for Salt or Nonpotable Water
8-4.5 Wastewater Protection
8-4.6 Steam
8-4.7 Compressed Air
8-4.8 Wheeler System
8-4.9 Oxygen and Acetylene
8-5 ELECTRICAL SERVICES

CHAPTER 9 ENTRANCE CLOSURES
9-1 SELECTION
9-1.1 Requirements 9-1.2 Types 9-2 DESIGN OF FLOATING CAISSONS
9-2.1 Application
9-2.2 Requirements 9-2.3 Types 9-2.4 Ballast Control 9-2.5 Operation
9-2.6 Materials of Construction
9-2.7 Machinery
9-3 DESIGN OF BOX TYPE FLOATING CAISSONS
9-3.1 Shape
9-3.2 Ballast
9-3.3 Design Analysis
9-3.4 Equipment

CHAPTER 10 CONSTRUCTION
10-1 CRITERIA
10-1.1 Approach
10-2 DRYDOCK BODY
10-2.9 Miscellaneous Items
10-2.10 Backfill 10-3 ENTRANCE ENCLOSURES
10-3.1 Construction and Use
10-3.2 Dimensions
10-3.3 Ballast 10-3.4 Launching
10-3.5 Steel Caissons
10-3.6 Concrete Caissons
10-3.7 Closure Tests
10-4 SUPPORTING FACILITIES AND ACCESSORIES
10-4.1 Crane Rails
10-4.2 Cranes
10-4.3 Railroad Tracks
10-4.4 Bollards and bitts
10-4.5 Ladders
10-4.6 Manhole Steps
10-4.7 Dock Water Level Indicators
10-4.8 Marking Plates
10-4-9 Fenders and Chafing Strips
10-5 MECHANICAL AND ELECTRICAL EQUIPMENT

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This paper will highlight genuine case studies of Power Quality troubleshooting that was not capable of solving the Power Quality problem with measurements simply taken to comply with standards. It will further show that by providing engineers with data beyond the standards, an unprecedented number of Power Quality events can not only be captured, but are definitively solved.

INTRODUCTION

The main objectives for power quality monitoring are as follows: Power Quality Statistics: Measuring the power quality conditions in general, mainly to analyze the overall performance of an electrical systems power quality. In many cases this is monitored for facility distribution networks, large regions or total value for a utility.

Power Quality Contracts: Customers who are sensitive to power quality may have a specific electrical power contract that outlines the minimum acceptable power quality level to be supplied by the utility. Power Quality Troubleshooting: Analysis of power quality events, usually close to a problematic load or customer. The analysis may be driven from power quality failure, but is preferable to be driven by continuous monitoring that can detect potential problems. It is relatively obvious that power quality troubleshooting is the first stage, hopefully followed by some kind of corrective action. That corrective action would outline something that can or should be done in the network to improve the situation and prevent reoccurrence of the failure. However, the power quality statistics and contracts may also be followed by corrective action if the minimum power quality level is not achieved. While it is obvious that there is never too much information that can be utilized in troubleshooting, many papers written on this topic discuss what additional information should be added to the existing guidelines for power quality statistics and power quality contracts.

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