Design Manual for Concrete Pipe Outfall Sewers
File : pdf, 3.5 MB, 56 pages
-TOC-
1. INTRODUCTION
2. HYDRAULIC CONSIDERATIONS
2.1. Some Basic Defnitions
2.2. General
2.3. Vertical Alignment
2.3.1. Basic Principles
2.3.2. Velocity and Discharge
2.3.3. Drop Structures
2.3.4. Further Considerations for Drop Structures
2.4. Horizontal Alignment
2.4.1. Basic Principle
2.4.2. The Impact of Manholes
2.4.3. Manhole Pipes
2.4.4. Distance between Access Points
3. LOADS ON BURIED PIPES
3.1. Introduction
3.2. Earth Loads
3.3. Trench condition
3.4. Embankment condition
3.5. Jacked Pipeline Installation
3.6. Flexible Pipes
3.7. Traffc Loading
4. CONCRETE PIPE STRENGTHS
4.1. External loads
4.2. Internal Pressure
4.3. Safety Factors
4.4. Selecting Concrete Pipe Class
4.4.1. External load
4.4.2. Internal pressure
4.4.3. Combined Internal Pressure and External Load
4.5. Pipe Bedding and Installation Details
4.6. Jacking Conditions
5. CORROSION PREDICTION
5.1. Background
5.2. Corrosion Mechanism
5.3. Corrosion Prediction Theory
5.4. Sulphide Generation
5.5. Hydrogen Sulphide Release
5.6. Acid Formation and Concrete Corrosion
6. CORROSION CONTROL
6.1. Developments in South Africa
6.2. Pipe Material Choice for Sewers
6.3. Corrosion Control Layer Thickness and Crack Widths
6.4. Remarks on CAC/DOL Linings
6.5. Notes on HDPE Linings
6.6. Design and Detailing Considerations
7. FIELD TESTING
7.1. General Comments
7.2. Types of Pipe Joint
7.3. Water Testing on Site
7.4. Air Testing on Site
8. CONDITION OF EXISTING SEWERS
8.1. Aging of Sewers
8.2. Pipe Materials
8.3. Condition Assessment
8.4. CCTV Camera Inspections
8.5. Physical Measurement of Corrosion
8.6. Comparing Life Factor Model, CCTV and Physical Inspection Data
9. CONCLUDING REMARKS
Download : link
