PREFACE
ACKNOWLEDGMENTS
ABBREVIATIONS, ACRONYMS, AND INITIALISMS
1. GENERAL
1.1 Scope of This MOP
1.2 Why Trenchless Technology?
1.3 Horizontal Auger Boring
1.4 Overview of Alternative Trenchless Technologies
2. HORIZONTAL AUGER BORING SYSTEM
2.1 System Components
2.2 Recent Innovations in HAB
2.3 Variations of HAB
2.4 Considerations and Limitations of HAB
3. PLANNING PHASE
3.1 Feasibility Study
3.2 Predesign Survey
3.3 Cost Considerations
3.4 Environmental Considerations and Social Benefits
3.5 Regulatory Requirements
3.6 Show Stoppers and Premium Cost Conditions
4. GEOTECHNICAL INVESTIGATIONS
4.1 Importance of Geotechnical Investigation
4.2 Risk Management and Geotechnical Investigation
4.3 Geotechnical Investigation Program
4.4 Geotechnical Properties
4.5 Geotechnical Reporting Requirements
5. DESIGN AND PRECONSTRUCTION PHASE
5.1 Feasibility and Risk Assessment
5.2 Auger Boring Design
5.3 Pit or Shaft Considerations
5.4 Groundwater Considerations
5.5 Site-Specific Design for Risk Management
5.6 Contract Documents
5.7 Contractor Prequalification
6. CONSTRUCTION CONSIDERATIONS
6.1 Preconstruction Activities
6.2 Jobsite Layout Plan
6.3 Underground Utilities Investigation
6.4 Construction Means and Methods
6.5 Jacking and Receiving Pits
6.6 Shoring Jacking and Receiving Shafts
6.7 Casing Pipe
6.8 Lubrication Fluids
6.9 Carrier Pipe Installation and Grouting of the Annular Space
6.10 Steering Systems (Tracking, Locating, and Guidance Considerations)
6.11 Inspection and Monitoring
6.12 As-Built Drawings and Documentation
6.13 Risk Assessment Plan
6.14 DSCs/Obstructions
6.15 Suggestions for Dealing with Various Ground Conditions
6.16 Potential Problems and Possible Solutions
6.17 Surface Movement-Monitoring Program
6.18 Types of Payment
6.19 Costs for HAB
6.20 Safety Issues
6.21 Control of Construction Nuisances
7. CONCLUSIONS
GLOSSARY
INDEX
