Pipelayer Installation Training: Chapter 2 V2.0.0
Safety (23 pages):
This lesson discusses important safety topics, including:
• Utility markings
• Personal Protective Equipment (PPE)
• Overhead utilities
• Worksite conditions
• Daily inspections and requirements
• Identifying the competent person and his or her responsibilities
• Working near buried and exposed utilities
• Working near trenches and how to protect the trench
• Danger zones
Trenching (17 pages): This lesson covers the basics of trenching, including working precisely and efficiently, working as a team, working safely, and working with pipes.
Bedding (10 pages): This lesson covers important points about bedding, including grade, bedding preparation, digouts, uses of bedding, and types of bedding and haunching.
Backfilling (14 pages): This lesson covers how to perform a backfill job correctly. Topics include:
• Backfill material
• Plan for drainage
• Causes of pipe bellies
Manholes (12 pages): This lesson discusses considerations for building manholes, including placement, components, installation, confined space hazards, ventilation, and confined space rescue.
Dewatering (9 pages): This lesson covers the fundamentals of dealing with groundwater, including having a plan, dewatering, pump discharge, and working with pumps.
Tie-ins (12 pages): This lesson discusses the basic considerations when using tie-ins. This includes responsibility for water shutoffs, surveying the area, gathering materials, planning for water drainage, installing a tapping sleeve, performing tie-in testing, compaction, and marking the service line.