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Building a sewer line using the open trench method with rigid pipes (concrete)
1 Planning and preparation
2 Excavating the pipe trench
3 Creating a load-bearing trench bottom
4 Creating the lower bedding layer
5 Connecting a lateral drain to a main sewer
6 Pipe handling and placement
7 Compacting the haunch zone
8 Backfilling the sides / covering the pipe
9 Primary backfill
10 Restoring the asphalt layer
Quiz – Open trench method – rigid pipes
Quiz – Open trench method
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10 Restoring the asphalt layer
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