1-pre planning
Is the pipeline project is economically feasible and practical?
2-variant selection
You need a highway map and a topographical, Geological survey.
Acquisition of the right-of-way
3-data collection
4-how it is the soil type
Where is groundwater or hard rock?
5-pipeline design
Load considerations
Static earth load on buried pipe
Effect of temperature change
Effects of pipe bending
Seismic design of pipelines
6-legal permits
7-right-of-way preparation
Clearing path usually 10 m width
8-stringing
Pose Pipes in a line
9-ditching and trenching
10-river and road crossing
What is the best method?
11-bending, welding, coating and wrapping
The welded joints are radio graphically inspected
The pipeline is coated and wrapped
For pipelines laid underwater, the pipe must be covered with a thick layer of concrete
12-pipe lying
Bedding materials to support the pipes
13-backfill and restoration of land
14-hydrostatic tests procedures
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