Encasing water main in concrete
Encasing water main in concrete
(OP)
What would be the main reason(s) for encasing in concrete a 48-inch steel main crossing perpendicularly under another 48-inch steel main? The main is to be encased even if the specified minimum (12") clearance between the mains is achieved.





RE: Encasing water main in concrete
RE: Encasing water main in concrete
RE: Encasing water main in concrete
However, it's possible that you encase a pipe in concrete when you're worried about compaction over the bottom pipe. Poor compaction might result in loss of support for the top pipe or even settlement of the soil above.
RE: Encasing water main in concrete
RE: Encasing water main in concrete
The pipes are located in a street, with heavy traffic; cross each other at an intersection; both are steel, 48-inch in diameter; clearance between the mains will be 12" or greater. About 30 feet of the bottom main are to be encase in concrete (wire mesh + 8" concrete all around)
JedClampett, excellent comment.
RE: Encasing water main in concrete
You might want to get a copy of : Buried Pipe Design By A. P. Moser, Steven L. Folkman. Design issues are addressed there.
JedClampett has made some valid comments.
RE: Encasing water main in concrete