RCP - Placing rock or grouted stone directly on top of a pipe
RCP - Placing rock or grouted stone directly on top of a pipe
(OP)
Typically, I use 2 feet of soil cover minimum on top of a reinforced concrete pipe. Do you guys know of some code/reference that prohibits placing rock or grouted stone directly on top of an RCP? To me placing rocks or grouted stone directly on top of a pipe does not make sense, but it would nice to have a reference to back this approach.
Thanks
Thanks






RE: RCP - Placing rock or grouted stone directly on top of a pipe
RE: RCP - Placing rock or grouted stone directly on top of a pipe
RE: RCP - Placing rock or grouted stone directly on top of a pipe
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: RCP - Placing rock or grouted stone directly on top of a pipe
The American Concrete Pipe Association's Concrete Pipe Design Manual specifies soil that is recommended for pipe overfill, rocks are not included:
www.SlideRuleEra.net
www.VacuumTubeEra.net
RE: RCP - Placing rock or grouted stone directly on top of a pipe
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: RCP - Placing rock or grouted stone directly on top of a pipe
RE: RCP - Placing rock or grouted stone directly on top of a pipe
I am assuming that if rocks are allowed, they need to be hand placed, to avoid damaging the pipes (in lieu of dropping them with a dozer). And that they will not be compacted.
Another, issue if placing rocks or grouted stone is allowed to be placed on top of the pipes, is that if we need 2 feet of fill (soil), so that soil arch defects do not develop and not void the D-Load calculation/application the RCPs are designed for?
Thanks
RE: RCP - Placing rock or grouted stone directly on top of a pipe
RE: RCP - Placing rock or grouted stone directly on top of a pipe
Richard A. Cornelius, P.E.
WWW.amlinereast.com
RE: RCP - Placing rock or grouted stone directly on top of a pipe
RE: RCP - Placing rock or grouted stone directly on top of a pipe
A 24" rock is going to take two or three men to "hand place" it.
There is zero chance of this happening in reality. Apart from anything else, there will be added weight and point loads being added to something which doesn't like point loads. Concrete pipe is great stuff, but start even a small crack going through it down to the re-bar and 10-15 years down the track - failure.
This is a wholly bad idea.
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