Pipe bedding for RCP in high groundwater
Pipe bedding for RCP in high groundwater
(OP)
We are installing 12"-36" RCP piping and precast structures for a proposed storm drainage system in an area that has higher than anticipated groundwater. The contractor is dewatering while he is preparing the bedding and installing the pipe and structures. While I realize the high groundwater will eventually stabilize over time to a degree, I am concerned about a capillary action in the trench pulling in large amounts groundwater and negatively affecting the integrity of the RCP pipe or precast structure installations. I was thinking clay dams every 100' or so to help break up the flow of water, but, are there any other measures (e.g. pipe bedding material?) that I should be investigating. I would appreciate any help. Thanks.





RE: Pipe bedding for RCP in high groundwater
1. Are you concerned with the pipe floating?
2. Have you checked the Conc. Pipe Design Manual?
The link to the conc. pipe manual is http://www.concrete-pipe.org/manual/START.pdf
Also have considered a cement based bedding?
Good Luck! Out here in the Southwest we don't deal with GW much.
RE: Pipe bedding for RCP in high groundwater
RE: Pipe bedding for RCP in high groundwater
Civilperson's fix was proposed in the field by the contractor, and approved by the inspector (Twp Engineer). It appears to be working fine. No trench plugs/clay dams were used.
Engineering is the practice of the art of science - Steve
RE: Pipe bedding for RCP in high groundwater
RE: Pipe bedding for RCP in high groundwater
I have used clay or sand-cement sack dams perpendicular across the trench at times, but only when on very steep profiles.
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Pipe bedding for RCP in high groundwater
RE: Pipe bedding for RCP in high groundwater
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Pipe bedding for RCP in high groundwater
RE: Pipe bedding for RCP in high groundwater
What I didn't consider is that somebody might want to follow one, so that's a good point. Thanks.
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com
RE: Pipe bedding for RCP in high groundwater
RE: Pipe bedding for RCP in high groundwater
RE: Pipe bedding for RCP in high groundwater
Kova, Turkey 2004
BigInch
-born in the trenches.
http://virtualpipeline.spaces.msn.com