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Old 08-12-2010, 04:22 AM
jirrigation jirrigation is offline
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Pipes coming to surface

I was hoping someone could give me some insight as to why at one clients house, pipes are coming to the surface after winter. It happens in certain areas of his property, not the entire property. Pipes can rise to the surface (only thing holding them completely popping out is the grass/roots) as much as 1' per winter. The client burried a conduit for wire to his cabano that intitally was around 2 1/2 ' deep and that come completely to the surface after a few years. Valve boxes raise out of the ground by about a foot every winter as well. The soil is clay.
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Old 08-12-2010, 06:31 AM
MarcSmith MarcSmith is offline
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gotta be frost heave... We had some underground leaks on campus and the contractors were convinced it was irrigation. so they dug up a bunch of lines. and well we did have a leak, AFTER they hit the 3" main... but here are some pics of the trenches.... if you look at one pic you'll see how one section has risen to the surface... ignore the date...
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Old 08-12-2010, 09:17 AM
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Wet_Boots Wet_Boots is online now
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I wonder how things would go if the pipes were surrounded by sand.
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Old 08-12-2010, 09:25 AM
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Dripit good Dripit good is offline
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Sand Pipes (rock column), sunset, Kodachrome Basin State Park. Utah, USA
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Old 08-12-2010, 10:13 AM
MarcSmith MarcSmith is offline
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Quote:
Originally Posted by Wet_Boots View Post
I wonder how things would go if the pipes were surrounded by sand.
ya know in florida I never had any problems with pipes floating up...I wonder if the result of the empty lines in the winter and the high amount of moisture we had this winter is more of the cause...
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Old 08-13-2010, 04:52 PM
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jvanvliet jvanvliet is offline
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Quote:
Originally Posted by MarcSmith View Post
ya know in florida I never had any problems with pipes floating up...I wonder if the result of the empty lines in the winter and the high amount of moisture we had this winter is more of the cause...
Actually I have... on a 1,000 ft run using a remote hunter 4 valve controllers . The guy that low balled my maintenance contract didn't have a clue how to program them or even change the batteries.

Long story short; he disabled the zone, the ground turned into a fine silt like sand and everytime the LCO ran his tractor over the pipe, it forced silt down and the pipe came up.

When I did the installation, all the pipe (excepting the swing pipe to the rotors) was down 30" Now it's just below the surface in places.

Not this guys problem though. I'll bet he had ground water freeze and force the pipe up
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Old 08-13-2010, 05:00 PM
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irritation irritation is offline
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Never seen it happen in 30+ years of doing irrigation, but around here most plow PVC pipe in.
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Old 08-12-2010, 09:52 AM
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Pan Pipes.....


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Old 08-12-2010, 09:59 AM
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This one hits the sour notes...

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Old 08-12-2010, 11:17 AM
WalkGood WalkGood is offline
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The pipes are not rising. The ground is sinking around them.
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