Underground Work.....

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Alwayslearningelec

Senior Member
Location
NJ
Occupation
Estimator
Hello.
For those that have installed a lot of underground conduits I'd like to know more about the process of getting these in the ground. Not so much the men putting the conduit in the trench but a logistical factor such as:
1. If you have 200-300 open trench where is the conduit staged as it goes in the trench? Do you take it off a truck and move the truck along? Do you lay out all the conduit on the ground next to the trench? I guess offloading aspect I'm inquiring about. WOuld it make a difference how one would offload/install into the trench whether it was PVC RGS or HDPE? I think HDPE comes in reels.

Thanks.
 
Everything unloaded at one end of the trench. Tape/plug one end then glue and push ,repeat till you get done. Helps to have someone to guide the end once you hit 100+ feet. Obviously sooner than that if it’s larger pipe.
 
Pushing more than a little conduit would become difficult.

How many conduits in the trench? Are they just laid in or stacked/spaced with chairs?
How deep is the trench? Bends? Flat or hilly?

I haven't installed HDPE but I've seen crews both park the reel and pull off it and securing one end and pulling a reel trailer along the trench.
 
It depends on the trench, the site, my mode and man power.
I like to assemble outside the trench let set and roll into the trench. But not always.
Then make my fine measurements with the conduit in the trench.
 
zbang said:
Pushing more than a little conduit would become difficult.

How many conduits in the trench? Are they just laid in or stacked/spaced with chairs?
How deep is the trench? Bends? Flat or hilly?

I haven't installed HDPE but I've seen crews both park the reel and pull off it and securing one end and pulling a reel trailer along the trench.
Click to expand...
4-5 conduits.
 
I guess there's a risk.
I'm very confident in how I execute it.
Using primer accompanied with cement/ solvent makes a durable bond.
I don't always do it that way sometimes it makes sense to make it all up in the trench.
 
Guess I’m the odd man out.

I spread it out along the trench. If it was dug with a hoe, hopefully spoils are on one side only. I lay it out on the other side.

I jump in the ditch, or work from the outside, whichever is easier, glue and drop I the trench.

I stretch a shovel or short piece of pipe across the trench to support the end I’m working on.

Very rarely do I have a straight or level trench, so I usually don’t do the push thing.

Depending on size, 2-300 feet is only an an hours work really.
 
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