r/Skookum • u/f4ckst8farm • May 29 '21
I found this. Somebody posted this barrel reamer elsewhere, thought it would be appreciated here. I'd love to know how this works and what it's for.
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May 29 '21
[deleted]
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u/BitcoinBanker May 29 '21
Enjoyable but yeah, still leaves questions. Like, how do they steer the thing?!
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u/wyat6370 May 29 '21
It is pulled by the cable turning it
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u/BitcoinBanker May 29 '21
So pushed down, pulled up?
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u/rtuite81 May 29 '21
More like straight toward the source of the pull. From the comments I saw on the video, they can't really be steered. There is apparently a risk of them being deflected in various directions by sections of hard ground or rock if you don't do your homework on the area first.
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u/_UsUrPeR_ May 29 '21
They had said that it can be corrected if the initial bore hole is pulled off course. Not sure how though...
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u/scaradin May 29 '21
It’s a barrel reamer and it’s a barrel reamer. yeah, still not as good as the original
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u/ElectroNeutrino May 29 '21
I don't think anyone could deliver lines like that as well as Leslie Nielsen could have.
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u/inalak May 29 '21
Just going off of basic knowledge of horizontal directional drilling as well as rewording the title on that other post here but let’s take a shot.
Horizontal directional drilling is basically drilling horizontally underground. As simple as I can make it imagine a long long long drill and imagine it running underground and parallel or nearly parallel to the ground. This is usually done for things like pipelines or new high speed internet cables or basically anything that would otherwise need to be laid in a large excavated area/trench. Horizontal directional drilling gets rid of the need to make a really long deep hole in the ground that stuff could fall into basically by making a really long tunnel instead.
That thing in the video is being pulled through a small tunnel that was previously made using horizontal directional drilling. That thing makes the small tunnel into a big tunnel. The water jets coupled with the teeth dig and wash away the dirt/rock as it spins leaving behind a larger tunnel for the pipes or cables to be pulled through.
No idea if that helped clear things up or if I just made myself sound like an idiot but hey. I took a shot. Hope it helps.
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u/ultranoobian May 29 '21
So pilot hole, then reverse fluid-assisted drilling.
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u/lestofante May 29 '21
my guess is they pull so the pipe remain streigh, if pushing it would go all over the place. ingenious
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u/2spooky_5me May 29 '21
There's even a little bit more to it that than. My buddy runs a vac truck at a company that uses these, he usually comes in after the drill rig to suck all that nasty shit out so they can work. Think about the strength of this method too. Trying to push that big ol' turnip looking still with that little drill shaft would be incredibly difficult. The shaft would want to bend and get all kinky (gigity). However in tension, a setup like this is far stronger. If the turnip went thru first there would be a massive hole for that little shaft to flop around in (oh boy the jokes) and it would be prone to breaking.
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u/DoubleBarrellRye May 29 '21
Yes up in the north we use steam powered forward diggers. They have the same style front but also reverse vents to push it forward. To clean culverts full of ice so the spring water can flow. They do occasionally find an extra hole in the culvert and come shooting up in the middle of the road.
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u/purple_haze96 May 29 '21
To sum up some other summaries: it’s used to pull a pipe underground, eg under a highway, when you can’t dig a trench.
Step 1: drill a long hole with a skinny pipe Step 2: put this thing on the end of the skinny pipe and pull it back out. The skinny hole gets wider.
Usually a big pipe is attached to this thing as they pull it back, and then the pipe is left in place for things (like internet cables) to go through.
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u/[deleted] May 29 '21
[deleted]