Hello, everyone.
This is Enta.
You know what self-drilling rock bolts are, right?
Other Drilling: Use a drilling machine with a specialized drilling rod to drill a hole, then insert the rebar.
Self-drilling: Use a self-drilling rod with a drilling machine, then inject the material directly to complete the process.
Generally, when the natural ground is not stable, the process involves drilling with a self-drilling rod, followed by insertion? and grouting.
This is a self-drilling rod.
While connecting it with a coupler, drill and insert it to the specified length.
We'll blow air through the hole in the center to remove the drilling slime.
Since this hole will eventually be used to pass cement slurry through, drill it so that air can flow through it reliably.
This is the connector.
We'll use this to connect the rods together, but,
Depending on the type of drilling machine, this coupler can break easily, so it's best to have at least two spares on hand.
Bit that attaches to the tip
The photo shows a bit with a cutting tip; it might be able to cut through relatively soft rock.
But in reality, the self-drilling rods and couplers end up breaking or cracking, so you can't really measure the performance of the tipped bits lol
Well, if it's a hand-dug well, it'll still be somewhat useful even with the chip attached.
Machine drilling is a disaster, lol (They keep breaking and running out, lol)
When it comes to self-drilling, digging by hand is nice, but it's tiring, so machines are definitely better, aren't they?
Since digging by hand can make your hands go numb, I also recommend these vibrating gloves.
And now for the injection.
Make sure to thoroughly work the cement slurry into the surface so that it sets properly.
From here on, we'll be working on the head.
Self-drilling rock bolts are used when the borehole walls in the rock mass are not stable, but
There are all sorts of tricks to drilling, so I don't think it's suitable for beginners.
Well, I think you can drill fairly well if you use a swivel, but the question is how quickly you can get the hang of it until you get used to it.
That really shows the difference between a pro and an amateur, lol.
People who drill quickly are incredibly fast, you know ^^ (Fast and safe!)
See you later.
