Nice job changing to a longer drill steel. That is some heavy gauge wire you got there. When was mining in the Leadville, CO district, we used chain link fence and split set bolts.
Yes the bolt shown here is only 6ft but they range from 4-12ft depending on the ground conditions, so if 8ft sucks then I'd assume12ft bolts must suck more lol. This particular machine is no longer in use (early 70's vintage), we now have a Getman scissor unit that was also given wings.
I can only imagine since I'm only referred to as "The Mechanic" (my trade)/videographer/photographer, been working there for 34+ years and have a lot of respect for those doing this type of work.
My bad... Should have said rebar bolts are not the correct product for our application, we use DYWIDAG Threadbar #6 (19mm) through #8 (44mm) in conjunction w/resin with 12' #8s being the norm. I'm no expert here as I'm just "the mechanic" (HD Mechanic by trade) as the boys would say and I have a lot of respect for them and the work they do.
When you say material you mean it shouldn't be steel? I'm a green in mining 3 months old! :) Depending on the ground we use threaded rebars with a nut hold in place by a cutter pin, we stick the rebar in the hole with resine once it freeze we give a couple of shot of the stoper to break the pin and thight it in place. For molding the screen we use split set or rock bolts.
Rebar is not the correct material and besides, the bolt has to be threaded to allow for a nut and plate to be installed to retain the screen against the rock. The bolts vary in length and size with the one being used dependant on the type of ground conditions.
That’s not a bolt it’s a dewie dag, number 7 or 8, a threaded dowl Mainly used for construction drilling, a bolt is a rebar is paddle bolt, cone bolt, MDX bolt, dowls are totally different
Nice job changing to a longer drill steel. That is some heavy gauge wire you got there. When was mining in the Leadville, CO district, we used chain link fence and split set bolts.
Yes the bolt shown here is only 6ft but they range from 4-12ft depending on the ground conditions, so if 8ft sucks then I'd assume12ft bolts must suck more lol. This particular machine is no longer in use (early 70's vintage), we now have a Getman scissor unit that was also given wings.
I can only imagine since I'm only referred to as "The Mechanic" (my trade)/videographer/photographer, been working there for 34+ years and have a lot of respect for those doing this type of work.
My bad... Should have said rebar bolts are not the correct product for our application, we use DYWIDAG Threadbar #6 (19mm) through #8 (44mm) in conjunction w/resin with 12' #8s being the norm. I'm no expert here as I'm just "the mechanic" (HD Mechanic by trade) as the boys would say and I have a lot of respect for them and the work they do.
Yep, that's why they call it "HARD ROCK MINING" eh!
That's how made a pay check
Awesome video good job the rod was sticking out a little far at the end but it's fine.
When you say material you mean it shouldn't be steel?
I'm a green in mining 3 months old! :)
Depending on the ground we use threaded rebars with a nut hold in place by a cutter pin, we stick the rebar in the hole with resine once it freeze we give a couple of shot of the stoper to break the pin and thight it in place.
For molding the screen we use split set or rock bolts.
Wow that must hold very heavy ground!
Wait till you put in some15ft spin cables, thats a whole other beast.
Rebar is not the correct material and besides, the bolt has to be threaded to allow for a nut and plate to be installed to retain the screen against the rock. The bolts vary in length and size with the one being used dependant on the type of ground conditions.
as if its all bolted with dwy dags that must take a while lol
That’s not a bolt it’s a dewie dag, number 7 or 8, a threaded dowl Mainly used for construction drilling, a bolt is a rebar is paddle bolt, cone bolt, MDX bolt, dowls are totally different
Can we use dry drilling in this bolting condition?
Where is this mine?
Ya I thought I had it bad bolting whenever I worked in the coal mines! Lol
Geez why such big bars?
Why not use regular rebars?
those are only 6ft bars thats gravy...8 fts suck...by the way that lift is set up mint with those fold down railings!
Did it the hard way....... must be Canadian..... not Aussi miners
Yeah and y'all make fun of us coal miners I'm a bolt man at least we got equipment to do the work smh