Pull test

[tamrock]

Yesterday I went to a small operation to preform a pull test. This is something I'm required to do as a vendor who sells the anchors, which are called split sets or friction bolts, which were introduced I believe around the late 1970s by Ingersoll Rand. Today there are a handful of manufacturers of this design. The miners here are mostly young eager to learn fellas. One of the miners looks to be checking his Facebook as I loaded up my tester and he'll nip it to the area were the splits were fitted with the special collars that allow us to hook up the pull tester. I have to walk to the area and dang this main portal is pretty low and I ain't used to walking bent down so much these days. They have a couple Eimco 12B muckers, which I still recall getting parts for when I worked for Tamrock after they acquired the company EJC which sands for Eimco Jarvis Clark. That was around 1993-94 when I worked there, but I quit after they said I was to be transferred to Atlanta back around when the company was acquired by Sandvik Mining. It was a pretty fun day up there yesterday and the weather was great. So far its been a pretty peaceful winter up in the Rockies. Today I'll be heading over to the Western slope on a quick trip to get there and back before a predicted storm hits Colorado.

 

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[russau]

I used to work for a major aircraft manufacturing company and they had the stretch test (failure test) that would keep a certain continuous rapid stretch movement's of the part until failure . This included complete aircraft .

 

[tamrock]

I used to work for a major aircraft manufacturing company and they had the stretch test (failure test) that would keep a certain continuous rapid stretch movement's of the part until failure . This included complete aircraft .

These were able to pull out with a bit over 8 tons of force. Anything less than 6 tons would have been a failed anchor hold. I saw tools like what you're describing at a place torcUP. They would measure the stretch on bolts TorcUP - Industrial Hydraulic & Pneumatic Bolting Torque Wrenches

 

[Al D]

Great photos, I did the same thing quite a few years ago, did pull testing on about 200 anchor bolts that were destined to hold down a radar dome at Vandenberg AFB.

 

[cyzak]

Excellent photos keep posting this type of operations good to see these men work-in.

 

[tamrock]

Excellent photos keep posting this type of operations good to see these men work-in.

Yeah this is a neat little mine. There's a lot of gold in there, but it's gonna take some investment to get to the point of pulling some real tons out of it. They gotta make a bigger access outta one adit higher up so they can mine with mobile equipnent such as a jumbo, LHD and a haul truck. It's a cry for Mo Muck which they'll need a bigger hole to get it out.

 

[cyzak]

That's how they start rolling once they see the gold coming out of there, katy bar the door. Man that portal in the last photo is sketch they will have to get some light rounds in there to get cleaned up. Then get there square sets built then its go time. Good to see these small time operation running grit and determination is what it takes.