Chapters from this episode
Now Playing
Now Playing
Now Playing
Now Playing
Clip Transcript For:
Blasting Bedrock to Create the Foundation
computer-generated transcript - may not be 100% accurate
" Bob, this is Alan Dyke."
" Hey, Alan."
" Hi."
" How are you?"
" So I've never gotten this close to 1 of these drilling rigs. Is this what the bits look like?"
" Yes. This is what they call a button bit."
" A button bit."
" Right."
" And those are button shapes. What are they made out of? Steel?"
" No. those are made of cardboards."
" Ah hah. So that's set into the steel."
" Right."
" And does this just go up and down or----"
" Yes. On the end of a steel, whatever lengths of rods you wanted it in."
" Uh huh. Does it rotate?"
" Yes. It spins in there."
" Yes."
" Okay. And how does the machine itself work?"
" The hammer goes up and down on this----"
" On a chain."
" on this chain, which is worked by air."
" So you've got a compressor that's providing a certain amount of pressure."
" Right."
" And then there's also hydraulic component?-Right. Air over hydraulics."
" I see. Alright, it's gonna be real noisy so why don't we start it up?"
" Okay."
" Okay. So this is the last hole, Alan, and that's what? About 5 or 6 feet down to the bedroom?"
" Yes."
" Okay. That's why dynamite was a red stick."
" Well, you can buy it, but it is so"
" cap, and then----"
" Then we'll have a chip here."
" There you go."
" Pulse this hole with less water."
" Oh yeah."
" You hid my well."
" We found a little water right amidst the rock down there. Now what's to keep this from just blasting straight up, Alan?"
" Well, we have to use it's what they call a pea stone to lay it on top of it."
" Blasting contractors have to be sure that everyone is out of the area and accounted for before setting off the explosives."
" All set."
" So this is what will set it off, right?"
" Yes. It's called a detonator."
" A detonator. That's a battery central."
" Battery, yes."
" And that's gonna send a little electric charge through these wires, and everything will go pop."
" Okay, press the charge."
" So 1st, you have to charge it a little bit until your light goes off."
" There. You're all set."
" Can I do it?-Yes. Just push that right off."
" Push that off."
" Yeah. Right now."
" Here goes. Boy, this is pretty impressive."