ChrisB257 - Always a handy tool to carry, I chose to use them this time as this rock loked like it was heading up under the retaining wall and the blast vibration might have been high enough to cause damage if explosives were used.
In Florida I have put in a few pools where we had to drive pilings, between 12 and 20 about 40 feet deep. I don’t know which is worse, just that nothing is cheap about pools! But like I heard a wise man say “such is life”!
Hello Dave, just watched this pool blast video of your. Seems a bit like boutique demolition to me with all the slicing off of rock with pneumatic plugs and feathers and traditional plugs and feathers. Nevertheless a grand demonstration of your plentiful skills.
Nice work. How are you drilling into the harder granite. We have had a hard time hand drilling 1.25" holes into blue granite in our area. One man riding a drill for an hour to get 6". Any secrets?
Yeah... lots of things to know about efficient rock drilling. I assume you are using a pneumatic drill like mine and not an electric drill. What drill are you using and how old is it? what type of cutting end has it got - a chisel or a button bit? Is it sharp?
OK, rental drills are not often supplied with an air line oiler and as such the life expectancy is short. The first thing you do with a drill is pick it up and turn it upside down and if the piston goes klunk klunk and flops around then it is knackered and will make a lot of noise like it is working but not much drilling happens. They probably also supplied an Atlas RH571 - lightweight drill - not what you want in real hard rock. Another issue is, how is the compressor? Does it hold 7 bar (100psi) when the drill is running?
I hear you Jerry but I don't really want to train my competitors too much, I know for a fact that some of those guys are very basic and not really competitors.
Oh, for sure, but the entry level is fairly basic if you just want to use safety fuse and plain dets - light the fuse, one hole at a time blasting, you add endorsements from there.
Jerry, If you want to learn how to have all of the fun! Go to school and pay a few hundred thousand dollars or more to learn it or join the Military and learn for free, well the Military isn’t free but you will learn how to blow the hell out of a lot of stuff! Blasting rock is an art! Maybe there is a journeyman school for it near you or not? I am also very sure showing how he does this would get him into a lot of T.R.O.U.B.L.E! The kind that will put you inside a place where you surely don’t want to pick up your soap if you drop it... best to buy another bar than caught bent over... and were you have to watch out for big bubba wanting to come be your very special friend! The kind of friend you never want unless your funny like a three dollar bill? and like that kind of thing?
Nomerc, I'm old, retired, ex-military, went to mining college but didn't get to finish and had the school that taught basic info about the subject. It was just curiosity on my part and wondering about how he read the rocks. I've run the drills, just never chose where to put them. I was on the crews that built the fort Knox gold mine outside of Fairbanks Alaska.
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235👍's up demolition Dave thanks again for taking us all along with you for the great show
Glad you enjoyed it Scott.
Not only blasting but wedges and shims (plugs and feathers).
This is surgery. Very neatly done, sir.
Thanks Kevin, did not think that blasting that bit was a good idea as it went up under the dodgy built rock wall.
Nice tidy job Dave! !!
Great stuff Dave - as always nice to see the wedge approach - makes such a nice clean fracture.
ChrisB257 - Always a handy tool to carry, I chose to use them this time as this rock loked like it was heading up under the retaining wall and the blast vibration might have been high enough to cause damage if explosives were used.
A master at work. Sweet job.
In Florida I have put in a few pools where we had to drive pilings, between 12 and 20 about 40 feet deep. I don’t know which is worse, just that nothing is cheap about pools! But like I heard a wise man say “such is life”!
Nothing easy or cheap about pools, a hole in the ground you tip money into.
Nice work.... someone wants a swimming pool badly and has the coin to pay for your work in addition to all the associated expenses of a swimming pool
Yep, I do a lot of pools.
Hello Dave, just watched this pool blast video of your. Seems a bit like boutique demolition to me with all the slicing off of rock with pneumatic plugs and feathers and traditional plugs and feathers. Nevertheless a grand demonstration of your plentiful skills.
Glad you enjoyed it, got to do whatever it takes JW.
nice rockwork in the retaining walls.
Thank you! Cheers!
@@demolitiondavedrillandblast ,and you made those rocks? well done!
Nice work. How are you drilling into the harder granite. We have had a hard time hand drilling 1.25" holes into blue granite in our area. One man riding a drill for an hour to get 6". Any secrets?
Yeah... lots of things to know about efficient rock drilling. I assume you are using a pneumatic drill like mine and not an electric drill. What drill are you using and how old is it? what type of cutting end has it got - a chisel or a button bit? Is it sharp?
@@demolitiondavedrillandblast It is an Atlas Copco air drill with a chisel. Just a rental unit so likely abused. The chisels were in decent shape.
OK, rental drills are not often supplied with an air line oiler and as such the life expectancy is short. The first thing you do with a drill is pick it up and turn it upside down and if the piston goes klunk klunk and flops around then it is knackered and will make a lot of noise like it is working but not much drilling happens. They probably also supplied an Atlas RH571 - lightweight drill - not what you want in real hard rock. Another issue is, how is the compressor? Does it hold 7 bar (100psi) when the drill is running?
@@demolitiondavedrillandblast Thanks Dave. I will check the above. Should we be using a button bit instead?
Oh heck yeah, a balistic button bit is about 40% faster and they do more meters before they need sharpening.
how do you find a company to do this? Im in the US.
I would think that google would be a good place to start.
I would like to see one like this where you show how you choose where to set your charges and what to avoid. Have a great day.
I hear you Jerry but I don't really want to train my competitors too much, I know for a fact that some of those guys are very basic and not really competitors.
I didn't think of that, don't you guys have licensing and testing to get certified to handle explosives?
Oh, for sure, but the entry level is fairly basic if you just want to use safety fuse and plain dets - light the fuse, one hole at a time blasting, you add endorsements from there.
Jerry, If you want to learn how to have all of the fun! Go to school and pay a few hundred thousand dollars or more to learn it or join the Military and learn for free, well the Military isn’t free but you will learn how to blow the hell out of a lot of stuff! Blasting rock is an art!
Maybe there is a journeyman school for it near you or not?
I am also very sure showing how he does this would get him into a lot of T.R.O.U.B.L.E! The kind that will put you inside a place where you surely don’t want to pick up your soap if you drop it... best to buy another bar than caught bent over... and were you have to watch out for big bubba wanting to come be your very special friend! The kind of friend you never want unless your funny like a three dollar bill? and like that kind of thing?
Nomerc, I'm old, retired, ex-military, went to mining college but didn't get to finish and had the school that taught basic info about the subject. It was just curiosity on my part and wondering about how he read the rocks. I've run the drills, just never chose where to put them. I was on the crews that built the fort Knox gold mine outside of Fairbanks Alaska.
how many specific charge?
For the entire job, 56 charges.
@@demolitiondavedrillandblast what does something like this cost?