The soil does a magnificent job of not only controlling any fly rock but killing the noise. In days gone buy I would always use a stack of blast mats. these controlled the rock bust let a lot of noise through and people would often complain and were sure that their neighboring building would fall down as a result.
On discovering the ground's full of solid rock, why don't those planning these buildings just say "ah stuff it, just get Dave to blow the lumps off & we'll put the foundations on top"?
Dave, with the short run time of the generator, I was wondering if you could do a set-up using a portable outboard fuel tank to feed into the generator fuel tank or by-pass it all together? Given all of the other things that you can repair or modify, I don't think that you would have a problem with making it work? Mark from Melbourne Australia
I was thinking the same thing. Should just be a rubber hose from the tank to the carb, so should be easy to strap a boat fuel tank on the top and run the hose down to the carb.
I dont suppose you have ever been blasting a job and found the odd piece of opal here and there have you??and there and there and there??? It would scatter wouldnt it...............
Your drill rods shear because they are too hard. The harder something is the more brittle it becomes. A piece of tie wire can be easily bent into knots. but the same wire if heat treated will become super hard and unable to be cut with side cutters, but if bent will snap like glass. It's a trade off with drill rods. You want it hard so it does not twist or bend, but not so hard that it becomes brittle. They just have to find the in between point.
On the shafts he wishes to salvage, cutting them back a ways beyond the highly stressed broken end that may already contain the start of micro-fractures and drawing them back a couple points near the end to be machined might be worth a try. Rockwell testing a couple new rods, when they are new, and not work hardened and chewed up would give a starting/reference point for potentially more successful salvage attempts. That would entail a double draw for this highly stressed steel , bringing them to the desired tempering heat , soaking there, and then letting cool, twice.
Dave !! I love the new delivery time for the videos 🥰❤️ that hole in your previous video was an absolute nightmare. It just kept going down, more rock.. down.. more rock.. and so much mud. Today’s video is exciting AF 🤣❤️🥰
The witness tubes are a neat trick. What is your average shot failure per 1000 holes drilled? It seems like you rarely have a failure by the video evidence.
Very low detonator failure rate Ken, probably only had 2 in nearly 30 years and 10's of thousands of dets. Had a few more failures due to shock tube damage during covering, pretty rare event though, the witness tube method lets you know real quick if there is a problem.
I guess you’ve got to be a “jack of all trades” in this job. But having a background in electronics/electrics is a real bonus. Thanks for sharing all the ups and downs on this one. Looks like up Ballarat way. Cheers. Keep an eye out for any gold nuggets! 😉
@@demolitiondavedrillandblast An old timer told me that anytime you do a big rock job you should consider getting some samples assayed if there was mining around there. Someone else is already paying you to mine it, no additional permits or mining bonds needed. It's free money if you get lucky.
as soon as I saw the view at 31:31 I recognized it as the road into Ballarat, in the background on the right is one of the Mill Markets, love that place. Considering Ballarat's history I'm surprised the old miners didn't dig every inch of where you were, maybe granite was a tad too tough for picks and shovels.
When I was doing the site next door 2 years ago, there was crevice between two rocks that I recon had been cleaned out by the old timers, they had even done some blasting with black powder to move some rock to aid access - ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-JxCJP_bVSEI.html
Really enjoyed your video, found your location on Zenith Drive, looked back on google street view to 2009!!, area sure has changed built up a lot since then. cheers, Chas, uk.
Do you blend the jelly on-site? Children could be playing ten feet away from your blasting! Such a professional! So safe and uneventful! Clean right across the level you're shooting for. I know, sometimes rock has it's own mind.
Also, nice work fixing your own electronics! I fix industrial stuff and blast as a sideline. You can't do this on a budget without a lot of DIY repair knowledge.
I'm no engineer. Best I could find on google is talk of annealing improving fatigue strength in some steels. Maybe the manufacturer can share you more details about your rods, maybe they do processes only on certain parts of the rods. Maybe it's picking up extra stresses from the machining? [I'm assuming it's failing at the newly formed taper] I've only played with glass, but not a lot with steel. Glass always needs annealing or it becomes very brittle. So 'annealing' is my answer to everything ;)
The bleed by on your auxiliaries for that drill head must be frustrating. I’m watching that drill head relax almost instantly after you bring it all the way up.
Another huge and large scale job and some pretty deep drilling - always wondering just how so many of these monstrous rocks ever got there! Interesting geological conundrum sometimes. Often wondered how those vacuums survive all their use - glad the field fix worked out. Great results Dave - good many tons of pieces to haul out! :)
That was very cool photography. Being curious I am trying to decide what is better hand drill or excavator. It seems that if you have to get on and off all the time that would be hard on the knees. But by doing it by hand would tough on the whole body. You are in better shape then me what ever you use. :) Thank you and have a great week.
With all that rock around there, what how do they handle underground sewer and water systems and hydro cables? A hell of a lot of drilling and blasting I guess
Thank you Dave. You sure save time and money when you can do your own repairs. I studied appliance repair refrigeration and electronics in college so no repair bills. LOL.
"my real job is electronics, I just blow stuff up for fun!" We are on to you Dave! If you have a misfire, could you put a detonator/initiator on the end of the witness tube and back feed it, or are the connection one way only? (I think the delays are one way, so I am guessing it wouldn't work?) And that looks like it's right next to a certain Dealership from a previous video.
Hi Dave, This was a huge job! Lots of deep holes & lots of booms! With a job this big - something is bound to break! Thank goodness the vacuum motor & drill rod wasn't to terrible. The "witness tubes" are pretty neat! Never seen that before - certainly a great idea for safety!! Is this job done - or is there more to drill after all the broken rock is removed? Take Care, Jim
Ah.. yeah... stuff always breaks, that is just part of it. The witness tube just seemed like a logical thing to do (I came up with the name for it) a few people have picked up on the idea now.
Certainly not a lost art around me Jim, I don't know how you can have a blasting business without a hand drill. Does my head in when I see a few days and enormous amounts of earth being used to build ramps up to a high rock so the big rig can get up there, when I can just climb up, tie on and get it all done in a few hours with a hand drill.
If you notice the site is surrounded by other large commercial buildings, on a business estate, so in all probability this will be developed into a factory/warehouse with a large building and plenty of concrete hardstanding for vehicles and equipment storage facilities. Mark from Melbourne Australia
Outstanding content Dave! A big job for sure. Glad to see you using the excavator mounted drilling rig instead of riding the red dragon until you sing soprano. lol Very good editing what I'm guessing was a lot of footage. The colliery of Murphy's Law states: The further from home the job is, the more things will break down. Hope you and your drilling rods get a well deserved break.
Almost surprised that it's cheaper to blast and remove the material than to engineer the building higher and let others pay to fill it in with rock they want to get rid of. Deep 38 mil holes... the excavator drill saved you at least two years of premature aging there. Note to self: Don't be reincarnated as an excavator bucket in Australia, the chunky dirt does them naughty! Looks like you have a good eye for how much dirt to pile on, plenty to keep everything nice and contained, yet little enough to avoid moving dirt for no good reason all day. :)
Hello Dave that was absolutely fantastic the way all that rock just broke up for you 😀 👏 👍. Thank you for the video mate. I was thinking about your drilling rods. Have you tryed heating them up to normalise the steel, then work it and then heat it up to hardened it. It was just a thought see you again mate 👍.
I own a truck load of blast mats that I rarely use, reason #1 - I have to take another truck load to and from the job (employ an extra person) when in nearly every case the soil is already there. #2 The soil provides a higher level of protection (provided you put enough on). #3 Blast mats might stop flyrock but they do little to manage the blast noise and it is the noise and over pressure that brings complaints (and unwanted spectators). #4 I no longer have to spend my weekends repairing blast mats. Thanks for watching.
Pulman Urmator S26, recently bought out by Husqvana, now Husqvana S26, top unit, comes with a test certificate stipulating 99.994 percent capture @ 0.3 Microns.
These are "R25" rods with a H22 x108 shank, the R25 pertains to the 25mm rope thread onto which the drill head attaches. I was using a 2.4 and a 3m rod.
hey! you need a ilmeg vaccum cleaner for your air drill rigg, skip the electrics and just go regular air pressure since you already have air with you !!! i use one on my hydraulic drill rigg that i conncect flushing air to and then i have left over air for the vaccum cleaner! aprox 2000 dollars
Thanks for the tip Rusty, I have experimented a lot with air powered venturi systems - I almost bought an Ilmeg some time back. I guess that the decision maker for me was diesel consumption. I have a air powered venturi vac system on my ROC302 AirTrack and it is a beast, it will suck my clove off easily but it uses about 150 CFM.
@@demolitiondavedrillandblast yeah its alot for the older rigs, isnt getting a new used commando or so a better option, all in one, remote controlled, no hand driling for busting your bodie upp? and im sure more better on fuel. i get about 350 m3 drilled upp for 90 liter of fuel and less then a day. but im not sure how the industri works down in aussie land :)
I would love a commando Rusty, can't justify a new one and good used ones are few and far between in Australia it seems. The drill mast that I have fitted to the 3.5 Tonne Kobelco is good but it has some disadvantages compared to the Commando, primarily being a pneumatic and not hydraulic drill and no independent rotation motor, no East West adjustment on the mast is also difficult sometimes. But it has drilled a lot of holes +++++.
I just got back from 6 days out on trail - super fun running a Stihl FS240 brush saw for 6 days. That was relaxing. As was this vid DD, seeing some explosive therapy.
I'm always relieved to see the excavator doing the drilling. I know there was a little hand drilling here, but over the years, Dave's body has taken a pounding from much hand drilling and to see him still doing so leaves me with an uneasy feeling ... on his behalf! Nice to see those massive goolies reduced to manageable 'rip-rap' Very satisfying!
full length movie feature! excellent. 29:16, the steel in your drilling rods will be very special alloys drawn so the crystal structure is along the shaft. this and the very special hardening process will tend to make it brittle when using it off-purpose. i always look at your rods and reckon they would make great non-flexing fencing/post hole digging bars but how many such bars does a person need? you could turn a bar into a lot of cold chisels.
Thanks for the insight VSV, the do make a good edging tool - you take a 1.8m rod and weld a brickies bolster on the end and they are great in hard ground or clay.
Love the video man! Hey so I do storm shelters in garages. Ive run into some really hard rock lately in Nashville. Do you have any idea what compound i could use or something that would help me crush the rock. Figured you would be the man to know. Thanks!
Dave, for some reason, your channel vanished for like a year on my feed... I feel anxious without my 'blowing shit up' therapy... So happy to have you back...more, making big rocks into little rocks please sir, and thank you
Great Video once again! loved the sounds when running in Slow Mo! Sounds I never heard when I was blasting! But I'm old and did not have Slow Mo on my phone.Oh, I didn't even have a cell phone back then!
Thanks for tuning in William. It is quite a complicated task to put sound with the slow-mo and too me ages to master it. The slow-mo camera does not put any sound on the video so I have a separate sound recorder and stretch out and pitch shift the sound and add it to the slow-mo footage. Thanks for watching.
Man you should either do 2 videos at a time one edited nice like this and the other with the raw sounds of the drilling and other things you do. New follower, Great stuff!
@@demolitiondavedrillandblast On those stuck ends in the drill head, ic weld showed a good trick of inserting a short tube or pipe into the hole, then welding it to the broken part. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-tFazPSVw8sw.html
Good to see you have plenty of work available. It is a real bummer when you have to work away from home. Check out Kurtis Allen with Cutting Edge Engineering, not too far from where you live, I think. He is as close to a genius as you can get when it comes to types of steel, welding, and machining. He might be able to help you with your drill rods as far as ends snapping off, reusing old rods, that sort of thing. Thought I would toss that out just in case you might want to pursue that avenue. Take care, be safe. Cheers.
@@mrcamelpmw Well, I wasn`t sure exactly where Dave lived and only a general idea where Kurtis is. But, thanks for going to the trouble of pointing that out and showing the exact mileage. I am sure everyone will not make the same mistake I did and toss out an idea to help someone, certainly not with the Hawk of Oz monitoring comments for the slightest error or irregularity.
For a 1.5m deep hole of 38mm, 1.5m space is too much, 1m would be better and you would want about 500 grams max. I would not consider a 1.5m space unless the hole was more than 2.4 deep.
Monster of a job and far from home, I hope this made you at least $2k/minute of video. ... I'm surprised you don't have a helper. Valuable stuff to be learned by hanging around you, it seems. Enjoy the cooler weather!
"$2k/minute of video." That will be the day 42, RU-vid hates me and tries to bury my content because they have profiled me and discovered that I am not one of them.
