SIGforum
Silverdome implodes......almost....

This topic can be found at:
https://sigforum.com/eve/forums/a/tpc/f/320601935/m/4270060434

December 03, 2017, 03:21 PM
ensigmatic
Silverdome implodes......almost....
quote:
Originally posted by a1abdj:
... and they had 8 shaped charges that were supposed to cut the beams. Those 8 charges were all wired together and none of them fired.

I kind of figured it was something like that.



"America is at that awkward stage. It's too late to work within the system,,,, but too early to shoot the bastards." -- Claire Wolfe
"If we let things terrify us, life will not be worth living." -- Seneca the Younger, Roman Stoic philosopher
December 03, 2017, 04:23 PM
zoom6zoom
Didn't use enough jet fuel




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December 03, 2017, 04:27 PM
ulsterman
Someone said the reason it didn't work was the Stadium wasn't used to implosions until 1pn.
December 03, 2017, 06:11 PM
flesheatingvirus
quote:
Originally posted by a1abdj:
I was watching an interview with one of the demo
The explosions you saw were blowing the concrete, and they had 8 shaped charges that were supposed to cut the beams. Those 8 charges were all wired together and none of them fired.


That's why you use 2 independent firing lines for something like this. If the first fails, fire the second. I wonder if they had a single firing system, too.


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December 03, 2017, 06:22 PM
jjkroll32
Warm up the Thunderbolts from ANG 127th Wing over at Selfridge.

They could probably donate a little ordnance.


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December 03, 2017, 06:34 PM
detroit192
Let's see, Pontiac, abandoned building, faulty wiring...check the local metal recycling facility for a recent drop off?




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December 03, 2017, 06:35 PM
Rightwire
Yes the local news said that 1/2 the charges didn't detonate due to a wiring issue. Now you have an unstable structure and unexploded ordinance




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December 03, 2017, 07:45 PM
Sig2340
quote:
Originally posted by a1abdj:
I was watching an interview with one of the demo guys. Apparently they had enough but an unknown failure caused 8 of the charges to remain unfired. They do not know if it was damage, error, or vandalism.

The explosions you saw were blowing the concrete, and they had 8 shaped charges that were supposed to cut the beams. Those 8 charges were all wired together and none of them fired.


Which is why you don't daisy chain the critical charges.

If it positively has to fail because of explosives, each charge has a primary and secondary detonator, all on individual lines of det cord. Yes it's more expensive and labor intensive but you don't get hung up structures.

quote:
Originally posted by Rightwire:
Yes the local news said that 1/2 the charges didn't detonate due to a wiring issue. Now you have an unstable structure and unexploded ordinance


Ordnance.

Not Ordinance.

I see that mistake in DoD documents I review and it always grinds my grist.





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December 03, 2017, 08:05 PM
MikeinNC
nothing that ten tons of anfo and some diesel wont fix



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December 03, 2017, 08:52 PM
Rightwire
quote:
Originally posted by Sig2340:

quote:
Originally posted by Rightwire:
Yes the local news said that 1/2 the charges didn't detonate due to a wiring issue. Now you have an unstable structure and unexploded ordinance


Ordnance.

Not Ordinance.

I see that mistake in DoD documents I review and it always grinds my grist.


I'm blaming autocorrect on that one.




Pronoun: His Royal Highness and benevolent Majesty of all he surveys

343 - Never Forget

Its better to be Pavlov's dog than Schrodinger's cat

There are three types of mistakes; Those you learn from, those you suffer from, and those you don't survive.
December 03, 2017, 09:07 PM
ensigmatic
Offer me enough money and tell me what to do. I'll climb in there and fix it Smile



"America is at that awkward stage. It's too late to work within the system,,,, but too early to shoot the bastards." -- Claire Wolfe
"If we let things terrify us, life will not be worth living." -- Seneca the Younger, Roman Stoic philosopher
December 04, 2017, 12:04 AM
whanson_wi
quote:
Originally posted by ArtieS:
Think ya used enough dynamite there, Butch?

Evidently not...

You see, this is what happens when you bring the experts in, instead of letting men who are still 12 year old boys at heart do the job. I'm willing to bet that a bunch of Sigforumites with an unlimited energetics budget could have brought that place down (up?) no problem. We might have gotten half of Pontiac along with it, but the Silverdome would be gone baby, gone.


Meanwhile, on the ISS, one guy looks at another and says, "Hey! Did you hear that?"


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December 04, 2017, 12:16 AM
Edmond
quote:
Originally posted by Sig2340:
Ordnance.

Not Ordinance.

I see that mistake in DoD documents I review and it always grinds my grist.


I have a couple more for you that might grind your grits:

BIP it in place

CAC card...

Big Grin


_____________

December 04, 2017, 03:17 AM
trapper189
quote:
Originally posted by rburg:
Set up a beer truck with free beer on the side. Then make a deal that if they make it fall on the first try, there are strippers for everyone in the evening. That cheap ass dome wouldn't have a chance.


Free beer while the building stands or strippers, once, if the building falls on the first try? I'm thinking it's going to take a while to knock it over. Very complicated doncha know? Years of careful planning.
December 04, 2017, 05:44 PM
Rightwire
Apparently twice is the charm, more charges and a lot of checks and the ring is off the building.

Thus proving the old saying "most of life's little problems can solved by the subtle application of high explosives"

https://www.clickondetroit.com...ilverdome-successful




Pronoun: His Royal Highness and benevolent Majesty of all he surveys

343 - Never Forget

Its better to be Pavlov's dog than Schrodinger's cat

There are three types of mistakes; Those you learn from, those you suffer from, and those you don't survive.
December 04, 2017, 05:52 PM
nhtagmember
they still have a shitload of structure to knock over...looks like the grandstands are still standing...



[B] Against ALL enemies, foreign and DOMESTIC


December 04, 2017, 05:55 PM
a1abdj
I don’t think their intention was to blow up the whole building. They were just trying to get the high stuff down low enough to reach it with their equipment.


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December 04, 2017, 07:09 PM
Rightwire
The intent of the explosive demo was to bring down the steel ring that supported the dome. The rest of the structure will be taken down by excavator and normal methods. The ring apparently presented a risk to normal demolition and had to come down in one piece.




Pronoun: His Royal Highness and benevolent Majesty of all he surveys

343 - Never Forget

Its better to be Pavlov's dog than Schrodinger's cat

There are three types of mistakes; Those you learn from, those you suffer from, and those you don't survive.
December 04, 2017, 08:55 PM
Krazeehorse
Watched a lot of Supercross races in there. Back in the late 70's and early 80's they would have huge attendance Saturday evening and again on Sunday afternoon.


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December 04, 2017, 09:30 PM
Oz_Shadow
Went to White Castle. Got'er done today.