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Grain silo

D&GExcavating

Senior Member
Joined
Sep 1, 2010
Messages
341
Location
Minnesota
Look closely at the way the silo was falling, it wasn't real apparent, but that silo started to fall slightly towards the operator and the Ex. If that silo had twisted and crumbled just a bit more it would have been right on top of him.

The part I didn't like is according to his logo on the excavator, he does demolition.
 

Randy88

Senior Member
Joined
Feb 2, 2009
Messages
2,149
Location
iowa
Looks like an excellent way to get killed to me, and the even scarier part is between the one doing it and the one taping it they both were proud enough to put it on youtube!

I'm no expert by any means but I"m also thinking the silo isn't 100 years old either, first off back then they didn't look like that and also were not that tall or big around either in 1911, so I"m pretty sure they got that wrong as well. It looks in the 1950-1970's era to me by the shape of the chute and bands and staves.
 

D&GExcavating

Senior Member
Joined
Sep 1, 2010
Messages
341
Location
Minnesota
He didn't even take off enough bands in the first place. That's why it dropped down and just sat there, which isn't a good situation in my opinion. I was always told to take off bands as high up as you can possibly reach, and that's the way that I have always done it.
 

EZ TRBO

Senior Member
Joined
Jul 21, 2007
Messages
862
Location
USA
Occupation
Aggregate Utility, Maintence Welder
Have watched many silo demo vids on the tube and I'm really not a fan of using an excavator to take one down...point being aint a excavator around that can move fast enough if it is comming down. There is a risk involved in every demo but for over 50 years our family did it one way, and that was taking lots of time looking everything over and very carefully choosing your approach. Using a dozer was what we did...and it worked for us. Taking enough rings off first, and making your notch large enough to start with is key...its like notching a tree...once it starts to go you really can't safely go back in and take some more. Was at one once where another guy was doing the demo of the silo and doing the sledge hammer routine and didn't take enough rings off, didnt go wide enough on his center of his wedge and when it did go it sat into itself at about a 75 degree angle. when he ran up to bust more staves out it turned in mid crash and went right towards him as the back side had fallen out. He made it to the fence and the roof landed about 5 feet from him.
 

Randy88

Senior Member
Joined
Feb 2, 2009
Messages
2,149
Location
iowa
We always cable them at the top first before doing anything and then hook that to a dozer making sure we have about 50% longer cable than the silo is tall, we hook it to several bands in case one or two snap, we don't use the top most ones either, about 5-10 feet from the top so it doesn't pull the top few rows of staves off, then you have something hooked to the silo to help give it directional fall and also in case it decides to just do a dance and sit back down on its staves again and do nothing, you can still give it a gentle tug and over it comes. A lot safer than guessing what it'll do and where it'll go, never yet had one go somewhere I didn't want it to or hang up and just sit at some weird angle. We also use a dozer and chains to pull the wedge out, that way once your set up, nobody is even close to the silo, also making sure you have enough chains to be far enough away to start with, as for taking bands off to allow for a larger wedge, that depends on the silo and what condition its in and what kind of staves its made out of and use your best judgement as to whether you do that or not, sometimes we do other times not. I've sometimes used several cables to pull them over, hooking them to several different set of bands towards the top and have someone standing outside to direct traffic as to who pulls and how fast to pull but most times you only have to have the cable dozer drive maybe five or ten feet and the silo is down laying on the ground. By far the safest way to do anything I've ever found, that way nobody is even close to it if something goes wrong and you have some control over where it goes and how and also if it starts to dance as it comes down you can speed up the dozer to get it to stop and just fall where its supposed to go, no different than pulling a tree over with a cable as your cutting it after making the notch first, with the leverage you have hooked up high it takes very little effort to get it to go where you want it to, and out of the thousands of tree's we've cut down we've never had one we cabled go the wrong way and nobody ever has gotten hurt either, it takes good communication and have those doing the operating do what and when they are told to do it and have one person directing traffic and giving orders and if something ever would go wrong at least nobody will get hurt, things can be repaired or replaced if something weird happens but if nobody gets hurt or killed consider it good day and move on and learn from the experience.
 
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