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I know for me it that would be hard for to "walk away" But your right it you got to hand it to the guy, no excuses.
He finally gave up. But you have to hand it to the guy.He took it like a man. He didn't make any excuses or try to blame anybody else.
No Thom, I didn't see the cuts. Did you? There was some pretty beefy columns in there though. It would have taken a bunch of scarfing to get it done.
The problem with shooting laminates is that the penetration values of the shaped charge will degrade by up to 50%. Shooting a 2" hot rolled WF is a lot different from shooting 2- 1" plates.
1Pyro said:
The Jack Frost sugar refinery in Philadelphia had charges setoff twice and didn't come down. May have been due to the fact that the blaster had no delay's and no kickers. The demo team started pulling one I beam at a time out and the building collapsed at 9PM from a gust of wind.
I called the shot before it happened! I requested many parties to review the shot before the fact based on curriculum vitae, or lack thereof, and was told "sorry, they are licensed"! There could have been ways to shoot the columns withoput kickers (too expensive though)! Factoring delays would have made no difference either. The "kickers" were non-existent and were in fact the reason for tis particular failure.
Blast goes Bust is atypical of people endeavoring to shoot buildings with less than appropriate planning. Those of us who have worked in Steel Mills know how resiliant the buildings are. Henceforth, they lend to a more substantial pre-weakening scheme. Not that those of us who have worked in Steel Mills have had failures...mostly related to some products! I have gone to shots and have seen some "up and comers" become "down and goners" because they didn't follow some of the most basic rules of shooting certain Steel Mill buildings, take out the ends before you shoot!
I have been throught that heavy melt building several times. The columns are built up and are pretty beefy. In the blasting world built up columns are a whole 'nother horse of a different color as opposed to hot rolled wide flanges.
The Jack Frost sugar refinery in Philadelphia had charges setoff twice and didn't come down. May have been due to the fact that the blaster had no delay's and no kickers. The demo team started pulling one I beam at a time out and the building collapsed at 9PM from a gust of wind.
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