[font=Verdana]Good article. I saw an article a couple days ago about a company want to either move or start a ship dismantling yard in [/font][font=Verdana]Oregon[/font][font=Verdana] and that they have something like 20 or so ships to bring up from [/font][font=Verdana]San Francisco[/font][font=Verdana]. Sounds like a good business to be in and with the price of steel. Thanks for sharing![/font]
2:19 PM
October 7, 2005
James,
Following is an article he e-mailed me. In this particular operation they slice the ship vertically. The guy mentioned in the article also owns Mercer Wrecking and Recycling in New Jersey
1:45 PM
October 7, 2005
It's a movie about navy SEAL's. Terrorists blow up a bunch of offshore platforms to disrupt the global oil supply.
I was thinking about it and i imagine a water jet could be used to cut the ship up too. The hull of aircraft carrier Coral Sea was cut up using a low pressure water jet. The steel thickness was 8-10"
10:43 AM
October 7, 2005
I will get some for you. He also gave me some 3D models. He took a picture/LIDAR image of the legs of my platform. Each leg consists of a piling and jacket with the interstice filled with grout. It can tell me the exact thickness of the steel for both the piling and the jacket which allows me to order the right piling cutter for the job without having to err on the heavy side and overkil lit. This in turns allows me to reduce the amount of explosives which in turn lowers the fish kill probabilities which makes the environmental people happy.
The last platform this Dutch company dismantled they used too large of a charge and it belled the piling out (like the end of a a bugle) and they had all kinds of trouble trying to pick it
They use wire saws mounted on tracks on both sides of the ship and they can slice right through it. The debris removal operations follow the cutting operations so as the ship gets lighter it floats higher and they keep repeating the process.
I would love to see some video on that or at least some pictures.
11:03 AM
October 7, 2005
As an interesting sidenote on the structural analysis x-ray systems, they told me that they ae using the system a lot in shipbreaking operations. They x-ray the entire ship, prepare a 3D Model on Autocad and then plan where they are going to cut the ship. They use wire saws mounted on tracks on both sides of the ship and they can slice right through it. The debris removal operations follow the cutting operations so as the ship gets lighter it floats higher and they keep repeating the process.
4:34 PM
October 7, 2005
I will be blasting an offshore platform shortly now that the hurricane season is over .It's for an upcoming movie and basically all I have to do is topple it into the water. They wiill have a bunch of pyro going off. It is actually kind of neat because in order to dispose of the structure they need to remove all of the topside structures then rebuilt them into a movie set. Kind of like a cowboy movie set where the Western Town is nothing but one dimensional facades. Anyway, I ran into a couple of guys workking on a neighboring rig who were using lasers to perform a structural analysis.
From time to time, demolition contractors are called in to demolish damaged structures. By using this technique, lasers are used to measure each member and compare it to the original blueprints or as-builts to determine how much it has deflected. Nobody has to get near the structure and it can also determine which structures are under tension or compression. Here's a little blurb if you are interested.
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