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Thread: Barges loaded with logs tip over - GIF

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    Supporting Member Altair's Avatar
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    Barges loaded with logs tip over - GIF


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    They should have rafted up...

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    mwmkravchenko (Jun 20, 2023)

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    Supporting Member hemmjo's Avatar
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    OOPS!!! Well at least they did not sink. All they have to do it fish them out and reload them.

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    Shamoo, is that you down there?

    Interesting how 2 went the same way but the third slipped off the other direction. I wonder what caused that?

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    Supporting Member hemmjo's Avatar
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    Quote Originally Posted by piper184 View Post
    Shamoo, is that you down there?
    Interesting how 2 went the same way but the third slipped off the other direction. I wonder what caused that?
    Physics caused it.

    Difficult to get good measurements from the video, but it appears to me the load is not centered on the barge. Perhaps the load was offset to starboard on the front barge.

    In the image below, it appears the load is offset to port. With the center of rotation so low on the narrow barge, any list to port greatly exaggerates the imbalance. Once it gets to far, there is no saving it.

    Clicking the image will enlarge it



    Barges loaded with logs tip over - GIF-barge.png

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    Quote Originally Posted by hemmjo View Post
    Physics caused it.

    Difficult to get good measurements from the video, but it appears to me the load is not centered on the barge. Perhaps the load was offset to starboard on the front barge.

    In the image below, it appears the load is offset to port. With the center of rotation so low on the narrow barge, any list to port greatly exaggerates the imbalance. Once it gets to far, there is no saving it.

    Clicking the image will enlarge it



    Click image for larger version. 

Name:	Barge.png 
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ID:	45620

    From what I have studied in the past is that logs that are transported by loading onto a ship or barge, the transporter is designed to unload that way. That's why one barge tipped one way & the next one the other way. I would cause too many problems for all to unload on one side.

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    Supporting Member mwmkravchenko's Avatar
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    Quote Originally Posted by Wildwilly View Post
    From what I have studied in the past is that logs that are transported by loading onto a ship or barge, the transporter is designed to unload that way. That's why one barge tipped one way & the next one the other way. I would cause too many problems for all to unload on one side.
    Exactly. This was on purpose. It's how they unload the barges.

    Mark

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    Supporting Member hemmjo's Avatar
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    Totally different situation...


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    Supporting Member hemmjo's Avatar
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    This is a better video with explanation of the process. Notice the ship/barge is still listing to the dump side after the logs are off loaded.


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    Quote Originally Posted by hemmjo View Post
    This is a better video with explanation of the process. Notice the ship/barge is still listing to the dump side after the logs are off loaded.


    It is still listing because water is pumped into that side to make it list to unload the logs! It will be corrected after that side is pumped out.

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