Partial dichotomy
| They put that into holes so the soil won't collapse around the workers.
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| Don't know the correct terminology, but is it the protective barrier inserted into a dug trench to protect Workers in the trench from a cave in......
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| shoring, when they dig holes deeper than _____. they put these in the holes to provide support , to keep the walls from falling in around the workers.
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Festina Lente
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| 6guns is correct - also called a "trench box" or "trench shield". needed if you are going into a trench deeper than 5' deep, along with an egress device (ladder)
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| I think it's a box that goes in a trench to shore up the sides. (I totally did not look at every previous post to mine.)
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Striker in waiting
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| I dunno, but I think it has to do with trenches and making sure the walls don't collapse. ETA: Damn. Orguss beat me to it. -Rob
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| So it's distinctly NOT used for trenches, or it IS used for trenches? I wish you guys would be clearer.  Thank you - I knew the answer was but a few keypad clicks away!
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| NEXT !
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| Double guillotine for multiple Sasquatchs |
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| Those are tie down straps used to prevent stuff from falling off of trucks. |
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