Watching the awful tragedy caused by the earthquakes in Turkey, and in general, the biggest problem is obviously removing the rubble to rescue people, why do they not install a crane (2+ days) and use mobile ones in the meantime?
In: 5
Because the piles of rubble is not stable. If you lift one slab, you might be removing the only thing that keeps another piece from falling and crusing someone who is still alive.
Think about putting a pile of books on the end of a ruler sticking over the edge of a table, , then hanging a weight from the other end. If you lift the books, the ruler and weight fall.
Biggest issue with using cranes or other heavy machinery in disaster response is it’s almost impossible to control the resulting debris shift. With people trapped under tons of unstable steel and concrete, the smallest unintended shifting or settling could crush survivors. There’s also the possibility of rupturing gas lines or water mains that are already damaged by the collapse. Generally you don’t start using heavy machinery until you’ve given up on finding any more survivors and the priority becomes debris removal.
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