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?
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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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