How do they make the gigantic piles of rocks you see at construction sites? There’s some construction taking place near me and the pile of small rocks and dirt has to be a good 50+ feet tall to the very top, and its like mountain shaped. How does that happen? Does the bulldozer just keep pushing it all together and it keeps getting taller? Doesn’t it become a safety hazard for it to all collapse and bury the bulldozer? Im very confused about it, the pile in question seemed to have appeared overnight.
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They are probably using mechanized/hydraulic shovels, that can get quite high depending their size. And you normally pour the soil with care, to avoid too much pebbles and cobbles rolling down the pile.
Pyramid/cone shapes tend to be pretty stable without using any reinforcement technique: that’s why early civilizations liked them so much.
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