this post was submitted on 21 Apr 2025
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Engineering
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Mining engineers calculate how the walls and paths need to be sloped, shored up, and shaped to prevent collapse. This channel on YouTube has a lot of good content about stuff like this, but this video is about hole collapses and how they're prevented. Reminds me of the old engineering adage- "anyone can build a bridge, but it takes an engineer to just barely build a bridge." Same goes for anything we do. You can do a lot by over-building and just accepting inefficiencies, but in a case like this you want to excavate as much of the ground as possible so you want the slopes to be as steep as possible. Anyone can dig a stable hole that's like a pyramid where the slopes are very shallow, but engineers find exactly how steep you can safely get away with.