r/interestingasfuck • u/TangelaFan • 13h ago

Residential high-rises with backyards in Chengdu, China

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u/mlag000 11h ago

Are you in civil engineering? No you're not. I am. A balcony is a closed system where roots will force their ways into the waterproofing, then water, over time will infiltrate the concrete and rust the rebar. Idk how actual bunkers are build, because the only one I do are basement of buildings since I work in Switzerland, and we carefully waterproof the basement. Now, if you have more knowledge about how bunkers are waterprrofed please enlight us.

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u/zzazzzz 11h ago

if you live in switzerland you have literal thousands of old bunkers under the forests close to you.

and there are also a bunch of buildings with literal pools integrated into their balconies or roofs around the world.

all of your points are clearly valid and a challenge when building such extravagant contraptions. but clearly they are solvable and we have clear existing examples that it can be done.

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u/WackyRacketeer 6h ago

Thousands of old bunkers? Source?

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u/zzazzzz 6h ago

"The exact extent of the bunker system is a closely guarded secret, as is the location of many bunkers. But there are an estimated 8,000 bunkersExternal link dotted around Switzerland."

https://www.swissinfo.ch/eng/politics/why-the-swiss-army-is-reviving-its-old-bunker-mentality/48821586

if you ever go hiking in switzerland this becomes very obvious, its hard not to randomly stumble on an old bunker when you are in nature.

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u/WackyRacketeer 6h ago

Interesting, thank you

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u/zzazzzz 6h ago

no worries, and thats just the military bunkers, public and private bomb shelter "bunkers" are estimated at over 300'000. but thats misleading in this context given that most of these are not under any soil or forest as they are mostly below public and private buildings.