#actually this contributed to new yorks skyscraper boom in the 1920s cus the bedrock is really shallow there
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@thekinderwizard me an you infodumping to each other
the rant in the tags ended cus i reached 30 tags lol
pictured: nerd to nerd friendship
#didja know towers have these things called piles that transfer the load of the structure through giant concrete sticks into the bedrock#bedrock being the solid stone below the loose sediment an stuff that makes up the ground#so basically when youve got a really big structure you dont want to put it on the ground just like that cus youll end up with [tag limit]#the leaning tower of pisa and thats just not gonna work#because while it worked out fine for the romans sorta kinda it would not be good at all if this happened to a skyscraper#because we dont build them like that anymore#anyway so this leaning is caused by the uneven settling of the loose soil which towers are built on#its called earth settling and the rate at which it occurs exponentially decays#anyway so this is not good with towers and to prevent it you need to not build on loose dirt#but its very expensive and hard to dig all the way down to the bedrock and start pouring foundation#so the solution is to make really long concrete sticks and just shove a fuckton of these into the ground where theyll touch the bedrock#and thus the weight of the building isnt actually on the soil very much#so the settling isnt a huge problem anymore#and then you can pour foundation and slap a tower on top#there are different types of piles too#sometimes when the bedrock is really far underground its possible to use the friction of soil across a pile to distribute weight#and the friction of the soil across the entire surface of the pile would hold it up and support the structure#its generally not used for really tall buildings though because it cant support as much as full pilea#full piles being the ones that go all the way to bedrock#actually this contributed to new yorks skyscraper boom in the 1920s cus the bedrock is really shallow there#so piles arent nearly as expensive and its easier to build tall#of course its still expensive but not nearly as expensive as doing it in someplace with really deep bedrock like florida#and hell florida bedrock is absolutely dogshit awful at beinf bedrock#its fucking limestone and thats water soluble#which makes for pretty caves n shit but its the worst place to build anything heavy cus it likes to collapse#it also makes florida prone to sinkholes and the like#not very good#which is to say that florida is the worst place on the planet to build literally anything (glaring at tampa)#oh btw manhattan is built on a giant granite boulder of bedrock#which is fucking great for construction cus granite is hella durable
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