[1] https://www.bz-berlin.de/archiv-artikel/hier-schwebt-ein-den...
https://en.wikipedia.org/wiki/Chicago_River#Reversing_the_fl...
They also rebuilt much of the city because it was wiped out during the Great Chicago Fire of 1871, and now the grid system is one of the most commonsensical ones in any major American city.
Chicago is an example of a (more or less) clean-slate engineered large city -- one that arose as a result of tragedy (fire) and failure (cholera).
As for your actual question, I'm pretty sure we (US, Europe, humans in general) could do quite a bit more than we do now if we had a reason to do so. (or were 100% sure about the results)
The technology in this video appears to be computer control of the many pistons underneath the raised block. I would estimate that could be done with roughly 1970s-level of technology.
It's still kind of a wonderful, imo. And it's awesome to be able to see it on video like this.
In the 60s a massive stone monument was moved 200m up in elevation to avoid being flooded by a dam.
Maybe the scale of these other moves were limited by not having the adaptable height jacks to keep everything straight.
How come these buildings don't have any of that? Or is the support in form of metal rods which these structures are freely screwed to?
https://parametric-architecture.com/shanghai-relocates-7500-...
The houses: https://shanghaistreetstories.com/?page_id=1288
For smaller buildings, you might jack it up, and put wheels under it to move it. For smaller buildings on perimeter foundation, you might unbolt it from the foundation to move it, and attach it to a newly poured foundation at the new location.
Repairing a sinking foundation is similar... Dig under, lift up as needed, fill in under the sinking areas, hopefully with something more stable.
Much taller buildings need deeper anchoring. Small buildings on sites with difficult soil conditions need deeper anchoring too.
https://www.e-architect.com/images/jpgs/leipzig/bayerischer_... / https://www.e-architect.com/leipzig/bayerischer-bahnhof-buil...
Also, how can they scoot some, but not all, jacks over on any given step, and alternate? I understand that rigidity isn't fully binary, but I figured that buildings were on the more rigid side.
Great snapshot of classic Shanghai architecture, blended with new, like this really cool coffee spot: https://www.archdaily.com/973430/birdie-cup-coffee-fog-archi...
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