Quote:
Originally Posted by unanimity
forgive me if this has been addressed before, but how do they prevent destabilization the foundations of the surrounding tall buildings? id imagine the downward weight of the immediately adjacent buildings to push out into the void that has been created by the excavation of nordstrom tower.
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Deep excavation often only happens in places where the bedrock is close to the surface like in Manhattan. In most of Manhattan the buildings sit directly on solid bedrock so there is no chance the downward weight can displace what is basically solid stone. In places like Chicago where bedrock is deep below the surface they will support the walls with sheet piles when excavating. Also the buildings in those locations rely on large caissons drilled into the bedrock that support the buildings weight.
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