4 ms·

I was thinking about this as well. I assume you leave the foundation in place and jack up the structure. So you would remove sections of the structure to plac

I was thinking about this as well. I assume you leave the foundation in place and jack up the structure. So you would remove sections of the structure to place a jack of some kind and then once enough jacks were in place crank them all at once.

m4rtink 6y ago
Exactly, any sane structure is built with some redundancy so you should be able to temporarily remove a column or piece of wall to install the jacking equipment and then do the job. For the tokyo station building, they simply lifted the building a bit and then placed it on seismic isolators. Can be seen on page 14 of this: https://www.ejrcf.or.jp/jrtr/jrtr61/pdf/6-15_web.pdf https://www.ejrcf.or.jp/jrtr/jrtr61/pdf/6-15_web.pdf Or for the Kansai International Airport the huge terminal building was built on jacks from the start the artificial island it was build on settles at an unequal rate: http://www.kansai-airports.co.jp/en/efforts/our-tech/kix/sink/hudou.html http://www.kansai-airports.co.jp/en/efforts/our-tech/kix/sin... They measure the different parts settling and then have a bunch of guys that will go to the affected section and jack the columns appropriately.
mtnGoat 6y ago
They cut holes in the cement foundation and slide beams across the entire house, then lift it up. Back trailer under house, through another large hole cut in the foundation, lower house onto trailer and drive away. When I was a kid, I watched an entire neighborhood get moved when a Walmart got built across from my grandparents. Moving the houses was some kind of give back, after citizens sued for years trying to prevent it.