Contractor came up with this temporary shoring by others for enclosing a patio roof and pouring a new foundation wall for support.
Before
https://res.cloudinary.com/engineering-com/video/upload/v1522428318/tips/IMG_3730_nerprb.mov
After
Has anyone run into this particular unit before and have any information on block sizes, compressive strength, etc.?
Denver, CO house built in 1920's
Thanks!http://files.engineering.com/getfile.aspx?folder=86a256aa-c85c-4108-ba89-b27adf3f4c35&file=1116171318a.jpg