GalileoG
Structural
- Feb 17, 2007
- 467
I am designing reinforcement for existing footings and the top of existing footings have to be excavated and exposed. The top of the deepest footings is about 2m below top of slab-on-grade. This is inside an industrial facility, so the less slab-on-grade I have to demolish the better (i.e. no open cut).
How would one go about excavating inside an existing building and retaining the soil without going for open cut but also minimizing settlement of the existing slab? There is equipment on the existing slab which would be sensitive to settlement.
What could be some of my options? There is about 5m of headroom. Geotech on the job is recommending micropiles secant wall, but this seems overkill? Surely there are other systems that could be appropriate for this case?
Thanks for your help!
How would one go about excavating inside an existing building and retaining the soil without going for open cut but also minimizing settlement of the existing slab? There is equipment on the existing slab which would be sensitive to settlement.
What could be some of my options? There is about 5m of headroom. Geotech on the job is recommending micropiles secant wall, but this seems overkill? Surely there are other systems that could be appropriate for this case?
Thanks for your help!
