Temporary shoring - anchored sheet pile walls
Temporary shoring - anchored sheet pile walls
(OP)
Are tie backs legal under neighboring adjoining building foundations? Is there any code criteria or protocol that control this form of construction ? I.e. a construction variance, etc.






RE: Temporary shoring - anchored sheet pile walls
Next, it is not a good idea to undermine an existing foundation to construct a deadman for the tieback (you have to tie it to something).
Don't even consider using the adjacent building foundation as the anchoring for your tieback.
Make sure you do a complete documented condition survey of the adjacent building prior to placing any sheet piling. Put crack monitors on all existing cracks.
Assuming you are using a vibratory hammer for sheet pile placement, you can significantly damage adjacent buildings from the vibration of insertion and extraction. Plan to monitor vibrations in the soil adjacent to the existing building and place accelerometers on the building so that levels of vibration felt by the building and foundation can be recorded, both for protection of later claims and for stopping the process if vibrations are excessive.
RE: Temporary shoring - anchored sheet pile walls
I have a contractor who says this is "standard practice" in our area.
They are using grout injected tie backs under the adjacent buildings.
I was hoping there was code ASCE, IBC etc. I found some code statements for encroachment on infrastructure beyond the limits of the project's property.
RE: Temporary shoring - anchored sheet pile walls
Suppose their grout injection raises the building foundation, or displaces a pipe, or raises a floor slab. If I were the owner of the property I'd go after the contractor, after you for allowing it, after the building department for improperly protecting the property (yes, I know they can't generally be sued, but there are special cases that allow it)...etc.
Don't let them do it. The only reason they currently do it is because they have been lucky. Don't let their luck run out on your project.
RE: Temporary shoring - anchored sheet pile walls
RE: Temporary shoring - anchored sheet pile walls
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RE: Temporary shoring - anchored sheet pile walls
RE: Temporary shoring - anchored sheet pile walls
BA
RE: Temporary shoring - anchored sheet pile walls
All done without permission of adjacent property owner.
RE: Temporary shoring - anchored sheet pile walls
Anchored walls will deflect causing lateral movement of soil either during installation or at rest which has to be addressed.
How is this achieved?
RE: Temporary shoring - anchored sheet pile walls
"Temporary shoring" is not necessarily removed. The anchors are classified as temporary if they are not required for support of the finished retainment. Sheet piling is often left in place as lost formwork for reinforced concrete retaining structures.
RE: Temporary shoring - anchored sheet pile walls
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