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Rubble foundation wall

Rubble foundation wall

Rubble foundation wall

(OP)
I am dealing with a foundation wall around a sidewalk vault.  The wall is made out of stone and is 48' long and 9'tall (grade to underside of sidewalk beams).  A 20' wide section is leaning 1 or 2 inches towards the vault. We need to support this wall.  The owner wants a cheap solution.  All the work will be carried out from below (the basement) so as not to disturb the sidewalk above.  Any good ideas???

thank you

RE: Rubble foundation wall

Does the vault extend into a basement?

If so, what separates the basement from the vault?

Does the vault still have utilities?

Some possibilites could be:

Build a temporary block wall for a bulkhead and abandon with flowable fill in lifts or cellular conc.

Internally brace with rakers

Tieback the wall

Vertical beams extending from base of vault to sidewalk. Install lagging betweeen the beams and backfill with gravel.
this will require brackets on the sidewalk beam and vault floor.

RE: Rubble foundation wall

(OP)
Thanks clayR.
The vault is separated from the basement with brick wall.  I do not want to use concrete to fill the space because the concrete will deteriorate the brick.  I am leaning towards using rakers however it may be difficult to attach to wall since the wall is rubble stone.

RE: Rubble foundation wall

ick2

Yes, attaching will be a problem, as well as point loading.

could a shotcrete beam be constructed on the face of rubble wall?

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