Block wall on slab

[vala]

In the build up to having a new structural slab installed the existing slab has had to be broken up.

The groundsworkers have gone to town with the use of their breaker and created a bit of a mess here on a single storey block wall.

Had my builder round today who wasn't impressed at all, but whilst I wait for the structural engineer to visit (hopefully tomorrow) I was looking for advice if anyone has in order to rectify.

1 suggestion me and the builder made today was put needles through at intervals, and prop using mini acrows. Most likely need to create a solid foundation for the acrows.

Then remove all the earth and old slab, before digging a new footing underneath and building up with bricks/blocks for this wall to sit on.

 

Any other suggestions welcome whilst I sit and worry a bit about this stage!

[Mr Punter]

SE was a good plan.  What is the wall supporting?  Hopefully you will be able to add a decent amount of insulation under or on top of the new slab.

[vala]

It's a single storey block wall and the long part I believe has been created for the staircase stringers to fix into.

The short section has a small RSJ coming off it to the external wall. Looks like this is to provide support for the timber joists.

Above both sections, is a simple stud wall diving the bathroom/landing and bathroom/bedroom.

Got 200mm PIR going on top of the sand.