Will this new wall hold/retain ?

Hi All!

As part of my current development, retain and build at rear, I am currently doing works to the front property. I've had a courtyard wall built to separate the new car bay locations from the new front courtyard area.The land is slightly sloping left to right, but my earth worker has done a good job at separating the levels for me.

Here is my concern. The left courtyard area is now a fair bit higher than the right hand side parking area and as such, I am concerned that this new wall will not be sufficient to retain the new concrete path that will be running along it on the courtyard side.

I've attached my own little sketch and some images. I'm not after an engineer's certification here, just some opinions! thanks in advance for your feedback!

 

Are you asking as you are concerned its not stable ? Doesnt that address the question ?

When I have done earthworks on land I have found council guidance helps. In one property they required engineering certs for a cut of 500m or a fill of 500mm or any combination. Basic retaining walls were approved between the cut and fill no drama. Mine was 400mm in some parts and 600mm in others so it wasnt worth ignoring.

 

As per your sketch the difference in height will only be one brick course? Should be fine.

 

While I wouldn't recommend going any higher I'd suggest that the 70mm between the base of the upper slab and top of the lower slab should be fine.

It's unlikely any serious loading will occur within 100mm of the wall to apply load to it.

 

By the last sketch
772mm of concrete should support a Titanic weighted car
(Glad i am not paying for all that concrete)

For the record, retaining wall under a meter, with a proper footing and wall tied back into the slab with a decent compacted fill medium underneath, shouldnt be a problem

 

I think that would be fine and could retain 300mm

 

haha the sketch is actually to scale, the 772mm is the height of the brick wall

 

Dunno.. I think trumps wall on the Mexican border will hold.

 

Chinese say they have a bigger one

 

and cheaper

 

Is there any rebar from footings through the single leaf wall?

 

Nope, only in the brick piers have a steel rod in the centre. Single leaf wall is tied into piers with two brick ties.