3-wall (open) foundation? is it ok? or bad in practice?

[SalemSchool]

This is for a walkout basement.
 
Is it bad practice to have just 3 walls of foundation and thus frame the wall the walkout is on?
I'm wondering if this would be a lot of torque at the opposite corners (red circles) from the gravel backfill pushing in on the foundation walls (red arrows)?

(Note: there is a concrete frost wall below the wood framing on the walkout side)

 

See attached picture.

[Farrell]

Perhaps you could use 6" poured walls 2'-3' in on the rear corners, since there is no back fill at the daylight wall?

[SalemSchool]

The poured walls would be 8".

Do you mean like this:

 

[Farrell]

Yes, but they could be reduced thickness to match the framed walls. We do this quite often.

[NRST8TRKR]

We always pour a frost footer to grade on the daylight end and frame with a 2"x6" wall .

As was pointed out not enough fill at the daylight corners to stress the wall.

 

Have a great weekend,Ken

[SalemSchool]

Thanks guys.

 

NRST8TRKR, the reason I'm concerned about the stress on the walls is that there will be a retaining wall at the left and right sides of the walkout so the grade won't drop as much as typical, thus having a bit more pressure from the backfill.