Hi

I've built an 8m double thickness wall which is about a 1m high in my back
garden and runs parrallel to the back wall of my house. This acts as a
retaining wall for about 600mm of soil and hardcore topped with slabs. At
the side of this wall, I've turned a corner and built two more walls
perpindicular to the 8m wall. These are 1m apart and are a length of 2.5m. I
wish to build a concrete ramp between these, but can't find much info on the
method of construction.

Thanks for any advice.