Posted: 11/05/2017 at 15:14
Sound and looks similar to how my 'lawn' was before i dug it all out.. I had maybe 5 skips of rocks, bricks, rubble and glass.
You don't actually need to dig too deep if all your worried about is putting in some turf.
What i found which worked well on my (heavily compacted and clay) soil was to dig a spade all over, sieve the soil to remove as many large rocks as possible, get rid of all the old turf. Dig in 50lts of compost per meter sq ground, then rake, rake, rake... keep raking (there is a technique to this) to level level level. Walk all over with your heals.. then rake some more.. keep doing it until it feel slightly compacted and it's free of stones. If you need to remove old soil then bag it up and chuck it out...
Order your turf only when you're ready to lay it. Lay you turf and give it a very good watering.. keep it watered everyday for the next 6 weeks or so..
I didnt put any sharp sand in mine, because like you said.. i read it turns clay to cement..