Hydra Posted July 20, 2021 Share Posted July 20, 2021 Howdy folk, Just wanted to prepare a little for the future, Having a soil pipe run put in, as i'm on a slope, unfortunately, the soil pipe will be approximately 8-12 inches underground. My BCO is happy with 1" of concrete over the top for safety from spades etc, but I wanted to ask how this would fare if I were to later dig and lay a drive? Already 12 inches would seem to imply it'll be barely below the hardcore layer, so i'm a little scared of a) digging and b) driving over it. Am I being overly paranoid? Cheers in advance. Link to comment Share on other sites More sharing options...
markc Posted July 20, 2021 Share Posted July 20, 2021 What will the drive surface be? If it’s concrete then no problem at all as the slab will bridge the pipe run and cause no problems. If the surface will be paved or shingle etc then put a thicker cap over the pipe and you will need less hardcore in that area. Link to comment Share on other sites More sharing options...
Hydra Posted July 20, 2021 Author Share Posted July 20, 2021 32 minutes ago, markc said: What will the drive surface be? If it’s concrete then no problem at all as the slab will bridge the pipe run and cause no problems. If the surface will be paved or shingle etc then put a thicker cap over the pipe and you will need less hardcore in that area. Something permeable as I really want to keep building regs out of my life, for the rest of my life The intention was likely gravel - would you have a minimum thickness suggested for concrete under gravel and hardcore? Cheers Link to comment Share on other sites More sharing options...
markc Posted July 21, 2021 Share Posted July 21, 2021 7 hours ago, Hydra said: Something permeable as I really want to keep building regs out of my life, for the rest of my life The intention was likely gravel - would you have a minimum thickness suggested for concrete under gravel and hardcore? Cheers So not looking for a heavy traffic, heavy wheel load drive. In that case I would cap with say 4 inches of concrete over the pipe, around 12 inches wide (you could use pre cast slabs laid loose in case you ever need to get back to the pipe) then the hardcore and topping. Link to comment Share on other sites More sharing options...
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