I have order 4" treated round posts for a 1 meter retaining wall. I have been advised that the best way is to put a dry mix in to set them and batterened them from behind in 1 meter strips (like fences).
What i need to know is:
1) With the 4" round posts, how far should they be below ground?
2) I have reached the sub-base (solid rocks mostly) where the posts will go into, could i have a small trench say 150mm and build up a shutter on ground level of 200mm? So 150mm foundation below ground and 200mm above?
3) Would it be a good idea to use paving slabs concreted in against the earth wall before i put the posts in (To make in a lot stronger), then have a 5" gap between posts and slabs and fill with pea shingle for drainage and protection.
Thanks.
What i need to know is:
1) With the 4" round posts, how far should they be below ground?
2) I have reached the sub-base (solid rocks mostly) where the posts will go into, could i have a small trench say 150mm and build up a shutter on ground level of 200mm? So 150mm foundation below ground and 200mm above?
3) Would it be a good idea to use paving slabs concreted in against the earth wall before i put the posts in (To make in a lot stronger), then have a 5" gap between posts and slabs and fill with pea shingle for drainage and protection.
Thanks.
