general rules for filling in retainer walls

[ceaser]

Hi guys just put up a retainer walls 600 high and 4.8 long and 500 wide
Whats the ratio of filling the wall.
Amount of rock sand if needed and soil.

[dazzler]

Hail,

Dont know exactly but I always put in 100mm poly ag pipe with the holes in it and backfill with bluemetal to just below the top.

[joe greiner]

Perforated pipe at the bottom as mentioned. Backfill should create a vertical drainage "blanket" of rock about 100mm thick, separated from the rest of the backfill (any material, more or less) by a sheet of filter cloth. Build up in thin layers of each for ease of construction.

Joe