I'm having some difficulty finding information about gabion retaining wall construction.
We're building a 2' high gabion cage wall to hold back 2' of flat topsoil backfill.
There are two aspects I can't find definitive information on:
1) Drainage pipe/plane. Is that needed at all? I've built block retaining walls before where you want to backfill the wall with a french drain, drainable rock, and then filter fabric. But it seems to be a gabion wall, in itself, is a drainage plane. Is there any reason to just not line the back side of the cage with filter fabric before filling with rocks?
2) Deadmen. Are they generally needed for 2' walls? And, if so, any ideas how to do that with a gabion cage? I was thinking of hammering in some metal fence stacks 4' back, and then just wiring them to the cages. But not sure if that's even worth the effort.