Backfill second a retaining wall must have properly compacted backfill.
Retaining wall drainage tile.
300 mm behind the block.
The toe drain and the wall rock is designed to remove incidental water from behind the wall and is not meant as primary drainage path for above or below grade water management.
I thought the drainage pipe method could be an interesting choice.
Drainage third since most retaining walls are.
Retaining walls are a seemingly simple enhancement to any landscaping project.
However nearly 80 of all residential retaining walls fail at one point or another because of poor drainage.
These are called weeping holes.
For a stacked block retaining wall that s no higher than four feet a trench filled with three inches of crushed rock will help keep the wall from shifting and settling.
When building a retaining wall lay perforated drainage tubing at the base of the wall slightly above ground level so runoff can drain out without undermining your wall find this pin and more on for the house by hank meadors.
Backfill refers to the dirt behind the wall.
Learning how to build a retaining wall can be fun with these helpful tips.
Any reinforced wall or walls over 4 ft.
Base first a retaining wall must be built on a suitable base.
This video shows you how to properly install a drainpipe behind your wall for prop.
For proper drainage the first 12 inches of space behind a retaining wall should be filled with crushed stone or gravel.
The exact depth of the.
In all cases wall rock is located within the cores of the block and a minimum of 12 in.
This is so that when water gets into the space it does not become bogged down in soil but instead can flow down the wall to the drains or weep holes.
1 2 m in height or with slopes or other surcharges above the wall will need a toe drain.
Use drainage tubing behind the wall slope the tubing from one end of the wall to the other or from the ends to the middle.
Cut holes into the wall to let water out.
Block manufacturers as well as experienced contractors.
Thanks for posting this information about retaining wall drainage.