1 2 m in height or with slopes or other surcharges above the wall will need a toe drain.
Retaining wall drainage tile.
Base first a retaining wall must be built on a suitable base.
For proper drainage the first 12 inches of space behind a retaining wall should be filled with crushed stone or gravel.
It seems having a good draining system is important to help retaining walls stay in good condition.
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.
Using a perforated pipe to allow water to enter through the length of the wall could be a good way to make sure.
Backfill second a retaining wall must have properly compacted backfill.
Drainage third since most retaining walls are.
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.
300 mm behind the block.
These are called weeping holes.
The exact depth of the.
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.
Cut holes into the wall to let water out.
This video shows you how to properly install a drainpipe behind your wall for prop.
Thanks for posting this information about retaining wall drainage.
Any reinforced wall or walls over 4 ft.
Block manufacturers as well as experienced contractors.
Learning how to build a retaining wall can be fun with these helpful tips.
However nearly 80 of all residential retaining walls fail at one point or another because of poor drainage.
Retaining walls are a seemingly simple enhancement to any landscaping project.
In all cases wall rock is located within the cores of the block and a minimum of 12 in.
Backfill refers to the dirt behind the wall.
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.