Backfill refers to the dirt behind the wall.
Retaining wall drain tile.
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.
Drainage third since most retaining walls are.
Slope the tubing from one end of the wall to the other or from the ends to the middle.
Together these four features will provide adequate drainage for most designs.
300 mm behind the block.
Base first a retaining wall must be built on a suitable base.
1 2 m in height or with slopes or other surcharges above the wall will need a toe drain.
Excavate a trench or series of connected trenches to accommodate the perforated drain tiles.
Block manufacturers as well as experienced contractors.
In all cases wall rock is located within the cores of the block and a minimum of 12 in.
Using a perforated pipe to allow water to enter through the length of the wall could be a good way to make sure.
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Use drainage tubing behind the wall.
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The process of making sure that a retaining wall drains properly is relatively simple but it is not very flexible.
This loose rock is probably more than other companies would use but we would rather allow more water to flow behind the wall and out than not have enough.
I thought the drainage pipe method could be an interesting choice.
Use fabric behind the wall.
It seems having a good draining system is important to help retaining walls stay in good condition.
Use a shovel to cut up sections of turf and place them as intact as possible on a tarp for later.
Check out this video for some simple instructions on installing a french drain behind an 18 to 24 tall retaining wall before it is backfilled with dirt.
Backfill second a retaining wall must have properly compacted backfill.
Fabric keeps soil from leeching out of walls.
Any reinforced wall or walls over 4 ft.
Fabric keeps rock and soil separate.
Cut holes into the wall to let water out.
Although there are exceptions most retaining walls require gravel backfill soil compaction pipe or toe drains and weep holes.