1 2 m in height or with slopes or other surcharges above the wall will need a toe drain.
How to build a retaining wall with drainage tile.
The success of your retaining wall depends on a level base.
Any reinforced wall or walls over 4 ft.
The design of a properly built retaining wall resists the force of the soil behind it and prevents caving buckling or leaning.
Use a shovel to cut up sections of turf and place them as intact as possible on a tarp for later.
Using a tape measure decide the length and the width of your retaining wall then mark off the area with the garden stakes and string.
Water that s allowed to build up behind retaining walls can damage a wall or cause it to give way.
A retaining wall is built to hold back a certain amount of soil.
Typically drain lines are installed at the base of new walls before the soil is backfilled.
The toe drain and the wall rock is designed to remove incidental water from behind the wall and is.
In all cases wall rock is located within the cores of the block and a minimum of 12 in.
Why proper drainage is important for retaining wall performance.
Design and build your retaining wall to slope at a minimum rate of.
Excavate a trench or series of connected trenches to accommodate the perforated drain tiles.
300 mm behind the block.
A retaining wall is intended to hold back soil when there is a drastic change in elevation.
However retaining walls are built with a certain capacity in mind.
Often retaining walls are used to terrace yards that originally had a steep slope additionally retaining walls can help create usable outdoor space as well as control erosion see landscaping a split level home low retaining walls are frequently used as planting beds and can add interest to an.
And the perforated drain tile collects the water and directs it away from the base of the wall escorting it out through its open ends.
Of packed impervious soil to help prevent water from seeping behind the wall.
Just below that is 8 to 12 in.