How To Build A Retaining Wall With Drain Tile
To 50 ft depending on how much rainwater is expected to run down to the wall.
How to build a retaining wall with drain tile. Water that s allowed to build up behind retaining walls can damage a wall or cause it to give way. The success of your retaining wall depends on a level base. Install drain tee fittings and a drain grate every 25 ft. If the drain tiles are implemented primarily to protect the foundation from subsurface water dig the trench up to 6 feet deep.
1 2 m in height or with slopes or other surcharges above the wall will need a toe drain. 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. 300 mm behind the block. The toe drain and the wall rock is designed to remove incidental water from behind the wall and is.
If the primary concern is surface water a trench only 2 feet deep. Just below that is 8 to 12 in. Typically drain lines are installed at the base of new walls before the soil is backfilled. The design of a properly built retaining wall resists the force of the soil behind it and prevents caving buckling or leaning.
However retaining walls are built with a certain capacity in mind. A retaining wall is built to hold back a certain amount of soil. The gravel below that soil gives water that does enter a fast route to the drain tile. Once a few rows have been stacked backfill the wall with rock so it matches the grade height in front of the wall and then lay down perforated drain tile on top of the rock.
Design and build your retaining wall to slope at a minimum rate of. A wall that leans into the soil it retains is less likely to be pushed outward by soil pressure than a plain old vertical wall. Why proper drainage is important for retaining wall performance. This video shows you how to properly install a drainpipe behind your wall for prop.
Cut one landscape retaining wall. Any reinforced wall or walls over 4 ft. 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. In all cases wall rock is located within the cores of the block and a minimum of 12 in.