Perforated Drain Pipe Retaining Wall

Another method for relieving hydrostatic pressure is to install a drainage pipe behind the wall.

Perforated drain pipe retaining wall.

Sites with poor draining soils or walls over 4 ft. Pipe drains also known as toe drains are perforated pipes that collect water along the length of the wall and drain it to the outside. I advocate just putting non woven geotextile fabric and 3 4 stone behind the wall so the water will migrate down with gravity and eliminate hydrostatic pressure on the wall. 1 2 m tall will require a toe drain.

No perforated drain pipe. I was going to use a perforated 100mm flexible pipe in a geo textile sleeve bedded in gravel but i can t find a product that would allow me to t off smaller diameter weep holes at regular intervals what can i use without spending the earth or should i just bing the pipe out of the wall at one. Some of these drains are vented through the front of the retaining wall while others may run the length of the wall and drain out to the sides. Backfilling the space behind the blocks with crushed stone and then installing a flexible perforated drainpipe available at the home depot also called drain tile at the base of the wall.

Having a perforated drain behind a retaining wall makes no sense as the water will exit as quickly as it enters through the perforations. Mar 19 2014 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. This video shows you how to properly install a drainpipe behind your wall for prop. Retaining walls with a height greater than a few feet should also have weep holes that are regularly spaced in the vertical direction forming a grid pattern.

Drain pipes used in toe drain applications must be properly vented a minimum of every 50 ft. When i use perforated pipe in a drainage system should the holes go up or down. Perforated drains allow the water to flow out of the wall preventing it from collapsing under the weight of too much water. Retaining wall leaking drainage rocks.

Hi i m building a retaining wall in my garden a need to put a drain at the foot of the wall. I hear arguments for both methods but it really depends on how the pipe functions in your drainage system before going any further the pipe we are discussing here is heavy duty. Adding drains to the foundation of your retaining wall drainage is vital. This should be a perforated pipe to allow water to enter it through the length of the wall.

Learning how to build a retaining wall can be fun with these helpful tips.