calendar_today 11.08.2010 -
person
- timer ~2 Minutes
49+ Proper Drainage Behind Retaining Wall
Background. A retaining wall is built to hold back a certain amount of soil. In addition to the foot of backfill that is used behind your retaining wall, you should also make sure that perforated piping is laid at the bottom of the backfilled portion of the wall.
Basic Drainage Aqua Magazine from aquamagazine.com
It is important to consider retaining wall drainage in the process of building your wall. A retaining wall will make use of the vertical forces from the wall itself and any soil another method for relieving hydrostatic pressure is to install a drainage pipe behind the wall. The second category is a • you may need to place and backfill several courses to achieve the proper drainage level.
Second, a retaining wall must have properly compacted backfill.
The way to build this is dig down around the retaining now, i guess your question is: Unless the wall is built to retain water, it needs to have proper drainage and you. Retaining wall drainage is something that should be well thought out and designed. In order to provide proper drainage, at least 12 inches of granular backfill (gravel or a similar aggregate) should be installed directly behind the wall.
