Second, a retaining wall must have properly compacted backfill. Backfill refers to the dirt behind the wall. 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.
How Much Backfill for Retaining Wall?
Retaining walls are an important part of any landscape. They can be used to create a beautiful and functional space to enjoy, but they can also prevent soil erosion and provide extra stability for structures.
When constructing a retaining wall, one of the most important decisions you will have to make is how much backfill is necessary.
The amount of backfill required for a retaining wall depends on several factors, such as the wall’s size, the type of soil and the design of the wall itself.
The first step in determining how much backfill is needed for a retaining wall is to determine the wall’s size. The amount of backfill required will increase as the size of the wall increases, so the bigger the wall, the more backfill it will need.
The type of soil used for the backfill will also affect the amount of backfill required. If the soil is sandy or clayey, more backfill may be needed to ensure that it is adequately compacted and prevents any soil erosion.
The design of the retaining wall will also be a factor in determining the amount of backfill needed. Walls with a steep slope will require more backfill than those with a gentler slope. Additionally, walls with multiple tiers will require more
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