Retaining Wall Base Gravel Depth

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.

Retaining wall base gravel depth.

This is standard for all. 150 mm plus an additional 1 in. The footing is usually made of poured concrete but in some situations homeowners may instead opt to simply use tamped earth or a gravel base. One key aspect of retaining wall construction is preparing a solid footing or foundation.

A trench filled with gravel provides a suitable foundation base for a short step back retaining wall with three five courses each layer of blocks is called a course. All retaining walls share some common building components in their construction. Similar to gravel paver base is a form of construction aggregate that contains crushed rocks such as limestone. Choose a paver base with landscape rocks between 1 2 inch and 3 4 inch in size.

Daylight down slope and there should be a down slope so you control the surface water. Behind that wall and sitting below the gravel is a perforated 4 pipe wrapped in landscape fabric and back filled with drain rock. 600 mm wide the length of the wall the depth of the trench will be 6 in. Thoroughly planned and ably performed wall construction will help to ensure the retaining wall s stability.

The interlocking retaining wall block can be used to build walls up to 24 to 36 inches high depending on the size of the block. 25 mm for each 1 ft 300 mm of wall height for the amount or buried block that is needed. The depth of your foundation should be 4 compacted crushed gravel plus one row of your cmu concrete modular units. Retaining wall base trench.

Design and build your retaining wall to slope at a minimum rate of. A level base on which the wall sits. Follow the block manufacturer s instructions for wall height limits. Dig a base trench 24 in.

Due to soil erosion your retaining wall should be built on a solid foundation made from paver base. Below is an overview of the different types of walls and these common components. Retaining walls are designed to hold up a surcharge of soil such as a sloping hill or raised planter box.