Gabion Retaining Wall Design Example

Foundation engineering chapter 8.

Gabion retaining wall design example.

A review of basic soil. Examples of gabion retaining walls geo tex geo textile filter fabric is a vital component of any gabion retaining wall project. The weight of the gabion wall wg acts vertically through the centroid of its cross section area. The horizontal distance to this point from the toe of the wall dg may be obtained from the statical moment of wall areas.

Gabion baskets are a mass retaining system thus the higher the area that needs retaining the heavier the wall must be. The standard design for a gabion wall is a pyramid. Other topics include sheet pile walls tilt up retaining walls soldier pile walls gabion walls counterfort walls pilaster walls and walls with pile or pier foundations. Note rockfill surcharge on crest of wall the toe wall provides passive toe restraint so the wall did not have to be excavated as deeply against the existing road.

Sketches of the retaining wall forces should be considered to properly distinguish the different forces acting on our retaining wall as tackled in the previous article retaining wall. Gabion retaining wall design guidelines most gabion retaining walls don t need concrete foundations depending on the wall height a 2 to 4 layer of compacted 1 road base crushed from either blue metal or basalt rock is all that is required for most gabion walls. Gabion1 has 100 s of sizes allowing stepped foundations. Design and analysis of retaining walls 2 economical when the wall height exceeds 8m.

The weight of the gabion wall wg acts vertically through the centroid of its cross section area. Retaining wall design examples. Gabion retaining wall examples more info site geology design factors more info gabion retaining walls are a simple low cost gravity wall that do not require a concrete foundations or deep footing piles. The horizontal distance to this point from the toe of the wall dg may be obtained from the statical moment of wall areas.

In general for every 1m increase in wall height the bottom row basket depth should be increased by half a metre. Whereas if bracing is in front of the wall and is in compression instead of tension the wall is called buttress retaining wall. Based on our example in figure a 1 we have the forces due to soil pressure due to water and surcharge load to consider. Gabion walls are most commonly filled with rocks and the voids between them are filled in with backfill materials such as silts and clay or soft clay.