Geoscience Reference
In-Depth Information
Retaining walls
20.1 Wall types
•
The classification of earth retention systems can be used to determine the type of
analysis.
•
Hybrid systems from those tabulated are also available.
Table 20.1
Classification for earth retention systems (adapted from O'Rouke and Jones, 1990).
Stabilization system
Type
Examples
External
In-situ
Sheet piles
(Embedded)
Soldier piles
Cast - in situ (slurry walls, secant and contiguous piles)
Soil - cement
Precast concrete
Timber
Gravity
Masonry
Concrete
Cantilever
Countefort
Gabion
Crib
Bin
Cellular cofferdam
Internal
In-situ
Soil nailing
Soil dowelling
Reticulated micro piles
Reinforced
Metallic strip
Wire mesh
Geotextile
Geogrid
Organic inclusions
•
The external walls may be braced / tied back or free standing walls.
20.2 Gravity walls
•
<
Gravity or concrete walls tend to be economical for wall heights
3m.
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