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Embankment (earthworks)

From Wikipedia, the free encyclopedia

A diagram showing an embankment
A diagram showing an embankment
Disbanded West Somerset Mineral Railway embankment near Gupworthy, UK
Disbanded West Somerset Mineral Railway embankment near Gupworthy, UK
Cream-colored concrete abutment marks a gap in an embankment and gives vertical support to the dark red rail bridge, and to the fill of the bridge approach embankment. To reduce the metal cost of the bridge here it is further supported by erecting metal piers.
Cream-colored concrete abutment marks a gap in an embankment and gives vertical support to the dark red rail bridge, and to the fill of the bridge approach embankment. To reduce the metal cost of the bridge here it is further supported by erecting metal piers.

A road, railway line or canal is normally raised onto an embankment made of compacted soil (typically clay or rock-based) to avoid a change in level required by the terrain, the alternatives being either to have an unacceptable change in level or detour to follow a contour. A cutting is used for the same purpose where the land is originally higher than required.

Materials

Embankments are often constructed using material obtained from a cutting. Embankments need to be constructed using non-aerated and waterproofed, compacted (or entirely non-porous) material to provide adequate support to the formation and a long-term level surface with stability.

Intersection of embankments

To intersect an embankment without a high flyover, a series of tunnels can consist of a section of high tensile strength viaduct (typically built of brick and/or metal) or pair of facing abutments for a bridge.

Notable embankments

See also

References

External links

bibliography

This page was last edited on 26 November 2020, at 18:32
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