revetment

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revetment

[rə′vet·mənt]
(civil engineering)
A facing made on a soil or rock embankment to prevent scour by weather or water.
(ordnance)
A retaining wall with a facing such as concrete or stone, commonly used for fortifications or to protect against explosions.

Revetment

A facing or veneer of stone, concrete, or other materials constructed on a sloping embankment, dike, or beach face to protect it against erosion caused by waves or currents. The revetment may be a rigid cast-in-place concrete structure; but more commonly it is a flexible structure constructed of stone riprap or interlocking concrete blocks. It is sometimes an articulated block structure where the armor blocks are set in a form known as a flexible carpet; that is, the blocks interlock for stability, but the interlocking makes them flexible enough to respond to settlement of the underlying soil. A flexible revetment provides protection from exterior hydraulic forces, and it also can tolerate some settlement or consolidation of the underlying soil.

A typical revetment might employ stone riprap as the armor material (see illustration). A revetment typically has three major components: (1) the armor layer, which resists the wave or current-induced hydraulic forces; (2) a filter layer under the armor layer to allow water seepage out of the underlying soil without the removal of fine soil particles; and (3) a mechanism to stabilize the structure toe. Toe stabilization is particularly important where waves break on the structure, but may not be necessary if the revetment extends to sufficient depths where hydraulic forces will not erode the toe of the slope. The design water level (see illus.) for the structure may be higher than the normal water level during nonstorm conditions. If the revetment is exposed to waves that will break and run up the face of the revetment, the upper extent of the revetment must be sufficiently high to counter the force exerted by the waves.

Although stone riprap is the most commonly used material for revetment armor layers, a wide variety of other materials have been used, including cast-in-place concrete and poured asphalt, wire bags filled with stone (gabions), interlocking concrete blocks, soil cement, cement-filled bags, interlocked tires, woven wooden mattresses, and vegetation (only used for surfaces exposed to very low waves or slow-moving currents). See Retaining wall, River engineering

revetment

1. Any facing of stone, metal, or wood over a less attractive or less durable substance or construction.
2. A retaining wall or breast wall; a facing on an embankment to prevent erosion.

revetment

An area protected on three sides by sandbags, concrete, compacted earth, or other material. The aim is to provide blast protection to the aircraft, weapon system, or essential equipment inside and beyond the revetment. Also called a blast fence, open blast pen, or hardened shelter.
References in periodicals archive ?
Traditional principals of urban water landscape planning do have limits nowadays considering the idea of orderly revetments, monotonous landscape forms, and plant arrangements.
work to repair and reinforce a nearby coastal path's damaged revetment, covering an old landfill site.
But revetments do something even more insidious, Berman said.
The revetments have also affected the river's riparian and aquatic systems, jeopardizing the indigenous fish species.
As with large boulder revetments, these gap also provide good cover for fish and other aquatic wildlife (below the waterline) and for terrestrial species (such as reptiles and small main mals) above it.
The Trust and English Nature are opposed to the proposed French limestone sea wall, arguing nature should be allowed to take its course and that the barrier, called a revetment, will not ultimately stop the sea eroding the cliff face.
Two commonly applied design criteria that govern the selection of geotextile filters for coastal revetments are filtration criteria and resistance to construction damage.
install precast concrete stepped revetments & vertical wall cladding installation craneage supply & install all fixings supply & place all grout temporary support to precast cladding/panels jointing of cladding/panels grouting of stepped revetment joints & joints to sheet piling grouting behind cladding/panels cleanliness / dewatering of working areas during placing and fixing.
This prevents damage to the revetments and reduces wave run-up.
bank revetment on the poor save the hope km 271 + 760 to 271 + 900, 2 partition lipovac on bosutu in km 39 + 500, the third bank revetment on the poor sava in slavonski brod, at km 362 + 225 to 363 + 100, 4 of the constitution coating, 5 of the constitution trebe 6 revetments in m.
Tenders are invited for Construction of FP work by way of Crate revetments from Bagargund Bridge on Kehmil Nallah
2.Construction of new coastal structures including; breakwaters, revetments, and quay walls.