In stream restoration, river engineering or coastal engineering, revetments are sloping structures placed on banks or cliffs in such a way as to absorb the energy of incoming water. In military engineering they are structures, again sloped, formed to secure an area from artillery, bombing, or stored explosives.

What is the revetment in the trenches?

The revetments are designed to support the trench walls and prevent collapse during an artillery bombardment. The German lines are to the left side of the photograph.

What is the meaning of the word revetment?

1 : a facing (as of stone or concrete) to sustain an embankment. 2 : embankment especially : a barricade to provide shelter (as against bomb fragments or strafing)

What were revetments used for in ww1?

Made of logs, wood planks, fence rails, fascines, gabions, hurdles, sods, or stones, the revetment provided additional protection from enemy fire, and, most importantly, kept the interior slope nearly vertical.

What is a revetment for kids?

Revetments are slanted structures build along cliffs. They can be made from concrete, wood or rocks. Cliff erosion is prevented as waves break against them with the revetment absorbing the energy.

What is REVETMENT? What does REVETMENT mean? REVETMENT meaning, definition & explanation

40 related questions found

What is a revetment wall?

Revetment walls are permanent structures located along the canal frontage of land. Revetment walls prevent subsidence of the land into the canal and protect it from erosion caused by the canal system's tidal waters and boat wash.

Where are revetments used in the UK?

Timber revetments have been historically used in the UK for coast protection, particularly on the south and east coasts, where the costs or impacts of a seawall may have been unacceptable.

What is a revetment in geography?

Revetments are sloping structures built on embankments or shorelines, along the base of cliffs, or in front of sea walls to absorb and dissipate the energy of waves in order to reduce coastal erosion.

What is revetment in civil engineering?

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.

What was WWI's most efficient killer?

What was the most efficient killer in World War I? Disease. Dysentery, typhus, and cholera were most common.

What is marble revetment?

noun. a facing of masonry or the like, especially for protecting an embankment. an ornamental facing, as on a common masonry wall, of marble, face brick, tiles, etc.

What is offshore breakwater?

Breakwaters are offshore, sloped or vertical concrete walls designed to reduce the erosive power of waves out at sea so that once they reach the shore, the wave energy is reduced.

What is a groyne in beach terms?

A groyne is a shore protection structure built perpendicular to the shoreline of the coast (or river), over the beach and into the shoreface (the area between the nearshore region and the inner continental shelf), to reduce longshore drift and trap sediments.

What is the difference between a retaining structure and a revetment structure?

Most revetment walls are earth-retaining structures not unlike terrestrial walls, but revetments are also substantially exposed continuously to changing tidal water levels and erosion at the toe facing the water. In walls fronting rivers and flood canals, the latter provide a major cause for wall movement and failure.

What is revetment wall on Hill Road?

Revetment walls are constructed to protect the base of a slope from undermining or other damage, such as grazing by animals. They give only protection, not support, and are not used on large, unstable slopes, where substantial retaining structures may be required.

How much do revetments cost UK?

Similarly precise costs can only be estimated, but typically they are likely to be between £5,000 and £10,000 per linear metre. Thus for the 9km of Pevensey Bay's sea defences a sea wall could easily cost £75,000,000.

What is blast pens for fighter jets?

A blast pen was a specially constructed E-shaped double bay at British RAF World War 2 fighter stations, being either 150 feet (46 m) or 190 feet (58 m) wide and 80 feet (24 m) front-to-back, accommodating aircraft for safe-keeping against bomb blasts and shrapnel during regular enemy air-attacks.

What is slumping GCSE geography?

Slumping: involves a whole segment of the cliff moving down-slope along a saturated shear-plane. Soil Creep: the slowest of downhill movements, occurring on very gentle and well-vegetated slopes.

What are the disadvantages of rip rap?

Disadvantages/Problems

Riprap is more expensive than vegetated slopes. There can be increased scour at the toe and ends of the riprap. Riprap does not provide the habitat enhancement that vegetative practices do.

How is a discordant coastline formed?

A discordant coastline occurs where bands of different rock type run perpendicular to the coast. The differing resistance to erosion leads to the formation of headlands and bays. ... The Portland limestone is resistant to erosion; then to the north there is a bay at Swanage where the rock type is a softer greensand.

What town in Norfolk disappears as you approach it?

This is Happisburgh (pronounced 'haze-bro'), a Norfolk village founded over 1,000 years ago. Back then there was an entire other village between Happisburgh and the sea. The coastline has retreated around 50 metres per decade.

Why is the north Norfolk coast eroding so fast?

There are several reasons why the coast at Happisburgh is eroding so rapidly: Rock type – the cliffs are made from less resistant boulder clay (made from sands and clays) which slumps when wet. ... This narrows unprotected beaches elsewhere even further, as new sand does not come down to replace sand eroded by waves.

What is meant by soft engineering?

Soft engineering is where the natural environment is used to help reduce coastal erosion and river flooding. At the coast soft engineering is where a beach is used to absorb wave energy and reduce erosion. ... Beach replenishment is where beach material from elsewhere is dumped or pumped on to the beach to make it larger.