rip rap could have been used as a nautical term by sailors during the 1600's. It meant "stretch of rippling water" caused under water formations.
Riprap combats erosion on the bank or shore of a body of water or a stream. The stone deflects or absorbs the motion of the water (waves, streams) so they either do not reach the soil on the waters edge or minimizes the effect that erosive action.
The country of manufacture is where it was built and the country of origin is where it was designed, if there really is a difference.
Marconi.
united states
germany
select adequate size stone. use proper treatment at end of riprap blanket. use adequtely graded riprap. provide a filter blanket, if necessary.
greek is the origin of oceanography
lahar is the term for mass movement that is volcanic in origin
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Riprap is a foundation made from irregular stones.
riprap
In the UK the rock material your referring to is known as Riprap or rock armour.
The term is etymology.
Glacial drift is the term for all sediments of glacier origin.
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The idiom "to brain someone" is thought to have originated from the idea of using one's brain as a weapon to strike or hurt someone. It is a figurative expression that means to hit or strike someone on the head with great force.
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