What is the Angle of Repose?And why does a geologist/builder/ or contractor need to know it?

Question

Is it the slope of a certain material?
Or when you have a pile of material on a horizontal surface, the angle between the edge of the pile and the horizontal surface is know as the angle of repose? Is this tru

Answer 1

Your definition is more or less correct, only the word "acute" before the angle is missing.
Ed is also right. But in his case the term "maximum" before the "angle of the slope" is missing.
In other words, the maximum angle or slope at which the loose earth materials, like sand or soil, remain stable is the angle of repose.
It varies greatly with composition, grain size, shape of the material and moisture content. For dry sand the angle of repose is 32 to 34 degrees.
From angle of repose a contractor / builder gets the idea of the quality of the material and also its transport/storage. A geologist uses it for mainly for slope stability study,

Answer 2

This Site Might Help You.

RE:
What is the Angle of Repose?And why does a geologist/builder/ or contractor need to know it?
Is it the slope of a certain material?
Or when you have a pile of material on a horizontal surface, the angle between the edge of the pile and the horizontal surface is know as the angle of repose? Is this tru

Answer 3

Angle Of Repose Geology

Answer 4

Drop material like sand or dry cement from a point source and a conical pile will result.

The angle of repose is the angle of the slope of the pile of loose material.

Of course, if the pile were next to, for instance, a wall, it would be the angle on the free sides.

A contractor building up the level of a site would want to know how close to the property line he would be able to have a level surface.