Cone or Cylinder: Which Will Collapse First in a Landslide?

  • Context: Undergrad 
  • Thread starter Thread starter kaleidoscope
  • Start date Start date
  • Tags Tags
    Physics
Click For Summary
SUMMARY

The discussion centers on the stability of geometric shapes in a landslide scenario, specifically comparing a cone and a cylinder of equal height and radius, made from the same type of dirt and density. It concludes that cones may exhibit greater stability due to their shape, which can better resist erosion from rain. The presence of a hard cap on the cone can further enhance its stability by protecting the lower structure from erosion. Visual examples, such as tent rocks and hoodoos, illustrate the differences in stability between these shapes.

PREREQUISITES
  • Understanding of basic geometric shapes and their properties
  • Knowledge of soil mechanics and erosion processes
  • Familiarity with environmental factors affecting landforms
  • Ability to analyze photographic evidence in geological contexts
NEXT STEPS
  • Research the principles of soil erosion and stability analysis
  • Explore the effects of shape on structural integrity in civil engineering
  • Study the role of vegetation in preventing soil erosion
  • Investigate real-world examples of landslides and their causes
USEFUL FOR

Geologists, civil engineers, environmental scientists, and anyone interested in the dynamics of landform stability and erosion processes.

kaleidoscope
Messages
66
Reaction score
0
you have a cone and a cilynder, both are the same height and radius. Both are made of the same type of dirt and have the same density and have no additional reinforcement. you let rain fall uniformly on them, which will colapse first?
 
Last edited:
Physics news on Phys.org
These two attached photographs imply that cones are more stable, maybe. A hard cap will actually shield the lower rock from being eroded. The tent rocks in the first photo are very conical. The hoodoos in the second photo look more like cupcakes with a layer of frosting.

Bob S

[added] Neither photo is mine. I found them on the web.
 

Attachments

  • Tent_Rocks.jpg
    Tent_Rocks.jpg
    69.9 KB · Views: 354
  • Bisti_Badlands.jpg
    Bisti_Badlands.jpg
    57.7 KB · Views: 382
Last edited:

Similar threads

  • · Replies 7 ·
Replies
7
Views
2K
  • · Replies 2 ·
Replies
2
Views
3K
  • · Replies 2 ·
Replies
2
Views
4K
  • · Replies 2 ·
Replies
2
Views
2K
  • · Replies 12 ·
Replies
12
Views
2K
Replies
0
Views
2K
  • · Replies 2 ·
Replies
2
Views
2K
Replies
7
Views
4K
  • · Replies 1 ·
Replies
1
Views
3K
  • · Replies 6 ·
Replies
6
Views
9K