Friday, November 13, 2009

SOIL

Slide 5
Why mechanics of soils?
Slide 5
Like other solid materials (e.g. metals, rock), soils deform when they are exposed to forces.





Slide 5



Unlike many other materials in our environment , soils show a
wide range of possible mechanical behavior which influences considerably their use for …

Slide 7
Understanding soil deformation behavior is crucial to:
  1. design slopes and retaining walls
  2. build tunnels in ‘soft’ rock
  3. assess hazards due to land slides
  4. prevent soil from compaction
  5. optimize soil management teqnic and so on.
Slide 8
What are the critical properties we try to change??
Critical Properties:
  • Shear strength
  • Volume change
  • Hydraulic conductivity
Slide 9






What if available soils are “difficult”??


Slide 9
  1. Select new site
  2. Replace soils
  3. By pass soil altogether with deep foundation
  4. Design structure accordingly
  5. Soil improvement