Quiz 7 SG - Know what is the most common mechanism that...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Know what is the most common mechanism that triggers slope failures. Acceleration sets particles into motion and breaks inter-particle cohesive forces, so that the yield strength of a material is lowered and slope failure occurs Liquefaction: all effective stresses are transferred from grain to grain contact to the pore water in the sediment. All interparticle friction is lost, and the material loses all shear strength. What must occur for water to destabilize a slope and cause it to fail? When water is added to sediment, it makes it heavier which favors slope failure. If pore spaces in the sediment are only partly filled with water, the water in many cases can act a cohesive agent. However, if soil or sediment constituting a hill slope becomes saturated such that pore pressure is positive, then water is a very strong destabilizing agent, and a rapid episodic mass movement will likely occur. Most occurring
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 01/06/2012 for the course GEOL 102 taught by Professor Antoniogarcia during the Fall '11 term at Cal Poly.

Page1 / 2

Quiz 7 SG - Know what is the most common mechanism that...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online