14 - Page 1/6 GEOL 0820 Ramsey Natural Disasters Spring,...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon

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

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

Unformatted text preview: Page 1/6 GEOL 0820 Ramsey Natural Disasters Spring, 2011 LECTURE #14: Landslide Assessment, Mitigation and Case Studies Date: 3 March 2011 I. General Types (cont from last class): 3. flow: materials breaks up and moves as a viscous fluid (differential shearing) o no distinct basal plane o greatest velocity at upper surface o can be the wettest, driest, fastest and slowest types of landslides o falls & slides can undergo transitions to flows o flow types creep very slow movement of soil down slope tell-tale indicators most important in terms of total volume initiated: o freeze-thaw cycles o wetting-drying cycles o biological displacement soliflucation very slow movement of soil down slope water/ice saturated sediments most important in cold weather climates mud and debris flows rapid movement of soil and water water = ~ 30% total volume (mudflows) lahars, flash floods Page 2/6 debris avalanche unconsolidated debris moves rapidly down slope...
View Full Document

This note was uploaded on 01/05/2012 for the course GEOL 0820 taught by Professor Ramsay during the Spring '08 term at Pittsburgh.

Page1 / 6

14 - Page 1/6 GEOL 0820 Ramsey Natural Disasters Spring,...

This preview shows document pages 1 - 3. Sign up to view the full document.

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