Geological Hazards and Their Impact_McGeary_Date_041410

Geological Hazards and Their Impact_McGeary_Date_041410 -...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Landslides - falls: free fall i.e. rockfall fastest type of movement to stabilize against: netting, pouring concrete - slides: cohesive movement along slide plane i.e. slump, block glide cohesive unit of rock or soil moves down - flows: material moves chaotically i.e. rock avalanche, creep, debris flow - slumping occurs often when highways cut into slopes occurs after big rainfall install pipes to help drain slopes so they don’t collapse - debris flows also called debris avalanche very rapid looks like water flowing down the hillside - creep: everything moves up perpendicular to the slope when it freezes then slowly falls
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: vertically along the slope when it unfreezes - stop mass movements: install sensors on suspect terrain install drainage system to release groundwater make the surface impermeable La Conchita, CA Located along pacific coast highway Hills made up of weak shale and unconsolidated sediment Very steep terrain The site of many landslides over the years Human activity aggravated hazards Material flowed out at base, traveling farther then a slide because of fluid...
View Full Document

Ask a homework question - tutors are online