World-leading geotechnical engineer Professor John Burland introduces viewers to the world of soil mechanics. This is the first in the Bare Essentials of Soil Mechanics series: the key things a civil engineer needs to created to understand about soil mechanics.
In the second video in the Bare Essentials of Soil Mechanics series, Professor John Burland explains that soils are made up of individual particles - this fact is fundamental to the understanding of soil behavior.
In the third video in the Bare Essentials of Soil Mechanics series, Professor John Burland demonstrates how deposition under gravity of soil particles in lakes and rivers affects how soils behave.
In the fourth video in the Bare Essentials of Soil Mechanics series, Professor John Burland demonstrates how soil grading (the range of particle sizes in a soil) and soil shape affect a soil's ability to resist load
On the 29th of April 1978, a quick clay landslide devastated large areas of the rural district of Rissa I mid-Norway. One person died whilst 13 farms; 2 homes; a cabin and a community centre were taken by the clay masses. Five to six million cubic metres of clay collapsed from an area of 330,000 m2 leaving a 1.5 kilometre slide face. The landslide caused great material damage to the community of Leira when a resulting three-metre high floodwave breached the opposite bank of lake Botnen shortly after the main slide. The Rissa landslide was caught on 8 mm cinefilm by two film amateurs. This is still used actively in avalanche preventative and educational work.
In Portland, Oregon two men find themselves battling for their lives as a landslide hits their vehicle.