What is the issue?<br />Prior to the Christchurch earthquake, the word ‘liquefaction’ was very much an unknown.<br />What is your understanding of liquefaction, and through your research, in what ways, if any, can we prepare to deal with this phenomenon?<br />
What is Liquefaction made of ?</li></ul>Liquefaction is a layer of sandy saturated soils-soft earth<br /><ul><li>Sediment layers-loose hard material stones/rocks
Grainy saturated layers of water</li></li></ul><li>This is our liquefaction <br />Video!<br />
Why Does Liquefaction Occur? <br /><ul><li>The earth continues to shake
The shaking makes the small soft sandy earth particles vibrate
The water beneath rises up through the ground and mixes with the soft soil
This turns the soil to a sticky wet dangerous custard, like quick-sand.</li></ul>WHAT CAN WE DO?<br /><ul><li> DO NOT build on the soft and sandy earth.</li></ul>IF NOT THEN WHAT?<br /><ul><li> Design re-in forced buildings to handle the shaking and turning of soft soil to a liquid.
Look at the foundations of the houses and buildings being built. Make the houses move with the shaking. Make the houses sit higher above the earth. Strength the soil.</li></li></ul><li>TO CHANGE THE STRUCTURE OF THE SOIL BY PUMPING IN ANOTHER MATERIAL TO STRENGTHEN IT.<br />
liquefaction!<br />The known monster!<br />WHEN WE KNOW WHAT THE ISSUES ARE, WHEN WE KNOW WHAT THE PROBLEMS ARE<br />THEN WE WILL KNOW HOW TO WORK TOWARD FIXING THEM 1. Learn which homes and structures were affected, and which ones weren’t.<br />2. Design more earthquake-liquefaction resistant homes.<br />3. Educate locals to build their skill sets using disaster-resistant technologies.<br />4. Stimulate local demand for new types of housing and design.<br />5. Measure the change over time.<br />
A particular slide catching your eye?
Clipping is a handy way to collect important slides you want to go back to later.