Soil Liquefaction: Comparing Various Soils and Amount of Water Necessary to Compromise the Integrity of the Foundation

Overview

Objectives/Goals I want to find which soil foundation can withstain the most water before liquifaction occurs. Methods/Materials I am going use 4 different types of soils. Sand, Clay, Loam, and Valley Soil. I am going to put these soils into a 7 inch container. I will then add 3and a half inch block builiding onto the top of the soil. I then added 4oz of water into the soil. For every minute of passing time that the building did not show any indication of movement, I added two more ounces of water. For every three minutes, I added 3 oz of weight to the building. I recored any movement of the building. This would indicate when liquifaction occured. Results Sand lasted the longest. 14.9 minutes before liquifaction occured. Loam lasted 9.2 minutes before liquifaction occued Clay lasted 2.5 minutes valley Soil lasted 2.2 minutes Conclusions/Discussion My experiment allowed me to see which soil stayed stable the longest. Sand did surprinsingly well. It took the longest to liquify. I learned that sand would be stable in keeping buildings stable when the soil is subjected to large amounts of water due to earthquakes in regions such as coastal areas.

Competition history

• CSEF 2004 Earth Sciences/ Planetary Sciences/ Physical Environments · Entry J0608

Resources

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