Soil liquefaction takes place when a saturated soil noticeably mislays strength and rigorousness in reaction to pragmatic stress such as shaking of earth during an earthquake, in which matter which is usually a solid act like a fluid.
Further Explanations:
The term solid liquefaction was firstly coined by Allen Hazen in 1918 in relation to the disaster of the Calaveras Dam in California. The phenomenon can be marked in the areas with loose, saturated and sandy soil as these soils have tendencies to compress when load is applied to it. The phenomenon adversely existed in the areas saturated by water like the soil found below the water table. The water gets filled in the gaps of the soil and leads to its compressing.
Pressure exerted during the earthquakes can also force underground water and liquefied sands to spout out to the surface which is termed as “sand boils” and “Sand Volcanoes”. This shaking deform the ground near the raptured faults that lead to the motion of ground downslope towards unsupported margins.
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Answer Details
Grade: High School
Subject: Geography
Chapter: Soil liquefaction
Keywords:Soil liquefaction,Allen Hazen, 1918, Calaveras Dam, California, water table, Sand Volcanoes, sand boils, phenomenon, raptured faults