Density and liquefaction. A heavy object can sink into the ground during an earthquake if the...
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Density and liquefaction. A heavy object can sink into the ground during an earthquake if the shaking causes the ground to undergo liquefaction, in which the soil grains experience little friction as they slide over one another. The ground is then effectively quicksand. The possibility of liquefaction in sandy ground can be predicted in terms of the void ratio e for a sample of the ground: e=Vvoids/Vgrains. Here, Vgrains is the total volume of the sand grains in the sample and Vvoids is the total volume between the grains (in the voids). If e exceeds a critical value of 0.74, liquefaction can occur during an earthquake. What is the corresponding sand density Psand? Solid silicon dioxide (the primary component of sand) has a density of Pso, = 2.600 × 10³ kg/m³. Density and liquefaction. A heavy object can sink into the ground during an earthquake if the shaking causes the ground to undergo liquefaction, in which the soil grains experience little friction as they slide over one another. The ground is then effectively quicksand. The possibility of liquefaction in sandy ground can be predicted in terms of the void ratio e for a sample of the ground: e=Vvoids/Vgrains. Here, Vgrains is the total volume of the sand grains in the sample and Vvoids is the total volume between the grains (in the voids). If e exceeds a critical value of 0.74, liquefaction can occur during an earthquake. What is the corresponding sand density Psand? Solid silicon dioxide (the primary component of sand) has a density of Pso, = 2.600 × 10³ kg/m³.
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To determine the corresponding sand density Pand for the given condition we can use the relationship ... View the full answer
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