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What is the typical method for predicting settlement in cohesive soils?

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Question: What is the typical method for predicting settlement in cohesive soils?

Options:

  1. Using the SPT N-value
  2. Empirical correlations based on field tests
  3. Laboratory consolidation tests
  4. Visual inspection

Correct Answer: Laboratory consolidation tests

Solution:

Laboratory consolidation tests, such as oedometer tests, are typically used to predict settlement in cohesive soils by measuring their compressibility.

What is the typical method for predicting settlement in cohesive soils?

Practice Questions

Q1
What is the typical method for predicting settlement in cohesive soils?
  1. Using the SPT N-value
  2. Empirical correlations based on field tests
  3. Laboratory consolidation tests
  4. Visual inspection

Questions & Step-by-Step Solutions

What is the typical method for predicting settlement in cohesive soils?
  • Step 1: Understand that cohesive soils are types of soil that stick together, like clay.
  • Step 2: Know that when weight is added to these soils, they can compress and settle.
  • Step 3: Use laboratory tests to measure how much the soil will compress. One common test is the oedometer test.
  • Step 4: In the oedometer test, a soil sample is placed in a device that applies pressure to it.
  • Step 5: Measure how much the soil sample compresses under different amounts of pressure.
  • Step 6: Use the data from the test to calculate how much the soil will settle when weight is applied in real life.
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