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If for sands,
k = coefficient of permeability
D10 = representative grain size from grain-size distribution
Which of the following is correct?
  • a)
    k is directly proportional to D10
  • b)
    k is directly proportional to (D10)2
  • c)
    k is directly proportional to (D10)1/2
  • d)
    k is directly proportional to (D10)3
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
If for sands,k = coefficient of permeabilityD10 = representative grain...
In sands, permeability can be empirically related to the square of representative grain size from its grain-size distribution.
Empirical relation by Allen Hazen:
k = C(D10)2
where D10 = effective grain size in mm
k = coefficient of permeability in cm/s
C= constant (varies between 0.4 to 1.2 with an average value of 1)
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If for sands,k = coefficient of permeabilityD10 = representative grain size from grain-size distributionWhich of the following is correct?a)k is directly proportional to D10b)k is directly proportional to (D10)2c)k is directly proportional to (D10)1/2d)k is directly proportional to (D10)3Correct answer is option 'B'. Can you explain this answer?
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