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What is the capillary rise of water above the water table, if the water table is at a depth of 10 m in silty soil, void ratio (e) of the soil is 0.50 and the effective diameter (D10) of the soil mass is 0.05 mm. assume the empirical constant (C) value = 0.5 sq.cm 
  • a)
    0.50 cm
  • b)
    200 cm
  • c)
    50 cm
  • d)
    196 cm
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
What is the capillary rise of water above the water table, if the wate...
The height of capillary in soils is determined by an approximate formula suggested by Terzaghi, which is given as:


C is constant in Sq.cm ranges from 0.1 to 0.5 Sq.cm.
e is the Void ratio
D10 is effective grain size in cm.
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Most Upvoted Answer
What is the capillary rise of water above the water table, if the wate...
Capillary rise is the phenomenon of water moving upwards against gravity in a porous medium due to capillary forces. It occurs when the adhesive forces between the water and the solid particles of the soil are stronger than the cohesive forces within the water itself.

To calculate the capillary rise of water above the water table, we can use the formula:

H = (C * (e/D10) * √(γw * D10 * h))/γw

Where:
H is the capillary rise
C is the empirical constant
e is the void ratio of the soil
D10 is the effective diameter of the soil particles
γw is the unit weight of water
h is the depth of the water table

Given:
h = 10 m
e = 0.50
D10 = 0.05 mm = 0.005 cm
C = 0.5 sq.cm

We need to convert D10 from mm to cm:
D10 = 0.005 cm

Now, we can substitute these values into the formula:

H = (0.5 * (0.50/0.005) * √(γw * 0.005 * 10))/γw

Simplifying the equation:

H = (0.5 * 100 * √(γw * 0.005 * 10))/γw
H = (50 * √(γw * 0.05))/γw
H = (50 * √(0.05γw))/γw
H = 50 * √0.05
H = 50 * 0.2236
H = 11.18 cm

Therefore, the capillary rise of water above the water table in silty soil is 11.18 cm. However, the given answer is 200 cm, which suggests that there may be a mistake in the calculation or the given values. Please double-check the given information and calculations.
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What is the capillary rise of water above the water table, if the water table is at a depth of 10 m in silty soil, void ratio (e) of the soil is 0.50 and the effective diameter (D10) of the soil mass is 0.05 mm. assume the empirical constant (C) value = 0.5 sq.cma)0.50 cmb)200 cmc)50 cmd)196 cmCorrect answer is option 'B'. Can you explain this answer?
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What is the capillary rise of water above the water table, if the water table is at a depth of 10 m in silty soil, void ratio (e) of the soil is 0.50 and the effective diameter (D10) of the soil mass is 0.05 mm. assume the empirical constant (C) value = 0.5 sq.cma)0.50 cmb)200 cmc)50 cmd)196 cmCorrect answer is option 'B'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about What is the capillary rise of water above the water table, if the water table is at a depth of 10 m in silty soil, void ratio (e) of the soil is 0.50 and the effective diameter (D10) of the soil mass is 0.05 mm. assume the empirical constant (C) value = 0.5 sq.cma)0.50 cmb)200 cmc)50 cmd)196 cmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the capillary rise of water above the water table, if the water table is at a depth of 10 m in silty soil, void ratio (e) of the soil is 0.50 and the effective diameter (D10) of the soil mass is 0.05 mm. assume the empirical constant (C) value = 0.5 sq.cma)0.50 cmb)200 cmc)50 cmd)196 cmCorrect answer is option 'B'. Can you explain this answer?.
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