For a constant head laboratory permeability test on fine sand, the following values are given: Length of specimen, L = 15inches Diameter of specimen, D = 3inches Head difference, h = 22inches Water collected in 120 seconds = 0.057cu.in Void ratio, e = 0.37 a. Determine the hydraulic conductivity (in/min) of the soil.  b. Determine the discharge velocity (in/min) through the soil.  c. Determine the seepage velocity (in/min) {νs=νn}.

Q: A falling head permeability test on a specimen of fine sand (Area = 12.5 cm², Length = 10 cm)…

A: Let us first calculate the void ratio from the first test We have γd =γw*G1+e γd = dry unit weight…

Q: 6.5 Refer to Figure 6.4. For a constant head permeability test in a sand, the following values are…

A: Permeability = 0.0215 cm/secSeepage velocity = 0.068 cm/secExplanation:

Q: For a falling head permeability test, these values are given: Length of the soil specimen = 200 mm…

A: Length of the soil specimen = 200 mmArea of the soil specimen = 1000 mm2Area of the standpipe = 40…

Q: 1- Find Coefficient of consolidation in cm²/s using root time and TV90% = 0.848. 2- Find…

A: Q1/ specimen of the fine-grained soil, 75 mm in diameter and 20 mm thick was tested in an oedometer…

Q: 2. A specimen (50 mm diameter and 100 mm height) of moist sand weights 3.31 N. Its dry weight is 3.0…

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Q: 2.11 A sand has the following: Do = 0.2 mm, D = 0.4 mm, and void ratio e = 0.6. a. Determine the…

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Q: 7.8 The following data are for a falling-head permeability test: • Length of the soil sample = 140…

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Q: Please determine the hydraulic conductivity of soil sample. The length of soil is 200 cm, outflow…

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Q: The results of a constant-head permeability test for a sand sample having a sectional area of…

A: Using Darcy's law

Q: From the figure shown, H₁ = 0.60, H₂ = 0.90 m. and h = 0.45 m. The sand has a saturated unit weight…

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Q: A layered soil is shown in following figure. a) Estimate the hydraulic conductivity for flow in the…

A: Given data of soil  Assume  K1 = 10-3 cm/sec  K2 = 2 *10-4 cm/sec  K3 = 10-5 cm/sec  K4 = 2 *10-3…

Q: 2. Estimate the hydraulic conductivity (in cm/sec) of a poorly graded sand with the following…

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Q: The hydraulic conductivity of a soil sample (3.4 x 10-4 cm/s) has been determined via a permeability…

A: solution  the hydraulic conductivity depends on the temperature it increases with the increase in…

Soil Compaction Test

Soil compaction is the major area of geotechnical engineering. Soil is composed of multiple pores present on its surface, while the soil is mainly composed of gravel, sand, rocks, etc. The arrangement of these rocks and gravels is such that they build up voids (spaces) between them, which allows spaces for the roots of the plants and crops to spread and absorb the required amount of nutrients. Soil compaction is a major problem primarily caused by human activities, micro-organisms, and other multiple factors.