Water flows at a rate of 0.09 m3/s upward through a sand sample with a coefficient of permeability of 27 cm/s. The thickness of the soil is 0.24 m and the area is 0.54 sq. m. Saturated unit weight is 18.9 kN/m3. a) Determine the hydraulic gradient b) Compute the effective stress at the middle of the sample c) Compute the effective stress at the bottom of the sample.

Q: A soil sample was consolidated under a cell pressure of 8 kg/cm², pore water pressure of 4.5 kg/cm².…

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Q: There is an upward flow of 0.06 ml/s through a sand sample with a coefficient of permeability 3 ×…

A: Q = k i A    =k ×hL×A Where, Q  - Discharge = 0.06 x 10-6 m3/s k - Coefficient of permeability = 3…

Q: For a falling head permeability test, the following are given. Length of specimen is 380 mm, are of…

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Q: Q1/[B]: For the clayey sand shown in the figure, the saturated unite weight is 20.69kN/m³ and the…

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Q: (b) The results of a constant head permeability test for a fine sand having a diameter of 90 mm and…

A: Using formula

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: What is the equivalent coefficient of permeability (k) for all soil layers? where equivalent k(2 and…

A: Given data K2=K3= 4.95K1 K4= 4.69K1 K2 & K3 are parallel to the flow line

Q: A stratified soil sample has the following profile characteristics:   LAYER 1: The upper later is…

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Q: The effective internal friction angle of a normal compacted clay is 33°, the triaxial test of this…

A: Given a clay specimen in which triaxial test is performed, it required to calculate water pressure…

Q: PROBLEM No. 4 A sample of dry sand having a unit weight of 17.50 kN/m³ and a specific gravity of…

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Q: Three samples of loose sand were tested under consolidated undrained (CU) conditions. The failure…

A: Given data- Consolidated Undrained (CU) Test- Cell Pressure σc=206 kPaDeviators Stress σd = 122…

Q: Q-3: The constant-head permeability test arrangement in a two-layered soil has been arranged as…

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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: For normal stress of 142kPa, the value of void ratio is 0.6. Determine the amount of normal stress…

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Q: Subject: Soil Mechanics Please provide a solution and a diagram For a laboratory consolidation…

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Q: The result of falling head permeability test for clay sample having an area of 1500 mm² and a length…

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Q: The results of a constant head permeability test for a fine sand are as follows: Diameter of the…

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Q: A normally consolidated clay sample is subjected to a tri-axial test where pore water measurements…

A: We have to find the value of pore water pressure u in kpa.

Q: Estimate the ratio of equivalent hydraulic conductivity

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Q: 4. For a normally consolidated clay, the following values are given. k (cm/sec) 0.45 x 106 e 0.78…

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Q: Three samples of loose sand were tested under consolidated undrained (CU) conditions. The failure…

A: Given  Cell Pressure = 218 kPa Deviator Stress = 130 kPa Pore Water Pressure = 97 kPa

Q: For a normally consolidated clay soil, the following values are given Void Ratio K (cm/sec) 0.302 x…

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Q: a consolidated drained trial test was conducted on a normally consolidated clay with majo minor…

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Q: For normal stress of 150kPa, the value of void ratio is 0.5. Determine the amount of normal stress…

A: Given: First Normal stress, σ1 = 150 kPa First Void ratio, e­1 = 0.5 Second Void ratio, e2 = 0.45…

Q: A soil sample is consolidated in the triaxial chamber under a chamber pressure of 200 kN/m2. The…

A: diverter = deviator   Given data,  Triaxial consolidation  drain valved is closed, which means pore…

Q: During a falling head test, the head fell from 80cm to 65cm in 83 seconds. The specimen was 5cm in…

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Q: 1. For a constant head laboratory permeability test on a dine sand, the following values are given:…

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Q: The hydraulic conductivity of a sand at a void ratio of 0.71 is 0.044 cm/sec, Estimate the hydraulic…

A: Given data in question  Hydraulic conductivity at 0.71 void ratio= 0.044 cm/sec Void ratio 0.55 To…

Q: Compute the angle of resistance in degrees.

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Q: 3- A sand sample is subjected to drainage cutting test with a hollow cylinder device. Rupture occurs…

A: Solution   A)σCell/σ3=200 Kpa           σ1= 300 Kpa       drainage allowed U=0 (pore water…

Q: kPa to 180 kPa. For the same increment in pressure, the void ratio of another clay soil sample N…

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Q: 4. A constant head permeability test is performed on a fine sand and the following data is given;…

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Q: Determine the following A. At the top layer what is the dry density B. Total stress @ point D C.…

A: At the top layer: γd = γwGs1+eγd = 9.81×2.691+0.7γd1 = 15.52 kN/m3 At point D: γsat = Gs+seγw1+eG =…

Q: A triaxial test is performed on a normally consolidated clay. The sample is further consolidated by…

A: Given data:

Q: Q. A saturated sand sample has dry unit weight of 20 kN/m³ and a wwwww specific gravity of 2.5. If…

A: Given - Weight of sand sample, Yd = 20 kN/m3 Specific gravity, G = 2.5 Yw = 10 kN/m3 To find -  What…

Q: Problem attached

A: Estimate the hydraulic conductivity of the clay at a void ratio of 0.75.

Q: i. A sandstone core sample is saturated 100% with water. Calculate the absolute permeability of the…

A: Step 1

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

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Q: A silty sand sample failed during a consolidated-undrained triaxial test at o,=280 kPa and 0,=170…

A: Effective stress Effective stress is described as the stress that determines the strain or strength…

Q: A consolidated-undrained tri-axial test was conducted on a normally consolidated clay sample and the…

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Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.