c) The characteristics of a soil profile are summarized in the Figure for Question 5 c. Seepage is occurring horizontally through these layers. Assuming a unit thickness (into the page) and a hydraulic gradient equal to 0.8, calculate the maximum height that the bottom soil layer could have such that the combined flow rate through the layers is no greater than 2.84 x 104 m³/s. NOT TO SCALE Impermeable k = 5.0 x 10-5 m/s k = 5.0 x 10-6 m/s k = 3.0 x 10-5 m/s 3 m 3 m 5m ? m

Q: From the figure shown, the thickness of a permeable soil layer is 1.1m making an angle of 15degrees…

A: Step 1:Step 2: Step 3: Step 4:

Q: A silty sand fill 4.5 meters thick and an estimated density of 20 kN/m³ is to be placed over 4.0 m…

A: Cv = 0.79 m2/yr = 20 kN/m3

Q: 1. Given the structure and the flow net detailed in Figure 1. The coefficient of permeability (i.e.…

A:

Q: EXAMPLE 9.4 Refer to the flow net shown in Figure 9.11 (which is the same one as in Figure 8.8).…

A:

Q: A 6 m thick clay layer undergoes 90% consolidation four times faster under two- way drainage as…

A: 6 m thick clay layer- 90% consolidation 15 m thickness clay layer- It is needed to find the…

Q: The hydraulic gradient for quicksand condition is equal to 1.22 with a void ratio of 0.41. The moist…

A: Given:- Moist unit weight Υt=19.17 KN/m3Void ratio e=0.41Hydraulic gradient, iC=1.22 To find:- water…

Q: A sand sample has a bulk density of 20kN/m³ and a degree of saturation of 70%. If the specific…

A: A sand sample- Bulk unit weight  γb= 20 KN/m3, Degree of saturation S = 70%, Specific gravity G =…

Q: In the soil profile shown below, the clay is normally consolidated and H,=9m, H2=5m, H3=3m. The…

A: Given  For sand  e= 0.56 , Gs = 2.6  Clay  Liquid limit= 63 % e= 0.83, Gs= 2.77

Q: Laboratory tests performed on a saturated alluvial subgrade soil gave the following information: In…

A: Given: water content w=11.9% Specific gravity G=2.65 D30=8 mmD60=20 mmD10=4.76 mm

Q: A sample of sand has a bulk unit weight of 17.61 kN/m3. It is found that the sand is 60% saturated.…

A: Bulk unit weight sand is 17.61 kN/m3Saturation is 60 %specific gravity of sand soil is 2.7to find…

Q: A soil has a discharge velocity of 6×10 m/sec and a void ratio of .50. Its seepage velocity is. A B…

A: Discharge velocity- V=6×10-7 m/s. Void ratio e=0.50, To Find- The value of the seepage velocity Vs.

Q: Homework Chapter (5) A permeable soil layer is underlain by an impervious layer as shown in Figure.…

A: H=4.2m k=4.8 * 10-3 cm/sec

Q: 1. (30 pts) The soil profile shown below consists of 10 meters of sandy silt overlying gravel. The…

A: Step 1:Step 2: Step 3: Step 4:

Q: . The specific gravity and insitu void ratio of a soil deposit are 2.71 and 0.85 respectively. The…

A: Specific gravity G=2.71 Void ratio e=0.85   It is needed to find the value of the critical hydraulic…

Q: The hydraulic gradient for quick condition is equal to 1.13 with 0.41. The moist unit weight of…

A:

Q: Find the flow rate of water in cm3 /s if the value of soil permeability is 0.9 cm/s, hydraulic…

A: Soil Permeability K = 0.9cm/sec Hydraulic Gradient = i = 1.25  Diamerter of soil specimen = 175mm =…

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.