For the soil profile shown in fig. top layer is sand. Initially the water table is 5m below ground level, which is lowered permanently to a depth of 15 m below ground level by pumping over few years. Assuming Yw= 10 kN/m³, unit wt. of sand above wt is equal to 18 kN/m³, unit wt. of sand sand clay below water table equals to 20 kN/m³. Coefficient of volume of compressibility is 0.25 m²/mN. 15 m 5 m 5 m hC Original GWT Lowered GWT Clay

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

A: eo = 1.255Cc = 0.29Cr = 0.035Cv = 0.79 m2/yrNOTE : As per guidelines, first 3 parts are solved.…

Q: Determine vertical permeability of soil

A: Given data : k1=10-3  cm/seck2=2×10-4  cm/seck3=10-5  cm/seck4=2×10-3  cm/sec

Q: average (Darcy) velocity through the aquifer and the flow rate per meter width of aquifer?

A: HYDROLOGY:

Q: A stratified soil has the following properties: h1 = 1.75m h2 = 2.5m h3 = 4.35m k1 = 2.25E-03 cm/sec…

A: What is the equivalent coefficient of permeability if the water flows parallel to the layer of soil…

Q: For the seepage situation shown below, calculate the effective vertical stress in kPa at point A.…

A: Given data in question  Saturated weigth 2100 kg/m3 Depths Downward seepage condition  To find out…

Q: For a falling-head permeability test, the following values are given: • Length of specimen = 250 mm.…

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Q: CVE 331: Theoretical hydraulic conductivity calculation ki Problem 1: The hydraulic conductivity of…

A: To solve with the help of relation between hydraulic conductivity and void ratio

Q: - The flow rate knowing that the coefficient of permeability is given by the following equation k =…

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Q: A 15 m deep sand layer has its groundwater table level at 5 m below the ground level. If the…

A: Depth of sand layer = 15 mDepth of Ground water table = 5 m below GLSat. density of sand = 19.5…

Q: is placed in the rain. During the rain the volume of the sample rem but the degree of saturation…

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Q: d. Problem III. A sample of wet soil has water content of 18% and a porosity of 42%. The unit weight…

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Q: Question 2 A sand layer is under artesian pressure as shown in Figure Q2. The water depth in the…

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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: = 370 mm A = 145 cm^2 h = 340 mm Water collected in 3 min Q = 580 cm^3 Void ratio of sand e= 0.66…

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Q: A layer of sand extends from ground level to a depth of 9m and overlies a layer of clay, of very low…

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Q: 2. A deposit of clay is underlain a layer of sand. The clay layer is 2.8 m thick, void ratio = 0.67,…

A: For sand: e=0.51 Gs=2.65 H=3.5m For clay: e=0.67 Gs= 2.75 H=2.8m To find total lateral pressure at…

Q: Q1. A moist soil has a total (bulk or moist) density of 1800 kg/m³. The moisture content of this…

A: Given data  Bulk density  Moisture content  Degree of saturation  To find Void ratio Specific…

Q: The figure shows the layers of soll in a tube that is 100mm by 150mm in cross-section. Water is…

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Q: 13. A soil has a specific gravity of solids (Gs) of 2.65, a water content of 13% and a void ratio of…

A: Porosity: Porosity is the measure of the void space in the material. The amount of void space is…

Q: Problem III. A sample of wet soil has water content of 15% and a porosity of 45%. The unit weight of…

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Q: A saturated soil has water content w = 23%, unit weight %at = 20KN/m³. Take w = 10 kN/m, try to find…

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Q: The total volume of a soil specimen is 80,000 mm3 and it weighs 150 grams. The dry weight of the…

A: Given Data Density of soil specimen=2680 kg/m3 Density of water=1000 kg/m3 We have to find specific…

Q: A stratified soil has the following properties: h1 = 1.75m h2 = 2.5m h3 = 4.35m k1 = 2.25E-03 cm/sec…

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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 surface of a saturated clay deposit is located permanently below the groundwater table. The clay…

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Q: t that will cause boiling fo 55, 0.7, and 0.8.

A: Given data-  Specific gravity (G) = 2.66  Void ratios (e) = 0.35, 0.45,0.55,0.7,0.8

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: Qs. A 1 m thick layer of saturated clay, drained at both faces, settles by 10 cm in one year. If a…

A: Thickness of clay layer = 1 mSettlement = 10 cm

Q: 50 ft thick sand is underlain by 25 ft clay. The ground water table, initially at the ground…

A: To find :- Effective tive stress at middle of clay layer when  1. Water table is at ground surface…

Q: A container of volume 3 x 103 m³ weighs 10 N. Dry sand was poured to fill the container. The…

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Q: A sand with G, = 2.66 and e = 0.60 is completely dry. It then becomes wetted by a rising groundwater…

A: In dry condition The specific gravity of soil, G = 2.66 Void ratio of sand, e = 0.6 When the…

Q: The weight density of a soil is given by y = 15 + 0.75h, where y is in KN/m3, and h is in  meters.…

A: Consider the depth "dh" at the depth "h" from the surface and calculate the change is pressure in…

Q: The soil profile shown below is typical of Miami-Dade County. Estimate the equivalent permeabilities…

A: Given data : This is a problem of Soil Mechanics.

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: Soil mechanics

A: Stability is given by :σA=uA

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.