8. The lower sand layer in the soil profile is in artesian condition. Calculate the maximum depth z of the proposed excavation. Standpipe 3.0 m 0.0m F9 WT Sand Pay1.70 Mg/m Paat-2.10 Mg/m WT 2.0 m Sand 4.0 m Clay Paat-2.10 Mg/m Clay 8.0 m Sand Sand (b) (a)

Q: Answer the question based on the figure given. Gravely sand Ysat = 18.5 kN/m³; Ym = 17.8 kN/m³ Sand…

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Q: Q5): For the soil profile shown in figure, the piezometer reading at point (A) at time (t) after…

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Q: For the section shown in figure. estimate the uniform pressure (4) that the soil can sustain…

A: In half triangle From the Trigonometry  sinθ2=PH=3.696+1.56 θ2=60°θ = 120° So Total Length of Arc…

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: Refer to Problem 3.4. Using Eq. (3.28), determine the average relative density of the sand. Assume…

A: Given; depth=6m Dry unit weight of sand from 0 to a depth of 6m =18kN/m3 Saturated unit weight of…

Q: 4. Given: Refer to fig. 1 Δον 3000 psf H1 = 5ft , H2 = 7 ft , H3 = 6 ft Sand: Gs = 2.65 ,e, = 0.58…

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Q: 5. A falling head permeability was performed on a clayey soils. The initial hydraulic head was 900mm…

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Q: The coefficient of permeability of fine sand is 0.012 cm/sec at a voids ratio of 0.57. Estimate the…

A: Given data, Coefficient of permeability, k1= 0.012cm/s Void ratio, e1= 0.57 e2= 0.72, K2=?

Q: ive permeability functions, compute the ansition zone as S, varies from 80% to S ing values:

A: 2 T 75 dynes /cm=75×10-5/10-2 = 75×10-3 N/m     2πrT cos θ =(πr2 h) ρg⇒ r =2Tcosθhρg…

Q: If grouting tubes of 100 mm diameter are used to grout a stratum of dense sand (n=30%, k = 5*10…

A: Introduction The abandonment grout, also known as pipelines grouting as well as pipe grouting in…

Q: 6.5 A site is underlain by about 14 m of hydraulic fill sand with the following properties. Grain…

A: Given data:- Saturated unit weight = 18.8 kN/m3 Average uncorrected SPT resistance, N = 6 blows/ft.…

Q: The result of the liquid limit tests where N is the no of blows and w is the water content in % are…

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Q: Giventhe figure below and considering a downward flow, forthe sand the following are its properties…

A: Hello dear Please see the attached solution, thanks

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: Q- A suspension of sand like particles in water with particles of diameter 0.10 mm and below is…

A: Given- Size of particles=0.06 mm, Efficiency of removal=100%, Discharge/flow Q=0.10 m3/s, g=9.81…

Q: A test well is to be constructed for dewatering purpose in a planned excavation for foundation. The…

A: To draw the spring and decide the boundaries, we first need to comprehend the idea of drawdown,…

Q: a) A clay soil has a void ratio of 0.5 and a total unit weight of 19.2 kN/m³. Assuming that Gs=2.65,…

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Q: Q: For the soil profile shown in figure. a) Determine the final consolidation settlement. b) If the…

A: Given data in question  Water table position  Depth levels Unit weights Void ratio Liquid limit  OCR…

Q: Solve Please A sand sample of 25 cm length was subjected to a constant head permeability test in a…

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Q: Proposed fill Fine to medium . sand (SW) Dr = 80%* Medium clay (CH) y = 100 lb/ft³ Cc/(1+ eo) = 0.18…

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Q: A plant's grit channel is designed to remove sand, which has a settling velocity of 0.080fps. The…

A: The grit channel is aimed to remove grit particles from the water flow. If not removed, the grit…

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

A:

Q: Q: For the soil profile shown in figure. a) Determine the final consolidation settlement. b) If the…

A: Normally consolidated clay: The soil whose pressure is not greater than the present existing…

Q: In a place, before the construction, CPT test was applied, the sand CPT Data is presented in Table…

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Q: d formation pressures of 12, ottom temperature is 17 °C.

A: Solution to keep a diminished tension in part of circuit

Q: A bed of uniform sand having particle size 0.6 mm and specific gravity as 2.68 has porosity 0.42.…

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Q: glass container with pervious bottom containing fine sand in loose state (void ratio 0.8) is…

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Q: For a constant head laboratory permeability test on a fine sand, the following are given: Length of…

A: ischrge velocity is given byQ=kiAv=kisov=QAi=headlengthi=450mm250mm

Q: The result of the liquid limit tests where N is the no of blows and w is the water content in % are…

A: To find liquidity index

Q: For a constant laboratory permeability test on a fine sand, the following data are given: Length of…

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Q: Assuming the groundwater table is at ground surface and the soil bulk unit weight is 20kN/m3. At 2m…

A: To find out the pore water pressure at a depth 2m from ground level.

Q: along points A,B,C,D 5m 十 5m Soil A 5m Soil B 2m 3m 3m Datum - kA = 10 kg

A: step 1-

Q: A vertical sand column of length 100 cm and cross section area of 150 cm² is allowing the water to…

A: Calculate the (a) rate of flow, (b) the Darcy velocity and (c) the average velocity.

Q: A consolidated-drained triaxial test was conducted on sand. The results are as follows: Confined…

A: Using formula to get internal friction angle

Q: Determine the seepage rate. Given: aj = 48 degrees, a2 = 30 degrees, L1 = 6 m, H = 17 m, H, = 21 m,…

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Q: Q7- For the soil profile and loading condition shown in figure. The final settlement of the clay…

A: Given data:  unit weight of sand, γt=17 kNm3, γsat=20 kNm3 Unit weight of clay, γsat=21 kNm3…

Q: 4-When consolidation of a saturated soil sample occurs, the degree of saturation a- increases b-…

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Q: A soil sample has a unit weight of (1.9gm/cc) and the water content=12%, if Gs=2.65, determine: dry…

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Q: Determine the increase of pore water pressure at M due to the infinite strip loading shown in Figure…

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Field applications of hydraulic conductivity

Hydraulic conductivity is one of the hydraulic properties of soil defined as a measurement of the ability of a porous medium to permit water movement or fluid flow through it. It is denoted by the letter K. It is influenced by the density and viscosity of the fluid. It is also called permeability. Hydraulic conductivity is defined as the ratio of velocity to the hydraulic gradient. The different methods used to determine the hydraulic conductivity are laboratory methods (constant head permeability tests and falling head tests), in-situ field methods (pumping in and pumping out tests), small scale field tests (infiltration tests and slug tests), and indirect methods such as estimation from grain size, consolidation test data, and horizontal capillary test. The pedotransfer function (PTF) method is a specific empirical estimating approach employed in the soil sciences is also used to determine the hydraulic conductivity of the soil.