Find the hydraulic conductivity coefficient of permeability, k. A falling head test is performed on a clay soil, for the test.Sample Length = 8cmCross sectional area of sample = 10 sq.cmCross sectional area of stand pipe = 1.5 sq.cmHeight of water in the stand pipe at the start of test period = 100cmHeight of water in the stand pipe at the end of test period = 90cmTime = 60 mins.

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Answered: Find the hydraulic conductivity…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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2.5. Water is flowing in a horizontal 200-mm diameter pipe at a rate of 0.06 m³/s, and the pressures at sections 100 m apart are equal to 500 kPa at the upstream section and 400 kPa at the downstream section. Estimate the aver- age shear stress on the pipe and the friction factor, f.
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What is the max and max T of the following given: 20 kNm, diameter = 10 cm, G = 120 GPa and Use E = 200 Gpa for thermal stress problem 20 kNm diam max Max 4m = 10 cm G= 120 стра Ө T
Also, determine the effective stress at a depth of 7 ft. on the below ground surface. (10) Determine the pore water pressure at a depth of 5 ft. below the ground surface. (10) Problem 1: of s 19 Ground Surface 3' Y = 112 pcf 4' Y sat = 120 pcf
A. Oil with Spgr=0.80 forms a layer 0.90m deep in an open tank that is otherwise filled with water. The total depth of water and oil is 3.0m. What is the gage pressure at the bottom of the bottom of the tank? What is the total force at the bottom of the tank? oil 2 0.90m water 2.10m 3
A cylindrical steel pressure vessel with a diameter of 1200 mm and a wall thickness of 20 mm is subjected to an internal pressure of 4.5 MPa. Determine the circumferential stress in the tank.
A thick-walled pipeline with internal and external diameters of 600 mm and 1000 mm, respectively, is subjected to an internal pressure P,. The cylinder is made of steel where E = 200 GPa, a,„ki= 250 MPa and v = 0.3. Given that the safety factor is 2, what is the maximum allowable pressure P, according to:- a) Tresca criterion, and b) von Mises criterion. Subsequently, sketch the HOOP stress distribution in the wall thickness of the pipe and indicate the values of the stresses on the inner and outer surfaces for EACH OF THE CRITERION mentioned above.
Air flow over flat plate; velocity (u) and boundary layer thickness (6) can be expressed as: u 3 y 1/y —= -- Ur 28 2 S } $= 4.64 x ex If free stream velocity is 5 m/sec and air has kinematic viscosity of 2 x 10-5 m²/sec and density of 1.23 kg/m³, the wall shear stress at x = 1 m is
A falling head hydraulic conductivity test is performed on a sample of soil. The stand pipe having a diameter of 0.20cm is observed and it takes 60 seconds for the water to drop by 50 cm from an initial hydraulic head of 90cm. The sample has a length of 20cm, and a diameter of 4cm. a.Find the coefficient of permeability (cm/sec) b.Solve for the hydraulic gradient c. Compute the rate of flow of water in the soil. (cm' /sec.) 0.20 cm 6 s TAND PIPE 50cm Acm 不 20am -: SOIL
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A mechanically cleaned bar rack screen is installed ahead of a velocity controlled grit chamber. The bars are 10 mm thick, and the openings are 20 mm wide. The flow through the screen is 0.75 m3/s, and the depth of flow is 1.45 m in the channel upstream of the bar rack. 1. Calculate the flow velocity through racks (m/s). 2. Calculate the water depth in the channel downstream of the bar rack (m).
a. For Figure 2 below, calculate the effective hydraulic conductivity for flow parallel and perpendicular to layering. Show your work. Explain the difference in values. Figure 2 sand layer; K = 1 m/d; thickness = 5 d 10.5 m clay layer; K = 0.000001 m/d; thickness = 0.5 m sand laver: K = 1 m/d; thickness = 5 m b. Figure 3 below shows the effects of groundwater refraction, assuming that groundwater flow in the top layer is almost horizontal i.e., a = 89.8°, what is B and what can you say about the flow in the clay layer? a a K, b B K Figure 3.

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