meter tube of uniform diameter is filled with three layers of different soils (Figu conductivities of the soils are: k1 = 1.0 x 10-5 m/s, k2 = 2.0 x 10-5 m/s and k3= rmine the pressure head, elevation head, and total head at points A, B, C and cified datum. sure the length of flow paths along the centerline of the tube.

meter tube of uniform diameter is filled with three layers of different soils (Figu conductivities of the soils are: k1 = 1.0 x 10-5 m/s, k2 = 2.0 x 10-5 m/s and k3= rmine the pressure head, elevation head, and total head at points A, B, C and cified datum. sure the length of flow paths along the centerline of the tube.

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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(a) A stratified aquifer has a total thickness of 30 m and is made up of three layers. The top layer has a coefficient of permeability of 20 m/day and a thickness of 12.0 m. The middle and bottom layers have permeability of 15 m/day and 20 m/day respectively and are of equal thickness. Calculate the following:
A 15 cm vertical soil sample is taken and placed in constant head permeameter. The surface area of the soil sample is 20 cm2. h1 is measured at 25 cm and h2 is 10 cm. The water that flows through the soil sample has a constant discharge and 95 cm3 is collected in 15 minutes. Calculate the hydraulic conductivity of the soil sample. What kind of soil you think this is?
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1. A sand sample of 35 cm² cross sectional area and 20 cm long was tested in a constant head permeameter. Under a head of 60 cm, the discharge was 120 mL in 6 min. The dry weight of sand used for the test was 1120 g, and G₁ = 2.68. Determine (a) the hydraulic conductivity in cm/sec, (b) the discharge velocity, and (c) the seepage velocity.
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