160Chapter 6: Hydraulic Conductivity6.8 The hydraulic conductivity, k of a soil is 0.832 x 10-5 cm/sec at a temper-ature of 20°C. Determine its absolute permeability at 20°C, given that at20°C y = 9.789 kN/m³ and n = 1.005 × 10 3 N-s/m² (Newton-second persquare meter).

Absolute permeability Kˉ=8.542×10−15m2Explanation:

Answered: 160 Chapter 6: Hydraulic Conductivity…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

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Referring to Figure Q3, calculate the following quantities: a. Elevation head, total head, and pressure head at point M on Figure Q3. b. The quantity of water seeping through the dam of Figure Q3 per day. The hydraulic conductivity of the soil is 10-8 Boundary equipotentials Na = 9 N = 3 Boundary flowlines %3D 10 m %3D 12 m 6 m M A (11 m7 m 1 m 2 m Fig. Q3: Earth Dam
A constant head test is performed using a permeameter in the laboratory. The graduated cylinder collects 892 cm3 of water in 112 seconds. The soil specimen diameter = 18 cm , th elevation of water in upper-most piezometer is 181 com , the elevation of water in lowest piezometer is 116.6 cm and the piezometer inlets are evenly spaced at 16.7 cm on center. Compute the hydraulic conductivity, k and choose the correct answer below based on that. O A. 2.1 x 10^-3 cm/second O B. 1.5 x 10^-2 cm/second O C. 2.91 x 10^-2 cm/second O D. 2 x 10^-2 cm/second QUESTION 10 Given: -Applied stress on a soil = 122 kPa %3D -Influence Factor = 0.4 Compute the change in stress at 10 m below the edge of 25 m dimeter oil tank and select the correct answer from below: O A. Change in stress = 44 kPa O B. Change in stress = 49 kPa O C. Change in stress = 40 kPa O D. Change in stress = 42 kPa %3D
Water flows through a sand filter as shown on the figure. The soil has a cross sectional area of 0.33 m². d1=d2=d3=0.52 m. Head difference is 0.92 m. Inflow Outflow Soil A Soil B Soil C -d1- -d2- Coefficient of Permeability for Each Soil: Soil A Kax 2.99 x 10-² cm/s Soil A Kaz 1.44 x 10-³ cm/s Soil B Kbx 1.63 x 10-2 cm/s Soil B Kbz 2.22 x 10-³ cm/s Soil C|Kcx|3.15 x 102 cm/s Soil C Kcz 3.17 x 10-3 cm/s Compute the flow of water through the soils in liters/sec. Use 4 decimal places.
Answer in three decimal places please
Assuming the groundwater table is at ground surface and the soil bulk unit weight is 20kN/m3. At 2m depth below ground level. The pore water pressure is approximately: O a. 19.6 kPa O b. 9.8 kPa O c. 200 kPa O d. 98 kPa
Problem 7.11
When soil water potential in a sandy loam soil goes from -0.1 to -10 bars, the height of an equivalent column of capillary water increases 100 times. The rate of water movement (the hydraulic conductivity): O increases by a factor of about 100 times increases by a factor of about 10 times remains little affected O decreases by a factor of about 1000 times decreases by a factor of about 10 times
33
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Soil mechanics
Calculate the effective hydraulic conductivity for flow parallel and perpendicular to layering. Please show and explain the difference in values.

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160 Chapter 6: Hydraulic Conductivity 6.8 The hydraulic conductivity, k of a soil is 0.832 x 10-5 cm/sec at a temper- ature of 20°C. Determine its absolute permeability at 20°C, given that at 20°C y = 9.789 kN/m³ and n = 1.005 × 10 3 N-s/m² (Newton-second per square meter).