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A standard undrained triaxial test was performed on a fi ne-grained soil. The soil was consolidated to a cell pressure of 120 kPa and then unloaded to a cell pressure of 80 kPa. The axial stress at failure (critical state) was 64 kPa. Assume Λ = 0.8.
(a) Determine the normalized undrained shear strength.
(b) Estimate ∅'cs.
(c) Estimate the undrained shear strength of the same soil if it were normally consolidated.
(d) Estimate the undrained shear strength of the same soil if it were to be subjected to direct simple shear.
(e) Recommend the undrained shear strength for use in the design of (1) a foundation for an oil tank, and (2) a slope.
A single-scoop ice cream cone is a composite body made from a single scoop of ice cream placed into a cone. (Part B 1 figure) Assume that the scoop of ice cream is a sphere with radius r = 1.67
What is the peak discharge for an area with the following characteristics The rainfall intensity is 120 mm/hour. Land use Area, m2 Forest 10,000 Single family residential 9,000 Parking lots 5,000
a block of mass m is on an inclined plane that makes angle from the horizontal plane. the coefficient of friction between the plane and the block is µ. find the point where the normal reaction N acts on the block.
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One second later another ball is thrown vertically from the ground with a velocity of 10m/s. Determine the height from the ground where the two balls pass eachother.
Write the mass balance equation for a plug flow with a second order decaying substance,C. Solve for the steady state concentration of C as a function of the second order rate constant k, longitudinal distance x, mean velocity u, and the concentrat..
If the central collar is given a vertical harmonic movement with a frequency of 4 Hz and an amplitude of 3 mm, find the amplitude y0 of vertical vibration of each ball.
1.How can the water pressure in a pipe be measured simply 2.What force causes the water pressure to fall as it flows along a pipe 3.How do you think the pressure drop will change when each of the three variables changes
The specifications for a project specify that the in-situ soil must be compacted to 98% of its maximum Modified Proctor Density. What is the range of water contents of the in-situ soil that will meet this criteria
You have a beaker filled with coarse sand. The capacity of the beaker is 100cm^3. Next, you add to the beaker 40cm^3 of distilled water, filling the water level exactly to the top of the sand.
A mass of 200g of saturated liquid water is completely vaporized at a constant pressure of 100KPa. Determine a) the volume change b) the amount of energy added to the water
the flow into the lake is from is from a stream is 300 m3/d andthe flow into the lake from runoff averages 20 m3/d. The lake is used for fishing by the local residents but the pesticides from local farms may damage the fish population.
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