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1) see attachement
A 25' wide and 35' high concrete dam with a 25' deep and .3' wide cutoff wall at theupstream end of the dam is retaining 25' of water. Bottom of this dam is 5' below the surface of the soil. Assuming zero tail water, please answer the following questions. soil properties for the 55' deep soil layer below which there is an impermeable
and deep rock: k = 10^-3 ft/min , Gs=2.7 and saturated unit weight of soil is 120 pcf
1. Seepage loss per unit length
2. Pore pressures at points A (25feet below the downstream end of the dam), B (25 feet flow atthe midpoint of the dam) and C (25 feet below the upstream end of the dam, just below the tip of the cutoff wall)
3. Exit gradient and possibility of boiling
4. If the weight of a unit with of dam with cutoff wall is 50 kips, compute the factor of safety against the uplift
A very long rectangular channel connects two reservoirs and has a longitudinal slope of 0.005. The channel has a width of 10 m and a Manning's n of 0.030.
Consider the pressure-driven flow between stationary parallel plates separated by distance 2b. Coordinate y is measured from the channel centerline. The velocity field is given by u=u max(1-(y/b)^2).
Given computer-generated direction field. Then sketch, by hand, an approximate solution curve that passes through each of the indicated points. Use different colored pencils for each solution curve.
The compressive strength of concrete has a (population) mean of 2500 psi and a (population) standard deviation of 50 psi. Find the probability that a random sample of n= 5 specimens will have a sample mean strength
The elastic modulus is 40 GPa, the yield stress is 150 MPa, the ultimate stress is 525 MPa, and the ultimate strain is 0.38 (mm/mm). Perform the following tasks for this material. compute the tangent modulus between yield stress and ultimate stres..
If the effective stack height of the plant is 100 m, and the ground reflects the SO2 emission perfectly what is the SO2 concentration at a sampling point located 2 m above the ground in the town.
During the recent camping trip, a curious junior engineering student (like yourself) noticed that water is being discharged from a high reservoir to a stream in the valley through a 0.3 m diameter plastic pipe. The difference in elevation between the..
A fellow I know wanted to know the coefficient of friction between steel and commercial carpet. The value was not in the tables of any textbook he had, so he devised an experiment.
A small truck is to be driven down a 4% grade at 70mi/hr. The coefficient of road adhesion is 0.95, and it is known that the baking efficiency is 80% when the truck is empty and decreases by one percentage point for every 100 lb of cargo added.
determine the amplification factor and the magnitude of steady state response (for deflection at A), when a horizontal force of 20Sin(8t) (N) is applied at B. (L= 250 mm, distance from center of mass to C = 40mm)
A room 7m x 6m x 3m high is to be electically heated to maintain the inside temperature at 20 C, when it is 0 C outside. The room has 2 windows each 1.2m x 1.8m and a sliding glass door 2.4m x 2.1m.
water from a waste water treatment plant is released into a receiving pond that has a volume of 5 ac-ft. one of the reasons for doing this is to assure that the chlorine residual is below 0.1mg/L before the water is released to a stream as require..
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