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Soil is excavated from a borrow to construct an embankment with a net volume of 50,000 cy with 95% of Modified Proctor maximum dry density of 110 pcf with a Modified Proctor optimum water content of 8%. Dry density of soil in borrow 114 pcf. Soil specific gravity 2.35. Water content in borrow 16.5%. What would be the minimum number of truckloads required to transport the soil from the borrow? Each truck holds 8.2 cy of soil with void ratio of 1.12.
Need to know how the equation for splitting tensile strength of a concrete cylinder f(ct) = 2P/pi*D*L is derived using mechanics of materials or linear elasticity approach.
A clay lense of Kc=0.10cm/day is sandwiched somewhere inside a vertical soil column of height 100cm that is otherwise filled withsand of Ks=200cm/day. A depth of water d=10cm is ponded above the surface.
The trapezoidal channel has a slope of .004. The sides of the canal are sealed with a plastic membrane, which is protected by a 1 ft thick layer of 1 in diameter gravel. The bottom is a 6 in slab of rough concrete.
a. Determine the hydraulic radius, hydraulic depth, and section factors for critical and normal flows. b. Determine the alternate depth of flow that will carry the same discharge.
What are the effects of degree of hydration on capillary pore volume, capillary pore size, porosity, permeability, and compressive strength of hydrated cement (Degree of hydration: hydrated cement/total cement, increases with time and temperature)
A 50-kg crate is pulled by the constant force P at an angle of 30 deg off the x axis- the crate starts from rest and achieves a speed of 10 m/s in 5 s. the coefficient of kinetic friction between the crate and ground is 0.2. Determine the magnitude o..
the trailer has a mass of 580 kg and a mass center at g. the spool has a mass of 200 kg with a mass center at o and a
An Electrostatic Precipitator must treat 500,000 acfm with 99% efficiency. Assuming an effective drift velocity of 0.4 ft/sec, calculate the required plate area in ft^2, and the number of plates if each is 20 ft tall by 10 ft long, and there are 4..
A zone in the CBD is projected to contain 1,525,000 ft2 of residential space; 3,675,000 ft2 of service establishments; and atotal retail activity floor area of 2,100,000 ft2.
A tugboat tows a ship at a constant velocity. The tow harness consists of a single tow cable attached to the tugboat at point A that splits at point B and attaches to the ship at points C and D.
In oder to erect a perpendicular to a line bythe method inducate in figure the distance bc is equal to 40 ft. when the zero mark of a 100-ft tape is held a point B and
determine the force in member AC, FH, and FG and indicate if the member is in tension or compression. List all zero force members.
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