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Three soil borings were performed at the site of a structure and the SPT blow counts at each depth are shown below. (Do not make any corrections to the blow counts.) The soil below the footings consists of a medium grain sand (SP) and water is located at a depth of 5 feet below the ground surface. The preliminary structural plan calls for a 10 foot wide footing located at a depth of 5 feet which must support a load of 300 kips.
Determine:
The allowable soil bearing pressure with respect to shear failure using a factor of safety of 2.5.
The allowable soil bearing pressure with a settlement limitation of 1 inch.
The allowable total load capacity of the footing. Will it be adequate for the design load?
A home builder must construct a sewage treatment plant and deposit sufficient money in a perpetual trust fund to pay the $5000 per year operating cost and to replace the treatment plant every 40 years.
Processing begins when the lane reaches capacity, what is the uniform deterministic arrival rate if the vehicle queue is cleared in 35 minutes after vehicles begin to arrive (in veh/min.)?
A circular rc girder for the foundation raft of water tower has dia 10m.the udl load transmittedby 8 coloumn on te girder being 300 kn/m.the width of the beam is 500 mm and the over depth.
The channel has side slopes of 4H:1V and a longitudinal slope of 0.5%. Assume a depth of flow of 6-inches. The parking lot slopes at 1% toward the channel from both sides, and the 2-year, 24-hour rainfall is 2in.
The diameter of the soil column is 8.0 cm, the length of the soil column is 16.0 cm. The hydraulic head loss across the soil specimen is 6.4 cm. Over a period of 3 min, 350 mL of water is collected at the downstream side of the soil specimen.
To float a 160 pound man using helium balloons (assume 0.52 cubic feet per inflated balloon). How many balloons would it take? Assume density of air is 1.29 kg/cubic meter and the density of helium is 0.179 kg/cubic meter.
What are minerals? Sketch different types of mineral crystal forms and list different types of rock forming minerals. Describe with examples the importance of mineral identification in engineering applications.
If e is some value at midspan and e=0 at each end of the beam, and the cable within the beam has a parabolic profile. what is the expression I need to use to determine e at some other lenth along the beam
A fully loaded, ocean going container ship is just stable about its longitudinal axis (roll). The ship has a total weight of 155,000 tons, length = 1,600 feet and a beam = 150 feet (assume that it is the shape of a rectangular box). Calculate the ..
A passenger car being driven on a flat and straight section of a highway at a speed of 65 mph reaches a curved section of the highway with a grade of 5% and a radius of 1,500ft.
A membrane biological treatment plant effluent must be disinfected to what level prior for use as unrestricted recycled water. For a flow of 4 mgd and peak flow of 6 mgd, how many lamps are required
two cohernt sources produce interference patern intensity ratio of bright fringe to dark fringe is 9/1. calculate the intensity ratio of sorces.
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