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A one-story, 50-m wide X 90-m long manufacturing building is to be built on a site underlain by medium dense to dense silty sand with occasional gravel. This soil probably has better than-average engineering properties and average uniformity. There are no indications of previous grading or fill at this site, and the groundwater table is believed to be about 30 m below the ground surface. We anticipate supporting this building on spread footing foundations located about 0.5 m below the ground surface. There are no accessibility problems at this site.
(a) How many exploratory borings will be required, and to what depths should they be drilled?
(b) What type of drilling and sampling equipment would you recommend for this project?
If water at 70 degrees C (row=1.94 slugs/ft^3, vapor pressue= 0.363psia) is used in a simple barometer what is the height of the column of water if the atmospheric pressure is 15 psia
A BOD5 test sample of river water has the following test data. DO on day 0 = 7.9 mg/L. DO on day 5 = 2.3 mg/L. What is the BOD5 of the river water
In order to comply with regulations, an iron/steel sinter plant installs an electrostatic precipitator (ESP) to collect 98% of the 10 ?m particles from an air stream flowing at 2 m3/s
Estimate the required surface area (A), and the diameter and the depth of the tank.
The soil properties are Cc = 0.4, Cr = 0.1 and fsat = 18 kN/m3 for both clays, and the water table is 1 m below the soil surface. Determine the settlements when a stress of 60 kPa is applied by the building.
Using the Hazen-Williams approach (seecoefficient table below), find the headloss of water flowingthrough 1,000-ft of 6-ft diameter concrete pipe at a flow rate (Q)of 80 ft3/sec
If an embankment is placed that adds an average additional stress of 32psi to the clay, compare the settlement from the laboratory consolidation test to the settlement from the estimated field consolidation curve.
The distribution coefficient of styrene distributed between ethylbenzene and ethylene glycol at 25 degrees C is .19 mass fraction in the ethylene glycol phase per mass fraction in the ethylbenzene phase.
Water flows in a 100-m long pipe at 3 m/s. If the water temperature is 20 degrees C, determine the minimum valve-closure time to avoid creating the water-hammer pressures. What is the maximum water-hammer pressure that can occur
Member ABC is supported by cable CD and a square collar at A that fits loosely over the smooth square rod. Determine the tension in cable CD. The smooth rod is fixed at its base and cannot rotate.
. In order to get full credit for this problem you must list all unknown species that would exist in the raindrop and all pertinent equations regardless of their level of significance. You must algebraically solve the equations to determine pH.
when a force F acts on a linear spring, the elongation x of the spring is given by F=kx, where K is called the stiffness of the spring. Determine the dimension of K in terms of the base dimensions of an absolute system of units
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