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A strip footing, 5 m wide, is founded on the surface of a deep deposit of clay. The undrained shear strength of the clay increases linearly from 3 kPa at the surface to 10 kPa at a depth of 5 m. Estimate the vertical ultimate load assuming that the load is applied at an eccentricity of 0.5 m right from the center of the footing's width. (Hint: Try a circular failure surface, determine the equation for the distribution of shear strength with depth, and integrate the shear strength over the radius to find the shear force.)
A grievance has been filed by the union at Dorben Co. regarding the final inspection station, in which the operator slightly lifts a 20 lb assembly, examines all sides, and, if acceptable, sets it back down on the conveyor, where the assembly goes..
A 2.45 m wide rectangular channel has a bed slope of 0.0004 and Manning's roughness coefficient n of 0.015. For a discharge of 2.83 m^3/s, determine the type of water surface profile for depths of 1.52 m, 0.61 m, 0.30 m.
A municipal water plant has four filters that are each 20 ft long by 15 ft wide by 5 ft deep. The demand for water requires that they only operate, on average, three filters per day at a loading of 3 gallons per min / ft^2.
Determine the dimensions of the best hydraulic trapezoidal concrete channel section to convey water at a rate of 2200 gal per min on a channel slope of 0.015 m/m.
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.
A 50 meter wide rectangular channel is carrying a flow of 250 m3/s at a flow depth of 5 meters. To produce critical flow in this channel, determine
A constant head permeameter has a sediment sample with a cross sectional area of 100 cm^2. The sediment sample is 30 cm long. The porous plates on top and bottom of the sample holding it in place have a vertical hydraulic conductivity of 0.001 cm/s a..
For a 10 story RC frame office building ( 100 ft by 100 ft footprint) located in downtwon Philadelphia : Determine the lateral wind pressure (external) along the height of the building. Building Cateogry II, wind expeosure category B. Basic wind s..
A small town produces 0.15 MGD of wastewater. How many acres in size would an aerated lagoon need to be to treat this wastewater assuming a depth of 8 ft. and a detention time of 6 days? (7.48 gal/ft^3 ; 43,560 ft^2/acre)
Give the phase and the missing property of P, T, v and x. Put the values in a table withcolumns P, T, v, and x.
Write out the continuity and momentum equations that govern the surge travelling downstream. (Note: assume that the surge velocity exceeds the water velocity)
Draw a meq/L bar graph forthe following analysis of groundwater, and comment onthe completeness of theanalysis (e.g. based on electroneutrality). Determine the hardnessand total alkalinity, and expressthem in units of mg/L as CaCO3. How much ofthe ha..
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