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1.A certain element of soil is subject to a mean normal stress of 420 kpa and a deviator stress of 280 kpa. The major principal plane is rotated 30 degrees counterclockwise from horizontal. Draw the Mohr circle for this soils element, locate the pole and compute the normal and shear forces acting on horizontal and vertical planes.
2.Calculate the hydraulic radius an equilateral triangle channel running with a flow width of w.
An equal tangent vertical curve conects an initial grade of -3% and a final grade of +1% and is designed for 60mi/h. The PVI is at station 250+50 and elevation 732 ft. What is the station and elevation of the lowest point on the curve
If the interfacial tension between air-mercury interface in a capillary tube is 480 dynes/cm and the contact angle through the mercury is 140, what would be the capillary pressure between oil and water
Compute the following assuming HL93 loading is the live load.Draw loading diagrams so I can see the placement of your loads forALL cases considered.
The total heads given by piezometers A and D are 98.9 cm and 3.6 cm, respectively. What are the total heads given by piezometers B and C?
A river upstream of a brdige corssing is 3 meters deep and has an average velocity of 3 m/s. The bridge piers cause a constriction in the width of the flow by 12%.
A cylindrical volume of soil contaminated with trichloroethylene (TCE). It is about 2.5 m deep and about 4.0 m in diameter. The porosity of the soil is approximately 0.25.
A lagoon with a volume of 1200 m^3 has been receiving a steady flow of a conservative waste at a rate of 100m^3/day for a long enough time to assume that steady-state conditions apply. The waste entering the lagoon has a concentration of 10mg/L.
To prevent this high compression load from buckling the copper pipe, a solid steel support of 2 1/2 inch diameter is placed inside the copper pipe. The copper pipe is 8.000 inches long. The steel support is 8.0001 inches (exactly 1 mil = 1/1000 in..
Calculate the percipitable water (mm) in a 10-km high standard atmoshperic column if the surface conditions are temperature=20 degrees C, pressure=101.3 kPa and the laspe rate is 6.5 degrees C/km.
The foof of the culvert will be located 3 m below ground surface. Currently the groundwater level is at ground surface. But, after installation of the culvert, the groundwater level is expected to drop 2 m below ground surface.
The settling velocity of alum floc in a sedimentation basin is approximately 0.0014 fps. Calculate the equivalent overflow rate in gpd/ft2. What is the minimum detention time in hours to settle out the alum floc in an ideal basin with a depth of 1..
Determine the chemical oxygen demand (COD) of a mixture of 250 mg/l glutamic acid (C5H10N2O3) and 200 mg/l of glucose(C6H12O6).
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