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A well of 0.1 m radius is part of a well point network to keep an excavation dry (Figure P6.13). The groundwater at the far edge of the excavation must be 0.5 m below the base.
(a) Calculate the radius of influence.
(b) Calculate the maximum drawdown.
(c) Plot the drawdown curve.
(d) For the radius of influence in (a),
(i) calculate the discharge if the well radius increases to 0.2 m, and
(ii) compare it to the discharge for the 0.1-m-radius well.
The face of a 100m wide rectangular dam is built at an angle of 60 degrees above the horizontal and holds back a body of fresh water that is 30m deep at the face of the dam
A falling-head permeability test is being conducted on a saturated sample of clayey silt having hydraulic conductivity of 6.5 x 10-9 m/s. The diameter and the length of the sample are 100 mm and 150 mm.
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If the conveyor belt B has a speed V2 = 3.0ft/sec. and the objects are delivered to this belt with no slipping, calculate the coefficient of friction πk between the objects and the chute
If the BOD5 of a municipal wastewater is 310 mg/L and the BODU is 340 mg/L, determine the BOD reaction rate constant (base e). What would be the 3 day 30°C BOD Assume, temperature coefficient = 1.047.
Compute the area in acres of a triangular parcel of land whose sides measure 48.78 mm, 84.05 mm, and 69.36 mm on a vertical photograph taken from 6050 ft above average ground with a 152.4 mm focal length camera.
A 30 lb uniform cylinder can roll without sliding on a 15 degree incline. A belt is attached to the rim of the cylinder, and a spring holds the cylinder at rest. If the center of the cylinder is moved 2 in.
Composition, like inheritance, demonstrates what software development advantage of object-oriented programming?
A pipe network in the form of a cube is made with twelve identical pipes. Each pipe forms an edge of the cube. If the entire inflow and outflow occurs at two adjacent corners, determine the percentage of the flow which passes through the pipe connect..
Calculations with steam mixed with additional steam at a different pressure, A steam press at 650Kpa + dryness fraction of 0.9% flows along a pipe at a rate of 3.5Kg per second
A hydraulic cylinder must produce a minimum force of 3 kN for a pressure of 800 kPa. What minimum diameter piston is required
You have been hired to review an accident scene where a vehicle hit a light pole at the intersection of main and 5th. The vehicle was estimated to hit the light pole at 30 mph.
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