A circular tunnel discharging 0.56 cu. m./sec. needs repair at its invert. In order to undertake this work it will be necessary to isolate the area by means of two cofferdams, and pass the water through 18-in. steel pipes. If the difference in elevation between the water surface upstream of the cofferdam and the water surface downstream is 0.6 m., and the coefficients of head loss at the entrance and outlet of the pipe are 0.5 and 0.3, respectively, determine the number of pipes (use exact value shown by your calculation with 2 decimal points) needed to divert the discharge. Use f = 0.019. Length of pipe = 94 m.
A circular tunnel discharging 0.56 cu. m./sec. needs repair at its invert. In order to undertake this work it will be necessary to isolate the area by means of two cofferdams, and pass the water through 18-in. steel pipes. If the difference in elevation between the water surface upstream of the cofferdam and the water surface downstream is 0.6 m., and the coefficients of head loss at the entrance and outlet of the pipe are 0.5 and 0.3, respectively, determine the number of pipes (use exact value shown by your calculation with 2 decimal points) needed to divert the discharge. Use f = 0.019. Length of pipe = 94 m.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A circular tunnel discharging 0.56 cu. m./sec. needs repair at its invert. In order to undertake this work it will be necessary to isolate the area by means of two cofferdams, and pass the water through 18-in. steel pipes. If the difference in elevation between the water surface upstream of the cofferdam and the water surface downstream is 0.6 m., and the coefficients of head loss at the entrance and outlet of the pipe are 0.5 and 0.3, respectively, determine the number of pipes (use exact value shown by your calculation with 2 decimal points) needed to divert the discharge. Use f = 0.019. Length of pipe = 94 m.
Round your answer to 2 decimal places.
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