Need help asap. How to come up the value of H1, H2, H3? and the
number 6 on the highlighted part. Please explain that solution.Show
also the correct detailed figure. Thank you.
Need Help Asap How To Come Up The Value Of H1 H2 H3 And The Number 6 On The Highlighted Part Please Explain That So 1 (47.43 KiB) Viewed 23 times
Need Help Asap How To Come Up The Value Of H1 H2 H3 And The Number 6 On The Highlighted Part Please Explain That So 2 (62.63 KiB) Viewed 23 times
Exercise No. 35 An overflow masonry dam is to be constructed across a stream. The stream is estimated to have a maximum flood of discharge of 850 m^3/s when the elevation of the water surface is 345 m at the dam site. Six sluice gates each 2.5 m high and 2 m wide are to be constructed in the dam with their sills at elevation 342 m. The main overflow weir for which C= 1.45 will be 60m long with a crest elevation at 360 m. An auxiliary weir 180 m long with a crest elevation at 361 m will operate during floods. For this weir C= 1.88. With all the sluice gates open, what will be the surface elevation upstream of the dam when the discharge is 850 m^3/s W. S. 25m d=? 2 m 2 m 2 m 2 m 2 m 360 m 342 m 60 m 180 m
*We let h (the head of the auxiliary weir) as the h for the whole figure = CA/2gH,(6) = 0.6(2)(2.5)/2 (9.81)(1 + 17.75) (6) =79.731 + 17.75) 3 3 = = = Q2 CL2H2z = 1.45(60)(h + 1)ã = 87(h + 1); - (3 = CL3H22 = 1.88(180)(h)Z = 338.4hỉ Qr = Q1 + Q2 + Q3 = 850 = 79.73(h + 17.75) + 87(h + 1)2 + 338.4h3 ż = = = 3 = W. S. h 1m 17.75 361 m 360 m 342 m
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