A drainage ditch must be designed to carry a peak flow of 1.5 m3/s along 900 m. The…
1 answer below »A drainage ditch must be designed to carry a peak flow of 1.5 m3/s along 900 m. The topography is described in the figure bellow, where water discharged at location 0 as a free overfall. The ditch to be lined with concrete (finished). The maximum right-of-way available is 3.5 m. The maximum depth of excavation allowed is 1.5 m to avoid encountering rock. Maximum ditch side slopes of 2:1.
1) Determine the dimension of the ditch. For safety factor water surface level at the peak flow should be at least 10 cm lower than the bank elevation (freeboard =10 cm). 2) After the ditch was finished a road crossing the ditch was needed at station 220 m. The road is 7 m width. Design the culvert that will carry the peak discharge under the roads.
Attachments: 574A53CE-0076….jpegApr 27 2022 09:38 AM
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