36 a and b gravity of 4.5; assume thegradation of gravel-sized pieces, has a porosity of 30%.36. A gravelly sand channel slopes away from a reservoir,through the reservoir rim, to an adjacent drainagearea. The channel slopes at a gradient of 23 m (75 ft)vertically to 30.5 m (100 ft) horizontally. In cross sec-tion the channel is 1.8 m (6 ft) thick and 4.6 m (15 ft)wide. The channel intersects the adjacent drainagearea at a horizontal distance of 152.4 m (500 ft) fromthe reservoir.a. At minimum pool elevation in the reservoir thewater is 1.5 m (5 ft) above the sandy gravel channel.What is the total pressure head in the gravelly sandseam at the upstream end (or at the reservoir)?What is the total pressure head at the downstreamend of the channel where it daylights into the adja-cent drainage area 152.4 m (500 ft) away? What isthe hydraulic gradient? What is the average veloc-ity of flow if k = 10-2 cm/sec? What is the flow lossin m³/sec (ft³/sec) and in gal/min for the channeluse Darcy's law, v = ki relationship, see also Chap-ter 13, Groundwater)? How long does it take forthe water to flow from the reservoir to the adjacentdrainage area?b. At maximum pool the water stands at 15 m (50 ft)higher than minimum pool. What is the flow lossin m³/sec (ft3/sec) and gal/min for this case? Doesa quick condition occur when the pool reaches thismaximum level? If not, what is required to cause aquick condition? Explain

Given Data: Slope (i) =2330.5or75100 i =0.75 Channel Dimensions, Thickness (t)=6 ft Width (b)=15 ft…

gradation of gravel-sized piece 36. A gravelly sand channel slopes away from a reservoir, through the reservoir rim, to an adjacent drainage area. The channel slopes at a gradient of 23 m (75 ft) vertically to 30.5 m (100 ft) horizontally. In cross sec- tion the channel is 1.8 m (6 ft) thick and 4.6 m (15 ft) wide. The channel intersects the adjacent drainage area at a horizontal distance of 152.4 m (500 ft) from the reservoir.

gradation of gravel-sized piece 36. A gravelly sand channel slopes away from a reservoir, through the reservoir rim, to an adjacent drainage area. The channel slopes at a gradient of 23 m (75 ft) vertically to 30.5 m (100 ft) horizontally. In cross sec- tion the channel is 1.8 m (6 ft) thick and 4.6 m (15 ft) wide. The channel intersects the adjacent drainage area at a horizontal distance of 152.4 m (500 ft) from the reservoir.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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