Water backs up behind a concrete dam as shown in the figure. Leakage under the foundation gives a pressure distribution under the dam as indicated. If the water depth, h, is too great, the dam will topple over about its toe (point A). Base on a per unit length analysis of the dam with specific weight of the concrete as 150 lb/ft3, determine the maximum water depth for the following widths of the dam: Water 80 ft Water h, = 10 ft PA=yh P= yh 7) = 30 ft

Water backs up behind a concrete dam as shown in the figure. Leakage under the foundation gives a pressure distribution under the dam as indicated. If the water depth, h, is too great, the dam will topple over about its toe (point A). Base on a per unit length analysis of the dam with specific weight of the concrete as 150 lb/ft3, determine the maximum water depth for the following widths of the dam: Water 80 ft Water h, = 10 ft PA=yh P= yh 7) = 30 ft

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A) determine the location of the center of pressure (hcp) of an inclined rectangular gate with water on one side as shown. Unit of the correct answer: ft
(a) Determine the magnitude, direction, and line of action of the horizontal and vertical components ofthe hydrostatic force acting on curved surface AB shown in figure, which has a radius of 2 m and awidth of 4 m.(b) Assume that the water exists on the opposite side of the vertical barrier (the surface AB remains asshown with point A 8 m below the surface level). Determine the information requested in part (a)
A masonry dam having a sheet piling cutoff at the upstream and is located at a reservoir site as shown in the figure. Nf= 4; Nd= 10 and K= 0.003m/min 1) compute the seepage discharge in cu MTR/day 2) compute the uplift force acting on the base; 3) compute the exit or escape gradient of the water at the downstream tip of the dam if the length of the flow field is equal to 1.80m
The bed of a corrugated channel, with Manning’s coeffcient n =0.019 s/m^1/3 drops 25 m every 1500 m. The channel has a semi-circular cross section with total width of W = 10 m (i.e. radius of the semi-circle is 5 m). 1. Given that the stream has a water depth of h = 2.5 m, find the flow rate in the stream 2. A concrete divider with the same Manning’s coeffcient was installed at the middle of the stream. Given that the total flow rate in the stream stays the same, would the water depth in the stream change as a result of the divider? If so, would it increase or decrease? Would the stream velocity change? If so, would it increase or decrease? You may assume the thickness of the divider to be negligible.
A) what is the number of drop of the flownet? B) What is the flow of water in the unit of cm^2/min? C) What is the water pressure, u, at point A? (Assume the water unit is 10 kN/m^3) D) What is the total head at point B/ E) What is the water pressure at point B? (Assume the water unit is 10 kN/m^3)
Determine the following: If w1=5 kN/m and W2 = 7 kN/m, Est = 210 GPa, b = 50 mm and h = 150 mm.
If the water surface elevation in reservoir B is 110 m, what must be the water surface elevation in reservoir A if a flow of 0.03 m3s is to occur in the cast-iron pipe? Use f = 0.021 for all pipes. Draw the HGL and the EGL, including changes in slope due to head loss. Neglect minor losses.
What is the pressure head at point 5 for the follwoing flow net. See below. a. 3.13 b. 3.33 c. 3.53 d. 3.73
Suppose that the rectangular channel of Fig. P10.120 ismade of riveted steel and carries a flow of 8 m3/s on athe slope of 0.15°. If the V-notch weir has α =30° and Y =50 cm, estimate, form gradually varied theory, the waterdepth 100 m upstream.
Determine the critical depth for a rectangular smooth concrete flume (n=0.013) 4.5m wide which is to carry 4.5 m3/s per meter width of channel. Unit of answer: meter No. of decimal places: 3
The intake in Fig. 3.1 has cross-sectional area of 0.74 m2 and water flow at 0.40 m/s. At theoutlet, distance D = 180 m below the intake, the cross-sectional area is smaller than at theintake and the water flows out at 9.5 m/s into equipment. What is the pressure differencebetween inlet and outlet?(10
Two reservoirs are connected by a pipeline consisting of pipe 1, pipe 2, pipe 3connected in series with length of 170 m, 300 m, 210 m respectively. Thedifferent in water surface levels in two reservoirs is 12 m. The friction coefficientfor pipe 1, pipe 2 and pipe 3 are 0.0052, 0.005 and 0.0048 respectively. Based onTable 2 and the setting given, determine the flowrate of the flow if the entranceloss coefficient is 0.25 considering :(i) minor losses; and(ii) neglecting minor losses pipe 1 =230(mm) Pipe 2 =330(mm) Pipe 3 = 430(mm)