1. A trapezoidal channel (b = 3-m, and angle = 30° carries a water discharge of 10 m³/s to a depth of 1.5-m under uniform flow conditions. The longitudinal slope of the channel bed is 0.001. Compute the shear stress in N/m² on the boundary. Also compute the Manning's n value.

1. A trapezoidal channel (b = 3-m, and angle = 30° carries a water discharge of 10 m³/s to a depth of 1.5-m under uniform flow conditions. The longitudinal slope of the channel bed is 0.001. Compute the shear stress in N/m² on the boundary. Also compute the Manning's n value.

Principles of Foundation Engineering (MindTap Course List)

8th Edition

ISBN:9781305081550

Author:Braja M. Das

Publisher:Braja M. Das

Chapter15: Braced Cuts

Section: Chapter Questions

Problem 15.5P

See similar textbooks

Related questions

Q: Pr Plot mon system. Find the moment of inertia of the shaded area about the horizontal and vertical…

Q: A 100 m tape weighing 30 N is suspended between the two ends under a standard pull of 180 N. The…

A: Given: A 100 m tape weighing 30 N. The tape is suspended between the two ends under a standard pull…

Q: An offset is laid out 5° from its true direction on the field. Find the resulting displacement of…

A: Given that :- An offset is laid out 5° from its true direction on the field length of offset (L)= 20…

Q: Q.2.b An 1134 Kg passenger vehicle with a frontal cross-sectional area of 2.78 m² straight and level…

Q: 5.10 An 18-ft- (5.4-m-) span simply supported beam carries a uniform dead load of 4 K/ft (60 kN/m)…

Q: Q.3 (a) A 30 cm × 15 cm venturimeter is provided in a vertical pipe line carrying oil of specific…

A: Given data Coefficient of discharge (Cd) = 0.98 Specific gravity of mercury (Sm) = 13.6 Specific…

Q: What additional possibilities are there for confirming the truthfulness of the data while it is…

A: It is necessary to confirm truthfulness of data to ensure the accuracy and reliability of data…

Q: A 1,100-N uniform boom at p = 67.0° to the horizontal is supported by a cable at an angle = 23.0° to…

A: Given, M = 1100 N ϕ = 67o θ = 23o W = 1750 N

Q: محاضرة ( 5 ) 5) TRACEIS JABL Q.5: Design Hourly. vamme in a (2- lane) urbon radial rood. The road ha…

Q: 2. Solve for the best choice in terms of utility U=A-0.05X1 -0.02X2 Mode A X2 Car -0.6 30 Jeep -0.3…

A: Given data: Equation for Utility,U=A-0.05X1-0.02X2 and table for Mode Mode A X1 X2 Car -0.6 50…

Q: SITUATION II: A boom supports a 100-N load as shown in the figure. 4. 5. 6. 200 N 10 m 10 m What is…

A: Given To find The value of angle θ The value of angle α The value of axial force in beam

Q: Select a standard threaded round rod to support a factored tensile load of 72 kips (service tensile…

A: Given: Pu = 72 kips, A36 steel

Q: 1- A (completely closed) cylindrical shape tank, made of galvanized plate-steel of height 2.75 m and…

A: Given: Material: Galvanized plate steel Cylinder shape tank dimension: Height, h1 = 2.75 m Diameter,…

Q: A 2-hour unit hydrograph can be approximated as trapezium as shown in figure. The UH refers to…

A: Given- 2 hr unit hydrograph- Catchment area=?

Q: For what potential pitfalls may a public safety infrastructure development project be responsible?

A: There can be many potential pitfalls for which public safety infrastructure development project…

Q: The rigid beam hidden in the figure is fixed at the top by two posts (dext = 50mm), one in AISI 4340…

Q: Is there a preferred approach to retrieving crash records from the simulator?

A: The process of retrieving crash records from a simulator is an important aspect of accident…

Q: The normal annual rainfall at stations A, B and C are 170.6, 180.3 and 165.3 cm respectively. 1993,…

A: Given: The number of stations n=3. The normal annual rainfall at station A is NA=170.6 cm. The…

Q: Q.5 (a) The following forebearings and backbearings were observed in traversing with a compass. Line…

Q: A local arterial has an average flow of 1500 vph. At 8:20 AM, a school bus stopped at a local stop…

A: Given data: Average flow, q=1500 Vph Average spacing=8 meters Traffic capacity, qm=1800 Vph Using…

Q: 3. Water is being pumped at 2.5ft3/s. The head loss between points 1 and 2 is 9ft and the power…

A: Given data: Flow of water pumped by the pump: Q=2.5 ft3/s Head loss between point 1 and 2 = hL=9 ft.…

Q: Suppose there are three rivers (River A, River B, and River C) that have the same characteristics…

A: Given, River A, B and C have same characteristics

Q: Determine the moment of the forces acting on the structure about point A. ´HIS IS AN EXAM. DO 90N…

A: In this question, Two forces of 90 KN and 20 KN are acting on the structure. 90 KN acts at 50 degree…

Q: Q5 A floor system shown in the following figure carries a load of 8 kN/m². There are columns at A,…

A: NOTE: "Since you have posted multiple questions, we will provide the solution only to the first…

Q: Why is it important for civil engineers to strive to comply with the principles of sustainable…

A: It is important for civil engineers to strive to comply with the principles of sustainable…

Q: {In Indian standard} light compaction test, the bulk unit weight of soil sample was found to be 18…

Q: 4 Solid waste from a park is to be collected in large containers. It is estimated that the average…

Q: Q-If the spacing between stadia hair and horizontal crosshair in the diaphragm of a tachometer is…

Q: e dependable flow of a river is 3 m³/s and the water duties at the system and farm levels are 2.5…

A: Given data, Dependable flow = 3 m³/s Duty at system = 2.5 lps/Ha Duty at farm level = 1.5 lps/Ha

Q: 4) Find the discharge of the rectangular, sharp-crested, two-stage weir show below. Assume P = 3ft…

Q: The lengths of the sides (in feet) of a five-sided closed polygon traverse are as follows:…

A: given : to find : A. departure of lines B. latitude of lines C. linear misclosure

Q: For an azimuth DE = 83° 58'06" and angles to the right, compute the bearing of FG if angle DEF =…

Q: Question 1 A traffic study at location A gave the following data in Table Q1. Table Q1: Speed and…

A: Given, Speed vs Density data

Q: Flow rate: 1.5 m3/s Pollution: pesticide permethrin Lake size: 100m x100m x 2.5m Steady state…

Q: A. Determine the terminal velocity (maximum attainable free fall velocity) by iteration of equation…

A: Answer For first iteration, let us first write down the titles of given or known values as shown…

Q: 3.19 The resultant force of a concurrent force system is shown. Determine the magnitude of the two…

Q: Suppose there are three rivers (River A, River B, and River C) that have the same characteristics…

A: Given: Critical point for river A = 20 km Critical point for river B = 22 km Critical point for…

Q: Time (hrs) 0 12 24 36 48 60 72 84 96 108 Inflow Discharge (m3/hr) a. Draw the Inflow and Outflow…

A: To plot the inflow and outflow hydrograph. And to identify the peak discharge rate in inflow and…

Q: An identified source of irrigation water has ion concentrations of Na+, Catt and ++ Mg as 20, 10 and…

Q: A rigid retaining wall of 6m height has a saturated backfill of soft clay soil. What is the critical…

Q: Problem 2 A rigid bar, hinged at one end, is supported by two identical springs as shown in Fig.…

Q: A uniformly distributed load of 5 kN/m covers left half of the span of three- hinged parabolic arch,…

Q: 75 KN/M 75KN/m A W 3.5m B 3.5m 35KN/m с 35 KN/M T om am 2m

A: In triangle BDO, BD=32+3.52=4.61 m sinθ=3/24.61/2=0.651 cosθ=3.5/24.61/2=0.759

Q: Problem 3: A W 460 x 147 is simply supported on a span of 8 m is laterally supported only at its…

A: Given: W 460*147, Span = 8m, Fy = 345 MPa

Q: Station BM20 TP1 TP2 TP3 BM20 BS (m) 26.921 26.733 26.615 26.648 HI (m) FS (m) 27.235 27.018 26.581…

Q: R.L. of point 'A' is 50 m and R.L. of point 'B' is 46.655 m. The distance between AB is 150 m. The…

A: Given :- R.L. of point 'A' = 50 m R.L. of point 'B' = 46.655 m. The distance between AB = 150 m. To…

Q: Question In an old map, a line AB was drawn to a magnetic bearing of 5°30', the magnetic declination…

A: Given data- Magnetic bearing initially = 5o30' Initial magnetic declination = 1o East, Present…

Q: 20 KA 40 k E 60 k 2.22 k Problem 7.58 H 30 ft B I 1 30 k 21 2₁ C G J ft 30 ft 30 ft D K 20 ft ← 20…

A: To determine the forces in each member. The given truss is statically determinate. Using the…

Q: féz 4000 psi, NWC Grade 60 steel, &#8 Mn = ?

A: Answer We know that Nominal Moment capacity of singly reinforced beam is given by Mn = As*Fy*z As =…

Q: Problem 1: Determine the flexural strength of a W 410 x 67 beam with a simple span of 8 m and Fy =…

Concept explainers

Unit Conversion

Standard units are also called SI units. SI units are used for measuring a physical quantity satisfying certain conditions. There are two types of units: fundamental units and derived units. Fundamental units are physical quantities that are independent, that is, they do not depend on other quantities like mass, length, or time. There are plenty of quantities in our lives which need to be measured and compared. Measuring is the comparison of a particular physical quantity with its reference value. A unit is a measure of a fixed physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with.

Question

100%

1. A trapezoidal channel (b= 3-m, and angle = 30° carries a water discharge of 10
m/s to a depth of 1.5-m under uniform flow conditions. The longitudinal slope of
the channel bed is 0.001. Compute the shear stress in N/m² on the boundary. Also
compute the Manning's n value.

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Step by step

Solved in 4 steps with 3 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

1. A trapezoidal channel has a bottom width of 6 m and side slopes of 2H:1V. If thedepth of flow is 1.2 m and the flow is 20.40 m3/s,a. Compute the specific energy b. Compute the slope of channel if n = 0.014 c. Compute the average shearing stress at the boundary
A concrete gravity dam has the following data: Maximum water level = 300.00 m Bed level = 220.00 m R.L top of dam = 304.00 m %3D The d/s slope of 0.67:1 starts at RL of 295.00 m U/s face is vertical. Center line of the drainage gallery = 8.0 m from u/s face. Consider only weight of dam, water pressure and uplift pressure. Calculate only the normal stresses at the toe and heel of the dam, assuming 100% uplift pressure at the h eel and 50% at the gallery and zero at the toe.
A trapezoidal channel is discharging 20.40 m^3/sec at a depth of 1.2 m and a base width of 6 m. The side slope is 2 horizontal to 1 vertical. n = 0.014. Compute the slope of the energy grade line. a. 0.00094 b. 0.00015 c. 0.00021 d. 0.00124 compute the specific energy. a. 1.10 m b. 1.84 m c. 1.62 m d. 1.41 m compute the average shearing stress on the boundary surface. a. 3.50 Pa b. 8.18 Pa c. 7.11 Pa d. 5.04 Pa
A canal of trapezoidal section has bed width of 8 m and bed slope of 1 in 4000. If the depth of flow is 2.4 m and side slopes of the channel are 1 horizontal to 3 vertical, determine the average flow velocity and the discharge carried by the channel. Also compute the average shear stress at the channel boundary. Take value of Chezy’s Constant = 50
Please show FBD and be detailed in showing solution. Figure shows a semi-conical buttress. Calculate the total hydrostatic force acting on the surface of this semi-conical buttress.
A concrete gravity dam with a trapezoidal section is holding water as shown in the figure. A distance of 15 meters from the toe, a drain is located. The drain has a pressure due to uplift of zero and increasing uniformly to full hydrostatic at the heel. Upstream face 1H:5V, while downstream face is inclined 1H:2V. Which of the ff nearly gives the maximum foundation pressure on the base of the dam in kilopascal ? Assume 23.54 kN/m3 for the unit weight of concrete. a. 3114 b. 1095 c. 4115 d. 964 e. 680
A 4-m high embankment is to be constructed as shown in the Fig. 3 below. If the unit weight of soil used in the embankment is 19.0 kN/m3, calculate the vertical stress due to the embankment loading at points P1, P2 and P3. Use the Straight Line Law of Osterberg, 1957.
A damn having a triangular section has a vertical face 24 m high and base 12 m wide. Use sg=2.4 a. determine the height of water that could rise on the vertical side of the dam so that the maximum intensity of pressure at the toe is twice the average pressure at the base. Neglect hydrostatic uplift. b. What is the shearing stress at the base?
A masonry dam has a coefficient of permeability in the vertical and horizontal directions of Kz=4m/day and Kx=5m/day, respectively. The difference in the head is 18m and the distance between the base of the dam and the downstream water surface is 18m. Assume z=35m and width of dam = 40m. a. Determine the seepage flow (m3/day) b Determine the uplift pressure (kpa) at A. c. Determine the uplift force (x10^3 kN) acting in the dam. Assume that the uplift pressure under the dam varies uniformly.
For the above soil profile, determine the shear strength at Point B.
A retaining wall 6 m high supports cohesionless soil having a dry density of 1600 kg/m³, angle of resistance 32 and void ratio of 0.68. The surface of the soil is horizontal and level with the top of the wall. Neglecting wall friction and using Rankine’s formula for active pressure of a cohesionless soil. 1. Determine the nearest value of the total earth thrust on the wall in KN per lineal meter if the soil is dry. a. 73.1 b. 86.7 c. 62.4 d. 98.1 2. Find the nearest value of the thrust on the wall in KN per lineal meter if owing to inadequate drainage, it is waterlogged to a level of 3.5 m below the surface. a. 112 b. 171 c. 147 d. 153 3. Find at what height above the base of the wall the thrust acts during the waterlogged condition. a. 2.21 m b. 2.00 m c. 1.74 m d. 1.42 m
The plan of a flexible circular loaded area is resisting the uniformly distributed load(q), 835 kN/m2 with the radius of 5.7 m. Illustrate and calculate the increase in thevertical stress (Δσ) at a depth of z = 7.2 m below point A which is immediately belowthe center.