A wide, shallow sand-bed channel has a slope of 0.00105 (assume smooth channel banks). The average grain size = 0.36 mm at isb = 40.2%. The flow depth of the channel is equal to 3.3 ft at flowrate and cross area of 5380 ft^3/s and 640 ft^2, respectively. Based on Einstein (1950) for total bed-load material transport model using size fraction, Find the following by choosing the correct answer of the following:

A wide, shallow sand-bed channel has a slope of 0.00105 (assume smooth channel banks). The average grain size = 0.36 mm at isb = 40.2%. The flow depth of the channel is equal to 3.3 ft at flowrate and cross area of 5380 ft^3/s and 640 ft^2, respectively. Based on Einstein (1950) for total bed-load material transport model using size fraction, Find the following by choosing the correct answer of the following:

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

Subject: Geotechnical Soil Mechanics Topic: Soil Compressibility
c) A river has the following hydraulic characteristics, Q = 475 m/s, width 70 m, depth 5.5 m, bed slope 3 x 104. The sediment has a typical diameter D50 = 0.02 m and mass density 2650 kg/m³. Estimate the bed-load transport, Qs using the Einstein-Brown approach.
An embankment for a highway 30 m wide and 1.5 m in compacted thickness is to be constructed from sandy soil trucked from a borrow pit. The water content of the sandy soil in a borrow pit is 15% and its void ratio is 0.69. The swell index is 1.2. The specification requires the embankment to be compacted to a dry unit weight of 18kN/m^3. Determine, for a 1-km length of embankment, the following;(d) Volume of the borrow pit material required considering swell. (e) The number of truckloads of sandy soil required for the construction. The full capacity of each truck is 22.2m3, and local government regulations require a maximum capacity of 90%. (f) The weight of dry soil in one truckload.
As indicated in the following figure, an incompressible silty sand fill 16.4 ft thick wasplaced on top of a 49.2 ft thick layer of soft and compressible silty clay. Underlying theclay is a layer of incompressible sandy gravel. The soil properties of the silty clay layer aregiven in the following figure. The ultimate settlement, Sult = 5.64 ft, from the primaryconsolidation of silty clay layer due to the weight of the silty sand fill is calculated. A) Find the time rate of settlement by showing the Time [year] vs. Settlement [ft] curve.Show sample calculation when percentage of consolidation, Uavg = 50% B) Compute and plot effective stress profile (σ’z vs. depth) at the Silty Clay layer in thefollowing timing:a. Before placing the fill layerb. right after placing the fill layerc. Ten years after placing the fill layerd. 40 years placing the fill layerShow sample (hand) calculation at a depth of 41 ft and the timing of 10 years after placingthe fill layer. can you show your work on…
A soil element is shown in figure. Determine: a. Maximum and Minimum Principal stress. b.Normal and shear stress on plane AB
Q.2 The soil profile shown in the figure below consists of a 6 m-thick sand layer underlain by saturated clay where the water table lies 2 m below the ground level. The entire soil mass is retained by a concrete retaining wall and is in the active state. Answer .the next 3 questions 1 m A 2 m Sand (o= 34°) Y = 17 kN/m; = 20 kN/m? 4 m B 1 m 2 m Clay (c'= 20 kPa, o'= 25°) C Ya = 19 kN/m
Note:Format should not be hand written.
G,+S,e , a) Starting from the basic phase definitions (see the Appendix) show that y = 1+e b) Using the expression above, determine the distribution of the total and effective vertical stress with depth for the soil profile shown. Plot these distributions for 0 60%, T, : 1.781 – 0.933 log(100 – U%) C,H - log 1+e, o, + Ao' C,H 1+e, S = - log
Q2. A soil profile consisting of three layers is shown in Figure 1 below. Unit weight of water (yw) = 9.81 kN/m³ Layer no. 1 2 3 ↑ H₁ H₂ Dry sand Sand Clay Rock Figure 1: Soil Profile Thickness H₁ = 1.5 m H₂ = 2.53 m H3 = 2.64 m Layer 1 Groundwater table Layer 2 Layer 3 Soil parameters Yd = 16.5 kN/m³, Ysat = 17.42 kN/m³ Ya = 16.5 kN/m³, Ysat = 18.55 kN/m³ Yd = 17.50 kN/m³, Ysat = 19.23 kN/m³ a) Calculate the values of o, u and o' at points A, B, C and D. b) Calculate the effective stress at C when water table drops by 2 m. c) Calculate the effective stress at C when water table rises by 1 m above layer 1 due to flooding.
Problem 4: Total stress, pore pressure and effective stress A soil profile is shown in the following figure. Calculate the total stress, pore water pressure and effective stress at points A, B, and C. 6m 13m B Dry sand Saturated sand Clay Dry sand Ydry 16.5 kN/m³ Groundwater table Saturated sand Ysat 19.25 kN/m³ =
Pls answer asap