Write the Rouse's equation for distribution of Suspended sediment in the vertical of a channel and label all the terms. In a wide alluvial channel having suspended sediment load, the depth of flow is 2.8 m. If a suspended load sampler indicated concentration of 700 ppm at a point 30 cm below water surface, estimate the concentration at a point 10 cm above the bed in the same Verfical. The exponent in Rouse's equation can be assumedsas 0.4. CS Scanned with

A cylindrical sediment core sample with the dimensions: diameter = 10[cm] and length= 30[cm] is placed in a Darcy experimental setup (see figure below) and fully re-saturated. At steady state the following information was recorded: hydraulic heads h₁ = 15.6[cm] and h₂9.3[cm], flow Q = 2[ml/min]. cross-sectional area, A sand Datum: 0 Please calculate the following and provide answers with three significant figures: a) Hydraulic conductivity (K) in the unit m/day. K = [m/day] b) Intrinsic permeability (k) assuming that the fluid used in the experiment is pure water at 25°C Report result using scientific notation and in the unit of m². k= c) Average linear pore water velocity (u) in m/s. Assume that the effective porosity (n) is half the total porosity of 0.3. Report the result in the unit m/d [m/d] UL = c

Find the total amount of suspended sediment per unit width of a river according to the velocity profile and suspended sediment concentration given in the following table. Depth (m) 0.05 0.5 1.0 1.5 2.0 2.2 1.53 1.73 1.41 0.71 Velocity (m/s) Concentration(m³/10ʻm³) 1.21 0.31 111 113 211 313 411 611

Given: Permeability, k = 40 x 104 cm/s Saturated unit weight of the soil = 20 kN/m³ Other information shown in the Figure E3-3 Determine the following: (a) Quantity of Discharge (b) Total vertical stress at Points B and D (c) Pore-water pressure at Points B and D (d) Effective vertical stress at points B and D 20.0 m 6.5 m 5.0 m 10.5 m Water YAY Concrete Impervious Figure E3-3 1.0 m VAYAYAY 5.0 m