3 (a) Briefly give the theory of distribution and transporation of suspended material and derive the formula connecting the concentration of sediment and settling velocity under equilib- rium conditions. (b) Explain how sedimentation in a reservoir can be controlled. (Hint: for Q 3 (a) supplementary reading)

3 (a) Briefly give the theory of distribution and transporation of suspended material and derive the formula connecting the concentration of sediment and settling velocity under equilib- rium conditions. (b) Explain how sedimentation in a reservoir can be controlled. (Hint: for Q 3 (a) supplementary reading)

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 falling head hydraulic conductivity test is performed on a sample of soil. The standpipe having a diameter 0.35 cm is observed and it takes 80 seconds for the water to drop by 70 cm from an initial hydraulic head of 90 cm. The sample has a length of 22 cm, and a diameter of 5 cm. Compute the rate of flow of water in the soil (in cm/s).
3. Figure below shows layers of soil in a tube that is 100mm x 100mm in cross section. Water is supplied at a constant head difference of 400 mm across the sample. The hydraulic conductivities of the soils in the direction of flow through them are as follows. k (cm/sec) 1X10-2 Porosity, n (%) 25 Soil A В ЗX10-3 32 4.9X10-4 22
Problem G: For Problem 27 to 28. In a constant head permeability test the following are given L= 250 mm and A=105 cm?. If the value of k = 0.014 cm/secand flow rate of 120 cm3/min which is to be maintained. 27) What is the head difference, h in the specimen? b) 34.341 cm 28) Determine the discharge velocity in cm/sec? b) 0.109 a)34.136 cm c) 33.901 cm d) 34.014 cm a) 0.0189 c) 1.019X102 d) 0.019
6 decimal places for the solution
Soil mechanics
(e) A soil profile consists of a clay layer between layers of sand, the water table being in theupper sand layer. Before the construction of a raft foundation for a large reservoir, piezometers were placed in the saturated clay layer. The whole process of filling the reservoir may be approximated to applying rapidly a single pressure increment of 200 kPa uniformly throughout the clay layer. One year after filling the reservoir, the piezometers indicated a distribution of excess porewater pressure as indicated in Figure Q-e. Estimate the average degree of consolidation at this time.
7.7 In a constant-head permeability test, the length of the specimen is 200 mm and the cross sectional area is 78.5 cm². If k = 2.1 x 10-2 cm/sec, and a rate of flow of 130 cm³/min has to be maintained during the test, what should be the head difference across the specimen?
Q. Solve this seepage problem.
Refer to the cross section of the earth dam shown in the figure. Calculate the rate of seepage through the dam (q in m^3 / min / m) using L. Casagrande’s method
772 A settling tank in a water treatment plant is designed for a surface overflow rate of 30 day m Assume specific gravity of sediment particles = 2.65, density of water (r) = 1000 kg/m³, dynamic viscosity of water (m) = 0.001 N.s/m², and Stokes' law is valid. The approximate minimum size of particles that would be completely removed is: