5.27 The dam shown in Figure is located on the anisotropic soil. The coefficients of permeability in thex and z directions are 5 107 and 1.8*10 m/s, respectively. Determine the quantity of seepage under the dam. Di Ans.: Nr = 3.25, Na = 12, q = 1.1 10“ m/sec/m 15.00 m 1.00 m 3.00 m 8.00 m 33.00 m 8.00 m 1.5

5.27 The dam shown in Figure is located on the anisotropic soil. The coefficients of permeability in thex and z directions are 5 107 and 1.8*10 m/s, respectively. Determine the quantity of seepage under the dam. Di Ans.: Nr = 3.25, Na = 12, q = 1.1 10“ m/sec/m 15.00 m 1.00 m 3.00 m 8.00 m 33.00 m 8.00 m 1.5

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter10: Shear Strength Of Soil

Section: Chapter Questions

Problem 10.24CTP

See similar textbooks

Similar questions

An oil tank is to be sited on a soft alluvial deposit of clay. Below the soft clay is athick layer of stiff clay. It was decided that a circular embankment, 10 m diameter,with wick drains inserted into the soft clay would be constructed to preconsolidateit. The height of the embankment is 6 m and the unit weight of the soil comprisingthe embankment is 18 kN/m3. The following data are available: thickness of softclay = 7 m, ks = 1 × 10−10 m/s and Ch = 0.6 m2/yr. The desired degree ofconsolidation is 90% in 12 months. Determine the spacing of a square grid of thewick drains. Assume wick drain of size 100 mm × 3 mm and qw = 0.1 × 10−6 m3/s.The flow point distance is 4 m. Assume a half-closed system.
Example:- check the stability of shown gravity dam if you knew that there is an effect of earth quake with k, = 0.1, ku = 0.12 The vertical acceleration is downward and the horizontal is toward reservoir = 0.75,Yw = 1 (Ton/m ), Ycon. = 2.4 (Ton/m^3) Ysubmerged silt= 1.36 (Ton/m') Y silty water1.925 (Ton/m') Wind velocity = 120 (km/hr) With straight length of water. expanse = 35 km , ka=0.3, all kinds of combination
Find the seepage velocity through soil 1 if the average velocity is 0.0073 meters per second. Use 3 decimal places. H1 = 1.25 m n1 = 32%H2 = 2.51 m n2 = 22% H3 = 2.51 m n3 = 28%
Question: How did you get 25400 on the numerator when solving for S(Potential maximum retention )?
A permeability test was carried out from a well that sunk through a surfacelayer of loose sand. Figure below shows the arrangement of pumping wells, togetherwith relevant dimensions. Initially, the piezometric surface (ground water table) waslocated at a depth of 2.5m. When steady state was achieved at a pumping rate 38.5 m^3/hr, the following drawdowns were observed. Pumping well, d0 = 3.64mObservation well, d1=0.96mObservation well, d2 = 0.48m Calculate the coefficient of permeability of the sand in m/hr
Example:- check the stability of shown gravity dam if you knew that there is an effect of earth quake with k, = 0.1, ku = 0.12 The vertical acceleration is downward and the horizontal is toward reservoir = 0.75,Yw = 1 (Ton/m ), Ycon. = 2.4 (Ton/m^3) Ysubmerged silt= 1.36 (Ton/m') Y silty water1.925 (Ton/m') Wind velocity = 120 (km/hr) With straight length of water. expanse = 35 km , ka=0.3,
The Froude number of a subcritical stream at the end of a hydraulic jump in a horizontal rectangular channel is 0.22 The sequent-depth ratio of this jump is. （a）11.25 (b）15.25 (c）8.35 (d) 6.50
Answer the following questions!a. What is the definition of Archie's Equation?b. What is Archie's Law of Saturation Equation?
A concrete dam retains water to a height of 9 m. It has rows of sheet piling at both heeland toe which extend half way down to an impervious stratum. From a flow net sketchedon a transformed section, it is found that there are four flow channels and sixteen headdrops. The average horizontal and vertical permeabilities of the soil are 6 × 10^–3 mm/sand 2 × 10^–3 mm/s, respectively. What is the seepage in cubic meter per day, if the lengthof the dam is 150 meters?
1.A rectangular canal, 6.54m wide and 1.54m deep lined with smooth stone (n=0.013) has a hydraulic slope of 0.001. Channel is laid 5m long. What savings in earth excavation (m3) Choices: 0.71 7.11 1.71 11.7 and lining (m2) were introduced using the most efficient rectangular section but adhering to the same discharge and slope? Choices: 2.99 1.99 3.99 4.99 Please we need it ASAP and please base your answer on the given choices thank you
With an observation well situated is 69.7 ft away from the pumping well (which is pumping at the rate of 305 gal/min). The aquifer is confined, and the depth has been measured from well logs and is 150 ft. please show using this data how to calculate transmissivity (T), the hydraulic conductivity (K) and Storativity (S) for the aquifer. Thank You s (m) t (sec) 20.7 4074.3 30.76 6054.6 46.3 9054.6 67.33 13254.6 107.26 21114 152.67 30054 209.37 41274 305.38 60114 451.68 88914 671.44 132174 946.07 186234 1321.9 260214
How can we calculate dry adiabatic lapse rate (DALE)?