Structural Analysis
6th Edition
ISBN: 9781337630931
Author: KASSIMALI, Aslam.
Publisher: Cengage,
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- Problem (2) The following data are for a variable head permeability test: Area of soil specimen=1200mm? Length of the soil specimen = 150mm Area of the standpipe = 1.3cm² At time t=0, head difference = 750mm At time t=2min, head difference = 500mm 2 %3D a) Find the hydraulic conductivity of the soil in cm/min.arrow_forward1. A series of Atterberg limit tests was performed on samples of a gray-brown silty clay. The table below summarizes the results of four liquid limit tests. Using this data, Trial Number Number of blows Weight of wet sample + container (g) Weight of dry sample + container (g) Weight of container (g) 15.61 16.82 16.34 a. Determine the flow curve for the soil (graph and show the equation of the best fit line) b. Determine the flow index for the soil 1 23 2 36 3 26 15.12 4 c. Calculate the liquid limit d. Calculate the plasticity index Plastic limit tests show an average of 38.5%. 23.50 26.94 26.86 26.27 21 19.89 22.10 22.59 21.96arrow_forwardA sample of sand is subjected to a constant head permeability test. The sample diameter is 60 mm and its length is 130 mm. Under an applied head of 60 cm, 119 cm³ of water flows through the sample in 5 minutes. Determine (a) the coefficient of permeability, and (b) the discharge velocity.arrow_forward
- For each of the three cases shown in Figure 3 determine: a). the pressure head, elevation head, total head, and cumulative head loss at the entrance, exit and point A of the soil sample. For each case, set the datum at the tail water elevation. b). the discharge velocity and the seepage velocity if the soil's permeability coefficient is 0.10 cm/s and the porosity is 40%. POTTAWA c). the discharge velocity and the seepage velocity if the soil's permeability coefficient is 0.001 cm/s and the void ratio is 0.600. BAINA LE DROIT 3 m 4m + 2m A. Case I ez ilise ROTÉGÉ PAR 3 m 1m 4m est cadre A. Case II sirez 1 m e mate ificati Figure 2 dood 3 m 5 m TED MATERIA Case III urse are rected by cop not harmission to up nox clarification, ple 1 marrow_forwardProblem: For a constant laboratory permeability test on a fine sand, the following data are given: Length of specimen - 16 cm Diameter of specimen - 9.6 cm Constant head difference - 50 cm Volume of water collected in 4 min - 420 cc Void ratio of the soil specimen - 0.55 A.) Determine the hydraulic conductivity of the soil in cm/sec B.) Determine the discharge velocity in cm/sec C.) Determine seepage velocity in cm/sec Problem: For a falling head permeability test, the following are given: Length of Soil Specimen - 200mm Area of Soil Specimen - 1000mm^2 Area of Stand pipe - 40mm^2 Head Difference at time t = 0 min - 500mm Head Difference at time t = 3 min - 300mm A.) Compute hydraulic conductivity of the soil in cm/sec B.) Compute the seepage velocity if the porosity is 0.25 in cm/sec C.) What is the head difference at time t = 100 sec in mmarrow_forward
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