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6. (Bonus question) In the experimental setup shown in Figure 6, water flows through soils 1...
JE . For steady-state seepage shown in the Figure to the right, water levels are maintained...
JE . For steady-state seepage shown in the Figure to the right, water levels are maintained at the levels shown and water flows through the soil (shown in gray) from B to A. The cross-sectional area of the soil sample per- pendicular to flow is 2800 mm and soil permeability k is 0.05 cm/s. overflow 300 mm discharge a) What is the pressure head at point A? 280 mm 600 mm 600 mm b) What is the hydraulic gradient i...
Question 1 a) Hydraulic conductivity of soils is an important parameter for the design of engineering...
Question 1 a) Hydraulic conductivity of soils is an important parameter for the design of engineering structures (such as dams, etc.). Why? b) With the help of a fully labelled diagram, derive the expression for the hydraulic conductivity of soil based on the falling-head permeability test. c) The following data was recorded from a falling-head permeability test: Area of the soil specimen = 10 cm Length of the soil specimen = 22 cm Area of standpipe = 0.4 cm2 Head...
Question 12 Water is flowing downwards through a vertical sand column as shown in Figure 6....
Question 12 Water is flowing downwards through a vertical sand column as shown in Figure 6. The length of the column L 160 cm, the cross-sectional area A 220 cm2, the head difference Ah 130 cm (assume this head difference is constant). The sand in the column has a hydraulic conductivity k 25 m/d and the porosity n=0.32. Determine the steady state seepage velocity of soil. Page 5 of 14 Soil sample area A 220 cm Pemeability k 25 m/day...
QUUESTION1 Water flows through a pipe as shown in Figure 1. The losses in the pipe can be express...
QUUESTION1 Water flows through a pipe as shown in Figure 1. The losses in the pipe can be expressed as 0.025 V2 per meter length of pipe, where V is the velocity in the pipe. The length AB is 6 m and BC is 11 m, determine the discharge and the pressure at B 2m 3m 5m 20mm diameter Figure 1: Schematic of water flowing from a tank through the pipe.
QUUESTION1 Water flows through a pipe as shown in...
Question 1 Water flows through the round tube with 50mm diameter shown in the figure. You...
Question 1 Water flows through the round tube with 50mm diameter shown in the figure. You are given that k=1.2x105 m/s and kp=5.0x10 m/s, calculate the following: 130mm 200mm Datum a) The monometer head at position 1 b) The potential at position 1 c) If material Ais replaced by material B, so that the 330mm column of soil consists of material Bonly, calculate the flow rate.
50 m Impermeable Concrete dam 6 m 1 m 10 m PtA (at mid-point of layer...
50 m Impermeable Concrete dam 6 m 1 m 10 m PtA (at mid-point of layer and centre of base) DATUM Impermeable bedrock Figure 2: Concrete dam (not to scale) Figure 2 shows the cross-section through a long concrete dam in anisotropic soil. The horizontal and vertical permeability of the soil are: K 25 x 10-4 cm/sec and Ky 1 x 10-cm/sec.. (a) Calculate the transform parameter a. In your exam booklet, draw the transformed flow domain to scale and...
For Following Multiple Choice All Correct Answers Which Applied To Each Question. 1. The hydraulic head,...
For Following Multiple Choice All Correct Answers Which Applied To Each Question. 1. The hydraulic head, h, is equal to the sum of the: pressure, elevation, and velocity heads. fluid pressure and the elevation head. pressure head and elevation head. hydraulic conductivity and intrinsic permeability. 2. Henry Darcy (1865) measured the flow of water through sand-filled columns, and found that the total discharge, Q, through the column was: proportional to the column cross-sectional area, A. inversely proportional to the length,...
PROBLEM 2 = Water flows through a Venturi meter, as shown in Figure 1. The pressure...
PROBLEM 2 = Water flows through a Venturi meter, as shown in Figure 1. The pressure of the water in the pipe supports columns of water that differ in height by L = 25 cm. The atmospheric pressure is Patm 101.3 kPa, the specific volume of water is v = 0.001 mº kg-1, and the acceleration of gravity is g = 9.81 ms-2. Patm = 101,3 kPa 8 = 9.8 m/s? L = 250 mm Water v = 0.001 m?/kg...
Water flows in a pipe as shown in Figure Q3. At section 1, height to the...
Water flows in a pipe as shown in Figure Q3. At section 1, height to the centre line of pipe in relation to some datum is Zi (=3m). At section 2, the respective height is Z2 = 5m) as shown. The pipe diameters in section 1 and 2 are 500mm and 440mm respectively. Water velocity at section 1 is 5.6 m/s and the pressure is 45 kPa. Assuming ideal flow conditions and taking water density as 1000 kg/m. 1. Calculate...
Q.1. (12 marks) State whether the followings are True or False? (1) The angle of internal...
Q.1. (12 marks) State whether the followings are True or False? (1) The angle of internal friction can vary from 0 to 90' since it is an angle. (2) A degree of saturation of 40% implies that 40% of the total volume consists of water. (3) Void ratio cannot be > 1. (4) If the coefficient of permeability is 10 cm/sec, the soil is likely to be silty sand (5) In the triaxial test the horizontal plane is the major...
JE . For steady-state seepage shown in the Figure to the right, water levels are maintained at the levels shown and water flows through the soil (shown in gray) from B to A. The cross-sectional area of the soil sample per- pendicular to flow is 2800 mm and soil permeability k is 0.05 cm/s. overflow 300 mm discharge a) What is the pressure head at point A? 280 mm 600 mm 600 mm b) What is the hydraulic gradient i...
Question 12 Water is flowing downwards through a vertical sand column as shown in Figure 6. The length of the column L 160 cm, the cross-sectional area A 220 cm2, the head difference Ah 130 cm (assume this head difference is constant). The sand in the column has a hydraulic conductivity k 25 m/d and the porosity n=0.32. Determine the steady state seepage velocity of soil. Page 5 of 14 Soil sample area A 220 cm Pemeability k 25 m/day...
QUUESTION1 Water flows through a pipe as shown in Figure 1. The losses in the pipe can be expressed as 0.025 V2 per meter length of pipe, where V is the velocity in the pipe. The length AB is 6 m and BC is 11 m, determine the discharge and the pressure at B 2m 3m 5m 20mm diameter Figure 1: Schematic of water flowing from a tank through the pipe.
QUUESTION1 Water flows through a pipe as shown in...
Question 1 Water flows through the round tube with 50mm diameter shown in the figure. You are given that k=1.2x105 m/s and kp=5.0x10 m/s, calculate the following: 130mm 200mm Datum a) The monometer head at position 1 b) The potential at position 1 c) If material Ais replaced by material B, so that the 330mm column of soil consists of material Bonly, calculate the flow rate.
50 m Impermeable Concrete dam 6 m 1 m 10 m PtA (at mid-point of layer and centre of base) DATUM Impermeable bedrock Figure 2: Concrete dam (not to scale) Figure 2 shows the cross-section through a long concrete dam in anisotropic soil. The horizontal and vertical permeability of the soil are: K 25 x 10-4 cm/sec and Ky 1 x 10-cm/sec.. (a) Calculate the transform parameter a. In your exam booklet, draw the transformed flow domain to scale and...
PROBLEM 2 = Water flows through a Venturi meter, as shown in Figure 1. The pressure of the water in the pipe supports columns of water that differ in height by L = 25 cm. The atmospheric pressure is Patm 101.3 kPa, the specific volume of water is v = 0.001 mº kg-1, and the acceleration of gravity is g = 9.81 ms-2. Patm = 101,3 kPa 8 = 9.8 m/s? L = 250 mm Water v = 0.001 m?/kg...
Water flows in a pipe as shown in Figure Q3. At section 1, height to the centre line of pipe in relation to some datum is Zi (=3m). At section 2, the respective height is Z2 = 5m) as shown. The pipe diameters in section 1 and 2 are 500mm and 440mm respectively. Water velocity at section 1 is 5.6 m/s and the pressure is 45 kPa. Assuming ideal flow conditions and taking water density as 1000 kg/m. 1. Calculate...
Q.1. (12 marks) State whether the followings are True or False? (1) The angle of internal friction can vary from 0 to 90' since it is an angle. (2) A degree of saturation of 40% implies that 40% of the total volume consists of water. (3) Void ratio cannot be > 1. (4) If the coefficient of permeability is 10 cm/sec, the soil is likely to be silty sand (5) In the triaxial test the horizontal plane is the major...
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