Estimate the permeability of core sample were data obtained during a routine permeability test using fresh water as the liquid depicted below:- Flow rate 4 cc of water at upstream in 500 sec Pressure upstream side of the core 1.7 atm Pressure downstream side of core 1 atm Cross-sectional area of core 2 cm² Length of core 2 cm Viscosity of fresh water 1 cp "

Estimate the permeability of core sample were data obtained during a routine permeability test using fresh water as the liquid depicted below:- Flow rate 4 cc of water at upstream in 500 sec Pressure upstream side of the core 1.7 atm Pressure downstream side of core 1 atm Cross-sectional area of core 2 cm² Length of core 2 cm Viscosity of fresh water 1 cp "

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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3.8 Following CT scanning, data are available for a chalk core plug from the North Sea area. The core plug is scanned at equal distance for 9 different slices. The second column provides the CT numbers for a clean sample (denoted as air ref), whereas the third column provides the CT numbers for a 100% brine-saturated sample (denoted as water ref). CT number for pure water is 32 HU and -1000 HU for air. Calculate the porosities of each slice of this core plug. Slice No. 1 2 3 4 5 6 7 8 9 Air Ref, Hounsfield Units (HU) 2651 2664 2660 2670 2668 2675 2681 2677 2682 Water Ref., Hounsfield Units (HU) 2966 2984 2975 2987 2985 2984 2989 2986 2995
The following data is the result in performing the ASTM C128, Determine the Apparent Specific Gravity Mass of Pycnometer Mass of pycnometer filled with water 250.00 1,160.00 Mass of SSD sample 900.00 Mass specimen and water Mass of oven-dried sample of pycnometer with 1,724.00 895.00 A None of the above B) 2.66 C) 2.70 D) 2.68
A sample in a variable head permeameter is 8cm in diameter and 10 cm high. The permeability of the sample is estimated to be 10x 10^-4 cm/sec. If it is desired that the head in the stand pipe should fall from 24 cm to 12 cm in 3 min. Determine the size of standpipe which should be used.
A sample in a variable head permeameter is 8 cm in diameter and 10 cm high.The permeability of the sample is estimated to be 10 × 10^–4 cm/s. If it is desired that the headin the stand pipe should fall from 24 cm to 12 cm in 3 min., determine the size of the standpipe in cm which should be used. a.1.29 b.5.43 c.3.67 d.4.19
A column analysis of a flocculating suspension is shown below. The initial solids concentration is 200 mg/L. The resulting matrix is given in Table 3. Table 3: Concentrated solids measured (mg/L) for a flocculent settlement column test. Time of sampling (minutes) Depth (m) 0.5 1 1.5 2 2.5 3 (a). 30 135 181 202 215 218 227 60 85 123 149 U 167 177 189 80% 90 53 92 120 133 143 157 Calculate the removal fraction at each depth and time. 120 40 64 95 111 121 134 70% 150 31 54 71 (b). Based on the isoremoval flocculent sedimentation diagram given in Appendix 2, calculate the overall removal efficiency of a settling basin which is 3 meters deep with a detention time of 1 hour and 45 minutes. 1. 92 105 115 Scanned with AnyScanner O L 60% 2.5 50% 40% -20% 51 180 25 45 55 67 83 97 30% 10% S 1₂ 150 120 06 09 O 3 Time. min
PART II: A T TERBERG LIMITS PROBLEM A The following data shows the results of the Liquid limit and Plastic limit LIQUID LIMIT TEST TEST NO. 1.0 2.0 3.0 4.0 No. of Blows (N) Mass of Wet Soil + Mass of Container (g) Mass of Dry Soi1 + Mass of Container (g) 38.0 24.0 21.0 16.0 23.24 20.19 22.27 24.12 20.44 19.78 18.75 21.10 Mass of container (g) 12.74 13.24 13.06 13.27 PLASTIC LIMIT TEST TEST NO. 1.0 2.0 1. Determine the nearest No. of Blows (N) Mass of Wet Soil + Mass of Container (g) Mass of Dry Soil + Mass of Container (g) value of liquid limit (LL). 2. Determine the nearest value of plastic limit 24.52 22.84 21.42 21.59 13.07 13.18 (PL). 3. Determine the nearest value of plastic index NATURAL WATER CONTENT (PI) and its soil 1.0 2.0 description. 4. Determine the nearest value of liquid index, TEST NO. No. of Blows (N) 18.53 17.97 (LI) and its soil Mass of Wet Soil + Mass of Container (g) Mass of Dry Soil + Mass of Container (g) 15.54 15.56 description. 7.84 7.50
A falling-head permeability test was performedin a permeameter with an inside diam. of 6 cm.The inside diameter of the standpipe is 3 mm.The sample had a length of 12 cm. During aperiod of 8 min. the head of the sample was120 cm and decreased by 50 cm. Computethe coefficient of permeability of the samplein cm/sec.
3.) A SAMPLE IN A VARIABLE HEAD PERMEAMETER IS 8CM IN DIAMETERAND 100K HIGH. THE PERMEABILITY OF THE SAMPLE IS ESTIMATED TO BE 10X10 4 CM/S. IP IT IS DESIRED THAT THE HEAD IN THE STAND PIPE SHOULD FALL FROM 2,4cm To SRE OF THE SIZE OF THE STANDPIPE IN mm 12 cm IN 3min., DETERMINE THE
III. Using Atterberg's Plasticity Determination Method Determinethe following; a) Plot the Flow Curve and b) Determine the Flow Index c) Computethe Liquid Limit d) and if the Plastic Limit wa. uetermined as PL = 17.545 % what is the Plasticity Index ? Number of Blows Moisture Content,% 15 38.589 20 35.712 29 28.556 32 24.670
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Plastic Limit Test: Weight of wet soil + container = 22.12 g Weight of dry soil + container = 21.42 g Weight of container = 13.07 g Natural Water Content Test: Weight of wet soil + container = 17.53 g Weight of dry soil + container = 14.84 g Weight of container = 7.84 g a.) Compute the liquid limit. (Tip: Use normal scale) b.) Compute the plastic limit. c.) Compute the natural water content. d.) Compute the plasticity index. e.) Compute the liquidity index. d.) Compute the consistency index.
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