Sampling Research Paper Example | Topics and Well Written Essays - 3250 words

Sampling - Research Paper Example8 - 4 hunky-dory capture4 - 20.00Very Coarse vertebral column2 - 10.42Coarse mainstay1.0 - 0.512.13 specialty gritrock0.5 - 0.2563.30Fine Sand0.25 - 0.12521.73Very Fine Sand0.125 - 0.0632.43Slit/Clay strain 3 has GI cheer of 1.8 and the figure for total pores space is 36.8 % approximately.Low GI = trusty DrainageDistribution of subdivision size and their categoryCategoryDiameter (mm)% retainedSt nonpareils8Coarse Gravel8 - 4Fine Gravel4 - 20.00Very Coarse Sand2 - 10.30Coarse Sand1.0 - 0.56.22Medium Sand0.5 - 0.2584.22Fine Sand0.25 - 0.1259.20Very Fine Sand0.125 - 0.0630.06Slit/Clay try out 4 has GI determine is 2.67 and the figure for total pores space is approximately 36.5. %.Low GI = Good DrainageDistribution of Particle size and their categoryCategoryDiameter (mm)% retainedStones8Coarse Gravel8 - 4Fine Gravel4 - 20.00Very Coarse Sand2 - 10.42Coarse Sand1.0 - 0.51.18Medium Sand0.5 - 0.2545.23Fine Sand0.25 - 0.12551.36Very Fine Sand0.125 - 0. 0631.80Slit/ClayTable 6SIEVE APERTURE (mm) try 1 Sample 2Sample 3 Sample 4 ExampleD901.100.550.450.41.1D100.300.190.250.150.35D500.600.350.30.250.59D200.400.240.250.180.403.672.891.82.673.12Porosity %3636.436.836.535.5Conclusion1. Percent Retained Sample 1 has a maximal percentage retention value of 58.04 under 0.5mm sieve aperture. Sample 2 has a maximum percentage retention value of 63.30 under 0.25mm sieve aperture. Sample 3 has a maximum percentage retention value of 84.22 under 0.25mm sieve aperture. Lastly, Sample 4 has a maximum percentage retention value of 51.36 under 0.125mm sieve aperture. The distribution of the sieve... Sample 1 has the net value of percentage passage under 0.25 to1mm sieve aperture. However, from out of the four warnings when in 0.125mm, sample 3 got the lowest value of 0.06. It is also notable that under 0.25mm sieve aperture, sample 4 has still high value of percentage passing with a value of 53.17.Sample 1 contains 58.04 % of coarse sand, 13.47% of Very coarse sand, and 24.41% of Medium Sand. Sample 2 contains 63.30 % of Medium Sand, 12.13% of Coarse Sand and 21.73% of Fine Sand. Sample 3 in near all of the samples were Medium Sand with percent retained value of 84.22%. Lastly, Sample 4 is a combine of Medium Sand, 45.23%, and Fine Sand, 51.36%.Based from the D10 values, Sample 1 has 0.30, sample 2 has 0.19, sample 3 has 0.25, and lastly, sample 4 has 0.15. All of the samples are in fine sand except for sample 1 which is class as medium sand. This means that sample 1 has the higher hydraulic conductivity which means that thither is more open area for the flow of water.It has been found out that the values of the Porosity % of the four samples were to a fault close to each other as evidenced by the value of 36, 36.4, 36.8, and 36.5. It is notable that sample one has the lowest value of porosity which means that it has very small space for the water to pass through.