Geology Lab Darcy Law And Hydraulic Conductivity

Geology Lab Darcy Law And Hydraulic Conductivity

 

 

Geology Lab Darcy Law And Hydraulic Conductivity

profiledasht.ja7You Can Place A Bid After Your Teacher Account Is ApprovedField: Earth Science – GeologyPosted: A Few Seconds AgoDue: 22/09/2017Budget:  $20Report Issuelab report Contains:
1) Introduction (brief description of lab and why the lab was conducted)
2) Theory and Purpose (state purpose and define terms and processes)
3) Methods (brief description of the method(s) used)
4) Results (add tables and figures, as available, brief description of data collected, observations, and any interpretations you can make based on the data)
5) Discussion (brief comparison of repeats or results from other groups, did the data make sense or meet
6) Conclusion

 

I attached all calculations results

 

The attached spreadsheet has some results from prior classes .  The calculation sheet has some sample calculations prepared for both falling head and constant head tests. You will need to edit that sheet, add your group and soil name, add your data, make the Q vs (Adh/dl) plot, calculate K for each experiment, and calculate the average for each test and for each soil.
Don’t worry about calculating the K at a different temperature. However, I would like you to look up the density and viscosity of water to use with your hydraulic conductivity measurements to calculate the intrinsic permeability of each soil.

Geology lab Darcy law and hydraulic conductivity2017 resultsConstant Head Experiment (cm/sec)Soil A Replicate 1 Replicate 2 Replicate 3Group 1 0.00252 0.00259 0.00257Group 3 0.00245 0.0024 0.00254Group 5 0.0032 0.00303 0.00398Soil B Replicate 1 Replicate 2 Replicate 3Group 2 0.00825 0.00813 0.00798Group 4 0.0057 0.0064 0.0056Group 6 0.00915 0.00871 0.00907Falling Head Experiment (cm/sec)Soil A Replicate 1 Replicate 2 Replicate 3Group 1 0.0028 0.00258 0.00207Group 3 0.00247 0.00256 0.00247Group 5 0.002125 0.00252 0.00269Soil B Replicate 1 Replicate 2 Replicate 3Group 2 0.00969 0.001 0.01762Group 4 0.0064 0.0065 0.0062Group 6 0.00657 0.00684 0.00749CalculationsConstant Head Sample ???Length (?l) 4.5 cmArea (A) 28.1 cm2Temp (°C) 25 K=(VL)/(Ath)Run ?h (cm) V (ml) t (s) Q (ml/s) A (?h/?l) (cm2) K (cm/s)1 11 93 600 0.155 77.825 0.002262 23.6 204 540 0.3777777778 166.97 0.002563 37.5 178 287 0.6202090592 265.3125 0.00265Ave KUsing Slope of regression K is 0.0023 cm/s 0.00249Falling Head Sample ???Length (?l) 4.5 cmArea (A) 28.1 cm2Temp (°C) 25 K=(L/t)Ln(ho/h)Run ?h (cm) V (ml) t (s) ho/h Ln(ho/h) K (cm/s)h0 1 33.52 30 105 180 1.1166666667 0.1103480572 0.002763 26.5 104 390 1.2641509434 0.2344007058 0.002704 23 104 619 1.4565217391 0.3760512229 0.00273Ave K0.00273Relationship of Discharge to Hydraulic Gradient
77.825 166.97 265.3125 0.155 0.377777777777778 0.620209059233449
A (?h/?l)
Q (ml/s)
2016 resultsConst FallingHead HeadGroup K (cm/s) K (cm/s)A 1 0.00141 0.00176A 2 0.0021 0.00141A 3 0.0023 0.0023B 4 0.0024 0.00239B 5 0.00175 0.00151B 6 0.00338 0.003782015 resultsConst FallingHead HeadGroup K (cm/s) K (cm/s)B 1 0.0021 0.002B 3 0.00176 0.0018B 5 0.0023 0.00304A 2 0.00194 0.00204A 4 0.00094 0.0011A 6 0.0043 0.0037