Homework - Flow Nets
Consider the following cross section:
Water flows from the left to the right through the silty soil (tan color). The dual sheetpiles penetrate halfway through the silt and are filled with a relatively impermeable material. The objective of this assignment is to find a solution to the seepage through the silt using the flow net method. We will then calculate the flow rate through the silt and calculate pore pressures at selected locations.
Click here: dual_sheetpile_flow_net.pptx to download a powerpoint file containing graphics and instructions. Follow the instructions included on the slides.
Submission
Show your flow net and your calculations on the powerpoint slides. You can add extra slides if you need to. Show as much of your work as you can. Upload your Powerpoint file via Learning Suite.
Grading Rubric
Total: 30 points
| Criteria | Points |
|---|---|
| Flow net quality - flow lines properly drawn | 8 |
| Flow net quality - equipotential lines properly drawn | 8 |
| Flow lines and equipotential lines meet at right angles | 4 |
| Flow rate calculation | 5 |
| Pore pressure calculations at selected locations | 3 |
| Documentation and presentation | 2 |