Internal erosion is a major contributor to failure of embankment dams. Failure can occur within…

Internal erosion is a major contributor to failure of embankment dams. Failure can occur

within the embankment, its foundations or at the interface between the embankment and

its foundation. Design considerations for internal erosion requires the provision of effective

filters, in addition to assessing the susceptibility of available construction material and natural foundation material to internal erosion. In this assessment, you will explore laboratory

assessment of internal erosion, the design of an effective filter zone and assess the susceptibility to suffusion in a laboratory setting. This will require your knowledge of seepage through

embankments and its foundations covered in previous coursework and assessments.



You are required to work independently and prepare a report that addresses all the questions

set out below. All work towards any component of the report must be conducted solely by

you. The report must be submitted via Blackboard by 12pm Wednesday 20 May 2020,

along with the signed EAIT coversheet which can be accessed here.

Submit a PDF that contains either handwritten responses (ensuring that any handwritten

responses are neat and clearly legible) or a typed document that provides all of the steps

and assumptions made to attain the solution. The PDF file should have the following file

name convention:


In addition, any external document that was required to obtain the solution, such as Excel

spreadsheet, MATLAB scripts/notebooks or Python scripts/notebooks, must also be submitted via Blackboard. Use an appropriate naming convention for these supplementary files.

For example:


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