Dr. Sharrock has 15 years industry experience in a wide range of rock mechanics positions such as Principal Geotechnical Engineer (Newcrest Mining NL), Rock Mechanics Engineer (Mt Isa Mines), Senior Geotechnical Consultant (AMC Consultants), Senior Lecturer in Geotechnical Engineering (UNSW) and Associate Professor - Caving Geomechanics (UQ).
This webinar is for people who have used 3DEC before and are interested in the latest developments.
This hands-on, virtual training course is 16 hours total, spread over four days in a 1.5-week period, and covers the analysis of embankment dams using FLAC.
Mr Hebert is a geotechnical engineer with experience in both the mining and civil industries. He has provided consulting on many projects including underground mining (e.g. block cave mining, pillar stability), open pit mining, underground excavations (e.g. tunnels, caverns, nuclear waste storage) and dams.
Most of the problems that occur when running 3DEC models are the result of bad block geometries. 3DEC
offers the ability to cut up blocks to any angle at any size. This is a
very powerful feature, but unfortunately this power also allows for the
creation of very thin or very small blocks. These can cause problems
when deformation occurs and blocks start to collapse, resulting in error
messages such as ‘negative volume zone’ or ‘bad face normal’.
The first step in dealing with these problems is identifying the bad blocks. In the next version of 3DEC,
ranges will be included to do this. For now, you can write FISH ranges
to do the same thing. The file below gives four FISH ranges you can use
These ranges, along with the built-in range volume,
can help identify problem blocks. An example is shown below. A block is
cut with the DFN and the resulting blocks are shown on the left. The
bad blocks then are assigned group names using the above ranges as shown
on the right plot. The data files required to run this example are also
Two important questions remain.
DOWNLOAD FISH FUNCTIONS (ZIP, 6 kB)
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