Since a consistent 5 to 6m/hr PR will exceed most conveyor capacities, why is there no reaction (from somewhere along the chain of responsibility) when the students find 20 to 30m/hr (or even larger) in their estimates? Who is responsible? Student, professor (likely a co-author), or journal reviewers and editors? A point of some importance is that the young students are likely reviewing established empirical methods now also used by others, and developed when those concerned had considerable TBM experience, so knew very well if they (the originators) were in any way justified in publishing in the first place. They compare numerous established prognosis methods, and regrettably make unintended mistakes, coming up with order-of-magnitude errors on AR and PR, maybe far beyond world records or practical possibilities. There seems to be an increasing number of MSc or PhD studies by young students with little tunnelling or TBM experience. This open letter from European scientists expressing solidarity and promoting peace is open for signatures:.Labs supporting Ukrainian Scientists is an expansive list of labs and PIs offering support at this time.Science for Ukraine provides an overview of labs offering a place for researchers and students who are affected to work from, as well as offers of employment, funding, and accommodation:.Personally, I have found the messages of support from scientists everywhere to be truly heartfelt, and I would like to highlight some of the community initiatives I’ve seen here: We also want to use our platform to highlight the response from the scientific community. For project specific case, you may find a similar example in ‘Example Applications’ or ‘Verification Problems’ section. After all these you will have a solid foundation to take up any problem for simulation. After developing confidence with software interface, you may read ‘Problem Solving with FLAC3D or 3DEC’ section to develop an understanding on selection of material, meshing, stress initialization etc. Even after this if you are confident with any keyword, you may search it in command reference which describes every keyword in detail. If you want to see the how a keyword functions, you can insert comma before other lines to make them read as comments. Command and plot windows can be opened simultaneously and text files can be called to develop an understanding of each keyword. Examples are given to make you comfortable with interface you copy and paste the examples in text (or data) file to run the commands interactively through file driven mode. You may start with getting started section of the manual.
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