I have a parallel lock and just bought a laptop without a parallel port. What do I do? You can exchange your parallel lock for an USB version. Just ship us your old lock, and we'll ship you an USB version. The USB locks do cost us more than the parallel ones. You will only be charged the difference in cost plus shipping and handling. |
We lost the hardware lock/dongle, or someone at the office stole it. Can we get a replacement? Be very careful with your lock. You can get replacement disks/manuals for just the nominal cost plus shipping, but if you lose your dongle or it is stolen, we will have to charge you the cost of a second license to replace it. |
We installed STABL for Windows and, when we try to run it, we get a message like the one in the figure below. What is happening? |
I saved a working datafile and now I can't open it. STABL for Windows gives me a message of "command not found". What happened? There is a good chance you used a comma "," when you entered the title of your problem. Open the data file using notepad and remove any commas present. Save the file, and STABL should be able to open it again. STABL sees commas as field delimiters. That means that STABL thinks that your title ends at the comma and that whatever comes afterwards is another command. Version 3 will automatically filter out any commas and replace them with a dash "-". |
Can I simulate artesian water conditions with STABL for Windows? Yes you can. To simulate artesian water tables, just make sure you define more than one water table. The reason being that, if you place a water table above the ground, STABL for Windows will only add hydrostatic forces to the ground surface if that's water table number 1. Any other water tables will only add hydrostatic forces to the slices. So depending on your problem, you may have to define the first water table as being very deep, below any critical surface being generated, so it does not affect the analysis. And define your second water table to represent the artesian condition. |
I can't find the command LIMITS in STABL for Windows. Is it there? LIMITS was not active in version 2.2 of STABL for Windows. It will be back in version 3.0. You can obtain the same effect by defining a soil profile with the same coordinates you would use for your limits and then assigning the soil properties below them to a very large cohesion value. This will make that soil impenetrable. |
I can't figure out the right segment size to use when defining the circular surface parameters. What should I use? Think of the segment size as the approximate size of the base of a slice. You want to have at least about 25 slices on a typical circular surface passing through the probable critical region of your slope. That slice will be further subdivided everytime there is more than one soil crossing the basis of the slice, but even if you ignore this point, you should still be able to get a rought idea by manually drawing a circle and dividing it in 25 slices. The approximate size you get at the base of a slice should be your "maximum" size for that segment size. You can then run a case and check the number of slices associated to the critical surface. Obviously this is just a rule of thumb, since the influence of the number of slices on your results will depend on how complex or simple your geometry and loading conditions are. |
I want to restrict my circles to superficial / deep circles. How can I accomplish that? You can do that by controlling the initialization angle. The larger the initialization angle, the deeper the surfaces being generated. The smaller the angle, the shallower they will be. Notice that you have to be careful not to force your surfaces to move upwards if you are on the level plane before the toe of the slope. |
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