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Importing Liquefaction Input Data

Liquefaction input data must be imported from a ".lfn" file, and this file must be formatted as shown below.

Sample Exported .Ifn file from Settle3
Sample exported .lfn file from Settle3

To import liquefaction data into the program, it is easiest to modify a file that you exported. However, you can also follow the formatting rules below (note that this is for SPT input data):

Line 1: "Settle3 - LD FUNCTION FILE"

Line 2: "VERSION 1.0"

Line 3: blank

Line 4: "FUNCTION NAME: file location"

Line 5: blank

Line 6: " type: 5 num: number of data points"

Line 7+: " depth: # n: # qc: 0 fs: 0 vs: 0 fc: 0"

  • If you are using CPT input data, line 7 and beyond changes to " depth: # n: 0 qc: # fs: # vs: 0 fc: 0"
  • If you are using VST data, line 7 and beyond changes to " depth: # n: 0 qc: 0 fs: 0 vs: # fc: 0"
  • For any of the input data types you can either enter a number for fc or leave it as 0. If you enter a number, remember to select the Use Custom FC checkbox.
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