SPT calculation module
In the calculation input tab the user can input the required field data and calculation properties. If the ENTER key is hit after input of a depth value the software will advance to the SPT cell and fill it with the value estimated from CPT data of that depth. SPT points can be excluded from the calculation simply by unchecking the "Can Liquefy" check box.
Calculation Properties
•Calculation Method: Calculation method can be one of the NCEER (1997), Seed et al. (2004) or Boulanger & Idriss (2004)
•Sampling Method (Cs): Correction factor for samplers with or without liners
•Borehole Diameter (Cb): Correction factor for borehole diameter
•Rod length: Specify rod length above ground surface to be used for the calculation of CR (correction factor for rod length)
•Hammer Energy Ratio (Ce): Correction factor for hammer energy ratio (ER)
•Round Corrected SPT: A selection of options on how the software will manege calculated corrected SPT. Among the available options "Down" is the most conservative and "Up" is the less conservative
In the calculation results area the user can view plots and tabular results of the calculation.
SPT calculation results