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Basic Data

This part of the window serves to introduce basic parameters of soils - unit weight, angle of internal friction and cohesion. The particular values are obtained from geotechnical survey or from laboratory experiments. If these data are not available, it is possible to exploit built-in database of soils, which contains values of selected characteristics of soils. The characteristics of rocks are not listed in the database built, these parameters must be defined manually. Approximate parameters of rocks are presented in the theoretical part of the Help herein.

Soil parameters differ according to the analysis type and analysis method ("Settings" frame, "Piles" tab).

The analysis type differs according:

  • Analysis for drained conditions: effective parameters of shear strength of soil cef, φef are used commonly ("CSN 73 1002","Effective stress").
  • Analysis for undrained conditions: in program is defined total shear strength of soil cu ("Tomlinson").
  • Method NAVFAC DM 7.2: this method combines two types of calculation. For each layer of soil is defined, whether the soil is calculated as drained (cohesionless) or undrained (cohesive).

The associated theory is described in detail in chapter "Pile analysis".

Dialog window "Add new soils" - "Basic data"