Deterministic Analysis Overview

In a Deterministic analysis it is assumed that all input parameters are "exactly" known (e.g. pillar geometry, soil stress, shear strength, etc.), and CPillar computes the factor of safety (FS) for a single pillar.

The general procedure for carrying out a Deterministic Analysis with CPillar is as follows.

1. Select Analysis Type, Pillar Shape, and Analysis Method

In the Project Settings dialog:

• Set the Analysis Type to Deterministic.
• Set the Pillar Shape to either Rectangular Pillar or Polygonal Pillar.
• Set the Analysis Method to one of the following:
  • Rigid (Polygonal Pillar or Rectangular Pillar)
  • Elastic (Rectangular Pillar)
  • Voussoir (Rectangular Pillar)

2. Input Data

In the Input Data dialog, enter the data as described in the following topics:

• Geometry
• Stresses
• Material Properties
• Rock Mass and Abutment Strength

3. Compute

The Deterministic Analysis is computed when you:

• Modify any inputs in the Input Data dialog, and select OK (or Apply).
• Change the Pillar Shape in Project Settings dialog.
• Change the Analysis Method in Project Settings dialog.
• Modify the geometry of a Polygonal Pillar.

4. Analysis Results

After the analysis is computed, the Sidebar will display a summary of results (factor of safety, pillar weight, etc.). A complete listing of all analysis input and output data, can be found in the Info Viewer.