Input Data Overview

RocPlane computes the Factor of Safety for the sliding of a block / wedge formed in a rock slope by:

1. The face of the slope,
2. A discontinuity that strikes parallel to the slope and daylights into the slope face,
3. The upper ground surface, and
4. A tension crack (optional).

A typical problem geometry in RocPlane is illustrated below.

At an early stage in the solution process, RocPlane checks if the geometry of a model is valid before proceeding to calculate a Safety Factor or Probability of Failure for a sliding block. For more information on the validation of model geometry, see Geometry Validation in RocPlane.

To enter model parameters, select the Input Data toolbar button or Input Data in the Analysis menu. This opens the Input Data dialog. This dialog allows you to define the following model input parameters:

• Slope Angle , Slope Height, Unit Weight
• Upper Face Angle , Bench Width Analysis (optional)
• Failure Plane Angle , Waviness
• Failure Plane Strength
• Tension Crack Angle , Location (optional)
• Water Pressure
• Seismic Coefficient
• External Force