CLU-STAR is a program for
computerised structural geology data collection and analysis.
The program recognises the discontinuity sets of a rock mass
through hierarchical and non-hierarchical clustering procedures
derived from the multivariate analysis.
procedures operate directly on the collected data instead of on
their statistical distribution; the results are consequently
closer to the geomechanical reality.
The high interactivity of
the program offers the operator a better control of the full
sequence of operations, as it is possible to choose the
clustering level (and hence the dimension of the clusters), as
well as the algorithms for the assignment of the joints to the
individual discontinuity sets.
Once the joint sets have
been determined, the program calculates the safety factor of the
rock wedges, considering water pressures, surcharges, rock
bolting and seismicity.
program can also evaluate the anisotropic permeability tensor of
the rock mass.
Different outputs are
produced both in graphical and tabular form:
- the printout of the
structural geology data collection sheets;
- the projection of the
originally collected joint poles onto the stereonet;
- complete projection of
the results of the cluster analysis: the joint sets, the
great circles, the rock wedge safety factors, the slope face
and the friction angle circle can be represented on the
- a rose diagram for the
evaluation of the dip direction distribution