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A new method called the Stress Compensation-Displacement
Discontinuity Method (SC-DDM) is proposed
for the Homogenization Analysis of
2-dimensional
Multi Joint Set Problem.
Mechanical behavior of the rock mass which
contains many joint sets within is
dependent
upon the joint set geometry and condition,
such as the number of joint sets, the
joint
length, the joint interval, the aperture
of joint and so on, and concerns with
the
loading condition including the orientation
of loading. In order to analyze the
mechanical
characteristics of such a rock mass,
the
homogenization is successfully applied
in
the present paper, together with a
stress
compensation scheme. An infinite structure
of rock mass is homogenized using a
unit
cell which is a representative structure
of microscopic, and the macroscopic
behavior
is defined and analyzed basing on the
fundamental
response of the unit cell analyzed
numerically
by the Displacement Discontinuity Method.
In the present paper, the theory and practice
for the analysis of the stress intensity
factor around the tip of joint are
mainly
presented and discussed, along with
the stress
compensation scheme of indispensable
for
the analysis of the infinite structure.
The
case studies of a single open joint
set problem
are performed using a latticed model
and
an alternative model, and the usefulness
of the SC-DDM is made clear.
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