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2014
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Fig 12
Research Article
Back Analysis of Geomechanical Parameters in Underground Engineering Using Artificial Bee Colony
Figure 12
Calculated stress comparison between using theory value and identified value at stage 3.
(a)
σ
x
using theory parameters
(b)
σ
x
using identified parameters
(c)
σ
y
using theory parameters
(d)
σ
y
using identified parameters