Civil Engineering Reference
In-Depth Information
Figure 16.13
Compensation test using small flat jacks (SFJ) (Rocha et al. 1966b)
In other cases where the geometry of the underground opening is more complex or
the rock mass is anisotropic and not homogeneous, the interpretation of compensa-
tion tests requires numerical analyses. In addition, the stress state adjacent to an under-
ground opening is frequently disturbed by the excavation, which causes loosened rock
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