Civil Engineering Reference
In-Depth Information
The magnitude and direction of the minimum required anchor force {A
d,min
} was de-
rived by Wittke (1967).
Figure 11.23
Three-dimensional
rock wedge, sliding parallel to
one discontinuity (Wittke 1990)
If {N
2
} is a tensile force, the stability against sliding parallel to discontinuity D1 needs
to be investigated (Fig. 11.23, upper). If {N
1
} is a tensile force, the stability against slid-
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