TM 5-818-1 / AFM 88-3, Chap. 7
needed as all the anchors are effectively "proof-tested"
to fail a large number of anchors in any-test program. If
(about 120 to 150 percent of design load) when the
the tieback extends into the property of others,
tendons are tensioned for the design load. One or more
permission, and possibly a fee, will be required. The
anchors may be loaded to failure; however, as the cost
tieback tendons and anchorages should normally be left
of replacing a failed anchor is often two to three times
in situ after construction is completed. See table 14-3 for
the cost of an initial insertion, care should be taken not
additional design considerations.
14-21
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