153

REJECTAND

REPLACE

ANCHOR TEST TO TEST LOAD

LOCK-OFF AT 50%OF THE

MAXIMUMACCEPTABLETEST LOAD

CREEP CRITERIA

ENHANCEDACCEPTANCE

CRITERIA

LOCK-OFFAT DESIGNLOCK-OFF

LOAD

LOCK-OFFAT DESIGNLOCK-OFF

LOAD

OR

OR

OR

OR

MINIMUM APPARENT FREELENGTH CRITERIA

PASS FAIL

FAILPASS

POSTGROUT NO POSTGROUT

REJECTAND

REPLACE

PASS FAIL

REJECTAND

REPLACE

LOCK-OFF AT 50%OF THE

MAXIMUMACCEPTABLETEST LOAD

Figure 73. Ground anchor acceptance decision tree (after PTI, 1996).