Environmental Engineering Reference
In-Depth Information
8.5 Families of all possible longitudinal subsurface critical size
cracks in the HT mode of hydraulic and operating mode (2).
8.6 Development of cracks in time: 1) initial crack; 2) crack which
propagated during operation; 3) crack at the end of operation.
c cr
f
c c HT
a cr
f
￿ ￿ ￿ ￿ ￿
a c HT
t safe
t HT
8.7 Graph of crack propagation in time.
 
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