Research Article
Study on Multiparameter Precursory Information Identification of the Fracture of Yellow Sandstone
Table 3
Dissipative energy table of body strain precursory information.
| | Numbering of rock samples | Dissipation energy inflection point (kJ/m3) | Corresponding moments (s) | Precursory warning time (s) | Percentage of total time in advance | Average value (%) |
| | sz-17 | 7.82 | 1124 | 95 | 7.8 | 7.8 | | sz-18 | 9.52 | 1215 | 101 | 7.7 | | sz-20 | 9.57 | 1132 | 91 | 7.4 | | sz-21 | 9.93 | 1170 | 100 | 7.9 | | sz-22 | 8.68 | 1144 | 142 | 8.1 |
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