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Advances in Civil Engineering
/
2018
/
Article
/
Tab 4
/
Research Article
Dynamic Fracture Toughness and Dynamic Tensile Strength of the Rock from Different Depths of Beijing Datai Well
Table 4
Dynamic fracture toughness and dynamic tensile strength of 410 m.
(MPa·m
1/2
·s
−1
)
(MPa·m
1/2
)
(MPa)
111089
12.8
9.3
141265
14.7
9.8
150903
15.5
10.3
163611
15.5
10.7
165121
16.2
12.8
212652
16.8
13.9
170339
17.0
14.9
235937
17.5
16.4