| 完整岩石拉压应力状态下的张裂破坏准则1) | 
| 吕爱钟, 刘宜杰, 尹崇林 | 
| EXTENSION FAILURE CRITERION FOR INTACT ROCK UNDER TENSION AND COMPRESSION STRESS1) | 
| Lü Aizhong, Liu Yijie, Yin Chonglin | 
| 图1 $\sigma_{1}$主平面的面积从$S$增大到$S+\Delta S (\sigma_{1} \geqslant \sigma _{2} \geqslant \sigma_{3} )$ | 
| Fig.1 Area of $\sigma_{1}$-plane increases from $S$ to $S+\Delta S(\sigma_{1} \geqslant \sigma_{2} \geqslant \sigma_{3} )$ | 
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