| 岩石爆破层裂机理的研究 |
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| 引用本文： | 郭文章,王树仁.岩石爆破层裂机理的研究[J].工程爆破,1997,3(3):1-4. |
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| 作者姓名： | 郭文章 王树仁 |
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| 作者单位： | 中国矿业大学北京研究生部 |
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| 摘 要： | 基于连续介质损伤力学，从Ｎａｊａｒ各向同性脆性损伤的能量定义出发，从能量角度分析了爆炸应力波传播过程中岩石损伤程度的变化，确定了岩石发生层裂的判据，即当入射压缩波尚未反射部分与反射拉伸波叠加后出现的拉应力等于岩石的损伤抗拉强度（本文简称）时，岩石发生层裂。从而弥补了岩石爆破层裂理论的不足，完善了岩石爆破机理。
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| 关 键 词： | 岩石爆破 损伤 层裂 |
RESEARCH ON MECHANISM OF ROCK BLASTING SPALLING |
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| Guo Wenzhang,Wang Shuren,Liu Dianshu.RESEARCH ON MECHANISM OF ROCK BLASTING SPALLING[J].Engineering Blasting,1997,3(3):1-4. |
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| Authors: | Guo Wenzhang Wang Shuren Liu Dianshu |
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| Abstract: | Based on continuous damage mechanics,and the view of energy dissipation and Najar's energy concept for isotropic brittle damage,the damage of the rock is analyzed during blasting stress waves propagation.Furthermore the rock spalling criterion is defined.The rock appears spalling when tensile stress wave of overlapping non-reflection of incidence compressive wave with reflection tensile wave,is equal to the tensile strength of rock damaged.Hence the deficiency of the rock blasting spalling theory is compensated and the mechanism of rock blasting is improved. |
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| Keywords: | Rock blasting Spalling Damage |
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