2) surrounding rock instability
围岩失稳
1.
In order to control the occurrence of such disasters,using acoustic emission and real-time borehole imaging tool monitoring the whole process of surrounding rock "injury-rupture-instability",will provide a basis for control of the surrounding rock instability.
针对急斜煤层水平分段综放开采围岩失稳特征,通过对围岩力学模型分析,研究围岩结构的失稳过程和演化途径。
3) competent rock
自稳岩石
4) firm rock
稳固岩石
5) instability problems
煤岩体失稳
1.
In this paper, the authors have studied the mechanics of dynamatic failure problems, that is, instability problems, such as coal burst, roof-floor rock burst, mine earthquake, and coal-gas outburst, which occur in coal mine.
本文对矿井中几种变形失稳现象:煤体冲击地压、矿震、顶底板冲击地压及煤与瓦斯突出,分别建立了煤岩体压缩、剪切、拉伸、固液耦合失稳模型及失稳判别准则,初步构画了矿井煤岩体失稳问题的框架。
6) Crack and destabilization of coal-rock
煤岩破裂与失稳
补充资料：裂纹失稳扩展
分子式：
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
CAS号：
性质：材料内部裂纹尖端的应力场强度因子达到或超过材料的断裂韧性之后发生的裂纹快速扩展。裂纹失稳扩展将导致材料迅速断裂。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条