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1)  stability of the roadway surrounding
巷道围岩失稳
2)  surrounding rock of roadway
巷道围岩
1.
Fracture Growth and Board Kind Structure and It's Non-equal Support in Surrounding Rock of Roadway of Fully Mechanized Caving Coal Face;
综放回采巷道围岩裂纹扩展与类板结构及其非均称控制
2.
Analysis and control of distortion of surrounding rock of roadway at deep ground of mine
矿井深部巷道围岩变形浅析及控制
3)  surrounding rock
巷道围岩
1.
Variation of anchoring force during the course of deformation and failure of surrounding rock;
巷道围岩变形破坏过程中锚固力的变化规律
2.
Physical simulation test of damage character of surrounding rock under different levels of the horizontal stress
不同水平应力作用下巷道围岩破坏特征的物理模拟试验
3.
In order to obtain the rule of creep failure of high ground stress rock, the process of creep failure of surrounding rocks is simulated under the action of high ground stress at different depths in deep engineering, then time-creep, horizontal ground stress (depth)-creep curves and time-horizontal ground stress (depth)-creep curved surface are obtained.
对深部工程中不同深度的巷道围岩在高地应力作用下的蠕变破坏过程进行了数值模拟,得到了时间-蠕变、水平地应力-蠕变曲线组和时间-水平地应力-蠕变三维曲面。
4)  roadway surrounding rock
巷道围岩
1.
Under engineering stresses in colliery,deformation of multiple structure of roadway surrounding rock is complex and unbalanced.
巷道围岩复合结构在矿井工程应力的作用下呈现复杂的、非均衡的变形破坏现象,围岩弱结构对巷道围岩破坏区域发育形态、结构变形破坏演变过程以及围岩稳定性等具有重大影响。
2.
According to the strata character round the coal seam,the structure character of roadway surrounding rock in coal mines has been analysed systematically by three type.
依据巷道围岩的层状特征以及工作面的开挖空间特征 ,将采空区老顶岩层的断裂情况概括为煤壁内断裂和煤壁外断裂两种类型 ;根据巷道与采空区的位置关系 ,将巷道分为 3种类型 :煤体 -煤体巷道、煤体 -煤柱巷道、煤体 -采空区巷道 ,并对巷道围岩结构特征进行了系统分
3.
In this paper, compositive research techniques including of theoretical analysis, numerical simulation and in-situ measurement are carried out to investigate the destructive mechanics of roadway surrounding rock, law of roadway deformation.
本论文采用理论分析、计算机数值模拟以及现场观测等综合研究方法,对深井高地压巷道围岩破坏机理、巷道围岩变形规律进行了系统深入的研究。
5)  the stability classification of roadway surrounding rock
巷道围岩稳定性分类
1.
The artificial neural network provides us a new theoretical method on the stability classification of roadway surrounding rock.
人工神经网络理论的出现为人们研究巷道围岩稳定性分类提供了一种新的理论方法。
6)  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。
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。

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