Fractal theory is used to study the fracture of rock mass.
利用分形理论对岩体裂隙进行研究。
The purpose of Controlled Blasting Engineering is study the directed fracture of rock and the crack expansion.
工程控制爆破 ，要研究岩石的定向断裂的裂纹扩展。
The mechanism of damage and fracture of rock blasting is composed of blasting mechanism and rock meso-damage theory.
岩石爆破损伤断裂机理是由岩石爆破机理和岩石细观损伤力学理论组成的。
The results of the present research can provide the theoretical basis about the blasting fracture of rock mass with joints.
研究结果可以为节理岩体的断裂爆破提供理论依据。
In the end, microscopic characteristics of rheological failure shaping fracture of rock under different confining pressures were analyzed.
最后对不同围压作用下岩石流变破裂断口微细观特征进行了分析。
The results show that the characteristic of acoustic emission is closely related to the load variation or the deformation fracture of rock.
结果表明，声发射与载荷变化或岩体变形破裂密切相关。
In recent years, concept of continuous damage mechanics was applied to investigation of failure and fracture of rock and the like materials.
最近几年来，连续损伤力学的观点已开始被应用于岩石类材料的破坏断裂的研究。
You Mingqins, Hua Anzeng. Fracture of rock specimen and decrement of bearing capacity in uniaxial compression. Mechanics and Engineering, 1998, 17 (3) : 292 -296. [J].
[10]尤明庆，华安增。岩石试件单轴压缩的破坏形式与承载力的降低[J]。岩石力学与工程学报，1998,17 (3)：292 - 296。
Then, the self-similarity of deformation and fracture of rock mass at different structural hierarchies and the fractal natures of the concentration parameters of fracture are introduced.
然后介绍在岩体不同层次上变形破坏的自相似特性及破坏的临界密度指数分形特性。
Analytical results have shown that the influence of the orientation and position of single crack originated from the boundary of tunnel on the fracture of rock around tunnel is considerable.
分析结果表明裂隙的方向和位置对围岩断裂的影响是显著的。
But the damage and fracture of rock is closely related to each other. And the relationship between strength criterion parameters of rock and fracture toughness of fracture theory is particular.
然而，岩石的破坏和断裂是紧密相联的，岩石强度准则的材料参数和断裂理论的断裂韧度存在特定的方程关系。
For more than a century researchers have known the basics of how limestone caves form: a tiny fracture opens in the rock perhaps due to some internal stress and water begins percolating through it.
超过一个世纪以来，研究者就懂得石灰岩洞形成的基本原理：可能由于内部的压力，石头上出现了微小的裂缝，然后水开始渗透。
For more than a century, researchers have known the basics of how limestone caves form: a tiny fracture opens in the rock, perhaps due to some internal stress, and water begins percolating through it.
超过一个世纪以来，研究者就懂得石灰岩洞形成的基本原理：可能由于内部的压力，石头上出现了微小的裂缝，然后水开始渗透。
Concerns have been raised in many countries about the safety of fracking, a technique in which high-pressure fluids are pumped into shale to fracture the rock and force out natural gas.
许多国家都对水力破裂法的安全性表示担心，这种技术是把高压液体注入页岩致岩石破裂从而挤出其中存储的天然气。
Fracture mechanism, initiation and propagation of cracks, and the control method of cracks in rock like brittle material under dynamic load are described in this paper.
本文主要论述了动荷载作用下岩石等脆性材料的断裂破坏机理、裂纹形成与扩展以及裂纹的止裂与控制等内容。
The results of fracture prediction would be affected by geologic model, geometric framework model, rock mechanics properties and regional stress background.
裂缝预测结果受地质模型、几何框架模型、岩石的力学性质和区域背景应力的影响。
A new idea that the distribution movement of electric charge in the crack tip end being associated with rock fracture propagation produces electromagnetic emission was brought up.
本文提出了岩石破裂时的电磁辐射是裂纹尖端电荷随着裂纹加速扩展运动所产生的假说。
Finally, this paper gives a shape equation of rock compression shear fracture nucleus describing the microcracking zone.
在上述结果基础上，提出了描述该微裂区的岩石压剪断裂核的形状方程。
The total fracture energy of rock specimens also increases linearly as confining pressure increases.
岩石全部断裂能随着围压的增加亦成正线性增加。
The observational result of crack fracture form for rock samples with close crack under unloading after the peak compression shear load.
介绍了对含闭合裂缝岩石试件在达到峰值压剪荷载时卸荷的裂缝断裂形态观察结果。
Based on unloading tests of rock samples, the deformation, parameters and fracture features of rocks under unloading are studied.
基于岩石试件的卸荷试验，研究卸荷条件下岩石的变形、参数及破裂特征。
Based on substantial experimental data, the effects of loading rates on the strength, fracture toughness and fragmentation efficiency of rock materials are discussed in this paper.
本文以充分的实验结果为依据，讨论了加载率对岩石材料的强度、断裂韧度和破碎效果的影响。
Based on the existing damage model of rock blasting and the theory of rock damage and fracture, a new damage model for rock blasting has been founded.
在分析现有岩石爆破损伤模型和岩石爆破损伤断裂理论的基础上，建立了新的岩石爆破损伤模型。
The pressure at which a treatment or test fluid can be injected into the formation matrix without causing a breakdown, or fracture, of the rock matrix.
在不造成岩石破裂或裂缝的情况下可将处理液或测试液注入地层时的压力。
Based on the viewpoints of rock fracture mechanics, compressive strength of rock mass controlled by discontinuities is discussed.
基于岩体断裂力学的观点，探讨基于结构面扩展的岩体抗压强度准则。
This paper deals with some conventional criterions of rock fracture based on relevant references and advances in the study of rock fracture.
在参考相关文献的基础上，简要介绍了常用的岩石断裂准则，以及岩石断裂研究新情况。
Based on the existing research results and up to the minute theory of rock damage and fracture mechanics, the blasting damage and fracture mechanism of rock and bedded composite rock is studied.
本文基于前人的研究成果，采用岩体损伤、断裂理论的最新研究成果，研究了岩石和层状复合岩体在爆炸应力波和爆生气体作用下的损伤断裂机理。
Based on the results of rock fracture experiments and the theory of seismic precursors, the preparation process of the earthquake is divided into several stages.
根据岩石破裂实验结果和地震前兆理论，对这次地震的孕育过程作了阶段性的划分。
Based on the results of rock fracture experiments and the theory of seismic precursors, the preparation process of the earthquake is divided into several stages.
根据岩石破裂实验结果和地震前兆理论，对这次地震的孕育过程作了阶段性的划分。
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