西部寒区裂隙岩石损伤破坏机理研究是目前寒区岩石力学领域的基础性研究课题之一。
The research of damage characteristics of cracked rock in cold region is one of the fundamental projects in the rock mechanics research field in cold region.
对循环加载和分级加载条件下岩石损伤破坏全过程的声发射规律和频谱特性进行了研究。
The acoustic emission regularity and spectrum characteristics of rock under cyclic loading and multi-stage loading during complete failure process were studied.
本论文采用关联维数来描述岩石声发射时间序列的分形特征，研究岩石损伤破坏过程的演化规律。
Therefore, describe the fractal feature of acoustic emission time sequence by correlation dimension and research the evolution law of rock damage and failure process.
同时，也为进一步建立岩体结构合理的损伤演化方程、本构关系和研究岩石破坏机理提供了科学依据。
At the same time, some scientific hypotheses of the damage evolution equations and stress-strain relationship as well as the failure mechanism of rock mass are also proposed.
进一步通过细观损伤力学的研究，可以揭示岩石变形破坏过程中能量耗散的内在机制。
Furthermore, the intrinsic mechanism of energy dissipation during the deformation and fracture of rocks can be disclosed by the research of meso damage mechanics.
岩石变形过程复杂，且受环境因素的影响，而影响其破坏的初期损伤状态是关键。
The course of rock deformation is complicated and easily influenced by environment factor and the key is the initial damage state that influences the fracture.
在CT尺度裂纹演化和破坏阶段，由于岩石损伤高度局部化，声发射率参数不能精确反映岩石破坏的细观机制。
At the process of ct crack and rapture evolution, the acoustic emission can not precisely reflect the meso-mechanism of rock deformation and rapture because of localization of damage.
岩石能量耗散在一定程度上反映了岩石内部的损伤破坏情况。
The energy dissipation is related to the internal damage of rock to some extent.
从而达到破坏水介质一侧岩石，且尽量减少空气介质一侧岩石爆破损伤的目的。
Water media face the side of the blasting rock and air media face the side of the obligate wall rock.
用CT图像定量分析岩石受力损伤破坏过程的难点，是难以知道岩石内部的绝对密度变化量。
It is difficult to detect the absolute density of rock by ct image in quantitative analysis of rock damage process in compression.
结果表明，岩石循环冲击损伤具有明显的围压效应，围压的存在提高了岩石抗冲击破坏的能力。
Results show that rock damaged under cyclical impact will obviously bring confining pressure effect, and the existence of confining pressure also increased the ability of rock against impact damage.
利用逾渗和重整化群理论初步分析了脆性岩石的临界损伤破坏行为，指示性地得出了岩石的临界破坏概率。
The paper analyzed the critical failure action and brittle rock with a penetration and reestablishment group theory. The critical failure rate of the rock was obtained.
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。
In recent years, concept of continuous damage mechanics was applied to investigation of failure and fracture of rock and the like materials.
能量耗散使岩石产生损伤，并导致岩性劣化；能量转化则是引发岩石拉伸破坏的内在原因。
Energy dissipation leads to rock damage and lithologic deterioration while energy conversion is the internal cause for rock tensile fracture.
通过水中爆炸波对水泥试样的损伤破坏实验来模拟水力裂缝层内爆炸采油中激波使岩石损伤开裂的现象。
Based on the experiments of exploding on the surface of the cement sample, the phenomenon of the rock damage and fracture by shock waves in exploding was simulated.
经实测数据与所建模型对比验证，延性破坏、脆性破坏模式本构模型精度较高，可为岩石损伤评估提供依据。
Proved by the test data, the precision of constitutive model with brittle, ductile failure is higher, which can provide accurately the basis for rock damage assessment.
岩石在变形破坏过程中始终不断地与外界交换着物质和能量，是一个能量耗散的损伤演化过程。
The deformation and fracture of rocks are an evolution process with exchange of energy and mass between rocks and outer exotic environment.
岩石在变形破坏过程中始终不断地与外界交换着物质和能量，是一个能量耗散的损伤演化过程。
The deformation and fracture of rocks are an evolution process with exchange of energy and mass between rocks and outer exotic environment.
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