When boiling rock erupts from a volcano and crashes back to earth, it causes less damage than you might imagine.
当煮沸的岩石从火山爆发和撞回地球时，它的损伤较小超乎你的想象。
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.
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。
The blasting damage and fracture process of rock is complicated dynamic evolvement process.
岩石爆破损伤断裂过程是一个复杂的动态演化过程。
At present, in the design and construction of smooth blasting, considering few influence that main blast hole 'first blast damage to rock of smooth blasting parameters.
目前，在光面爆破设计与施工中，均未考虑主爆孔先爆造成光爆层岩石损伤对光面爆破参数的影响。
Then the statistical damage constitutive model is developed for saturated and unsaturated rock based on the mixture theory.
在混合物理论基础上，建立了饱和、非饱和岩石损伤软化统计本构模型。
Taking the influence of microdefects into account, a new constitutive relationship of damage is developed, and applied to different models of rock with different porosities.
本工作考虑这些微缺陷的影响建立损伤本构理论，将其应用于根据岩石所含孔隙度不同而提出的不同模型。
Rock density damage increment with ct can be obtained by subtracting ct number of the undisturbed rock samples from that of the loaded rock samples.
通过对岩石试样在加载前后测得的CT数作差值运算，可获得岩石试样在不同应力阶段的CT密度损伤增量。
By introducing a damage variable expressed by the equivalent shear stiffness, a dynamic shearing damage constitutive model of rock is established including three phases.
定义了用等效剪切刚度表示的损伤变量，建立了一个分三阶段表述的岩石动态剪切损伤本构模型。
Finally, the evolution law of rock scale on the damage properties is discussed.
最后探讨了岩石尺寸对损伤特性的演化规律。
Basen on the criteria of the peak particle velocity(PPV) for blast-induced damage, the design approach for excavation blasting near contour of rock slope is discussed.
基于岩石爆破损伤影响范围控制的质点峰值振动速度判据，就临近岩石边坡开挖轮廓面的爆破开挖设计方法进行了探讨。
Based on random distribution of interior defect in rock, a statistical damage constitutive model for rock is developed by using the continuous strength theory and statistical theory.
结合连续强度理论和统计理论，从岩石内部缺陷分布的随机性出发，建立了岩石统计损伤本构模型。
The results show that thermal cracking damage of rock is a general phenomenon highly affecting mechanical properties of rock.
结果表明，岩石的热开裂损伤是一种普遍现象，并对岩石的力学性质等有显著影响。
The results indicate that the variation of ultrasonic velocity can reflect the damage degree of rock well, and the damage properties of rock can provide basis for the design of rock blast.
结果表明，岩石超声波速的变化可以很好地反映岩石的损伤程度，得出的岩石的损伤特性可以为岩石的爆破设计提供依据。
It is difficult to detect the absolute density of rock by ct image in quantitative analysis of rock damage process in compression.
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。
The damage propagation of rock under the freezing and thawing condition is a new direction of rock damage mechanics.
岩石冻融过程的细观损伤研究是近年来冻融损伤研究的一个新方向。
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.
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。
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。
And with the introduction of the Modulus of Elasticity from Budiansky method, the general damage model of rock blasting is established in the paper.
引入了自洽法有效弹性模量，建立了爆破作用的岩石损伤的全过程模型。
The evolution law of CT number and CT images in the complete process of damage failure of frozen cracked rock is studied.
分析了冻结裂隙岩石加卸载损伤全过程的CT图像和CT数的演化规律。
Considering the relationship of the attenuation of wave and damage energy dissipation, a new rock damage model is developed for rock blasting.
在考虑岩石冲击损伤过程的声波衰减规律及其与能量耗散率关系的基础上，建立新的岩石爆破损伤模型。
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。
Thus, it is very important to study the damage ct values of rock subjected to different freezing rates.
因此，研究冻结速度对岩石损伤结构的影响具有重要意义。
The energy dissipation is related to the internal damage of rock to some extent.
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。
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.
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。
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.
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。
Finally, based on geometrical damage mechanics, the initial damage tensor of REV of rock at mesoscale is obtained, and then introduces it into g.
最后，依据几何损伤理论得到基于岩石细观量化试验的岩石REV的初始损伤张量，将其引入到g。
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.
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。
Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.
参照经典塑性力学的屈服面理论，引入了温度作用下应力空间中脆性岩石的损伤面模型，定性地讨论了荷载和温度影响下损伤面时的演化规律。
The rock damage evolution rules are discussed.
探讨了脆性岩石动态损伤演化规律；
The rock damage evolution rules are discussed.
探讨了脆性岩石动态损伤演化规律；
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