讨论了岩石破坏与能量耗散、能量释放的内在联系。
The intrinsic relations between energy dissipation, energy release and failure of rock are discussed.
从岩石破坏基本机制入手,研究重复压裂造缝机理。
The fracture initiation mechanism of refracturing was investigated by discussing rock failures.
故此,加卸载响应比可以被用做岩石破坏及地震预测的前兆。
So LURR can be used as the precursor of rock failure and earthquake prediction.
本文研究了在不同的应力途径下岩石破坏的条件和破裂的前兆。
In this paper, the conditions of rupture 'and rapture precursors of rock samples under different stress paths have been studied.
分析和评价了岩石破坏所形成的序列结构形式以及对其强度的影响。
The structural sequence formed from the failure of rock and its effect on the rock strength were analyzed.
讨论了岩石间隔性区域断裂过程中能量转化与岩石破坏的内在机制。
The intrinsic mechanism of energy conversion and failure process in the intermittent regional fracture process of rock is discussed.
介绍我国应用能量原理研究岩石破坏机制及岩体水力劈裂机制的进展。
The advances of researching rock failure and hydraulic fracture mechanism by energy method are introduced.
数值分析结果可为水射流破岩机理研究中岩石破坏准则的选择提供依据。
The results can provided some ideas in considering the rock damage criterion for rock failure mechanism study under water jet impact.
从分析可以看出,岩石破坏块度的对数正态分布与材料的多重破坏有关。
It is demonstrated that lognormal distribution is closely related to the multi-fold fracture of the material.
依据这一模型,分析了单轴压缩时岩石破坏阶段声发射特性与压机刚度的关系。
The relation between AE characteristics during rock failure and machine stiffness is analysed under uniaxial compression with the above model.
分析了岩石破坏比能,采用有限元方法研究了矿床开采过程中岩体能量的释放规律。
The destructive ratio of energy in rock is analyzed, and the laws of energy release in rock mass are researched with the finite element method.
最后进行了巴西圆盘劈裂CT扫描实验,分析了孔隙岩石破坏机理及其孔隙结构的变化。
A number of Brazil disc split-CT scanning tests are carried out to analyze the failure mechanism of porous rock and the changeable porous structure.
以岩石破坏准则为基础,采用岩石力学的理论和方法,建立了射孔完井临界出砂预测模型。
Critical sanding prediction model with perforated well completion was established using the theory and method of rock mechanics based on rock burst criterion.
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.
岩石破坏时最大剪应力位于0.5倍喷嘴直径的径向距离处,同时在固体介质表面边缘产生最大拉应力。
The maximum cutting stress lie of the radial distance of 0.5 double diameter nozzle, while the maximum pull stress lie in the surface edge of the rock.
水平井井筒应力分布和岩石破坏准则构成了水平井压裂裂缝起裂数学模型,利用迭代法对模型进行了求解。
The horizontal well stress distribution and the rock failure criterion constitute a fracture initiation mathematical model, which was solved by the iteration method.
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.
岩石的破坏前兆是否明显跟岩性有关,相比较而言,岩石破坏时的声发射率前兆比声发射能量率前兆更为明显一些。
Whether the precursor is obvious is correlated to rock the character, and the precursor of AE rate is more apparent than the precursor of AE energy rate comparatively.
测定和研究与岩石实际破碎过程有关的动载特性,对解决工程中如何有效地破碎岩石和防止岩石破坏两问题很有必要。
The measurement and study of dynamic characters concerning the rock in breaking is necessary for the two-sided problems of how to break the rock effectively and prevent the rock from failure.
对拉西瓦花岗岩在各种受力情况下岩石破坏断口,进行了微观扫描电镜试验研究,分析了岩石微观破坏形貌特征和微观破坏力学机制。
For Laxiwa granite failure surface under various stress states, the microtest has been carried out to study the microfailure character and its mechanism.
对应于岩石工程破坏,存在相应的周围岩石破坏状态,对这种岩石破坏状态的简单力学描述或表达式就是本文介绍的岩石工程破坏准则。
There is a rock failure state which corresponds to rock project failure. A simple description or expression of rock failure state is the criterion for evaluation of rock project failure.
利用岩石破坏过程分析软件——RFPA2D对该模型进行数值模拟,模拟结果显示了重力坝破坏的三种模式:表层滑动、深层滑动及混合滑动。
The failure process of the model was simulated by RFPA2D software. Simulation results show three failure modes of gravity dam, such as surficial slide, deep slide and mixed slide.
如果有人在徒步旅行中撞倒了几块岩石,他们可能在不知不觉中破坏了动物或有机体赖以生存的小气候。
If someone on a hike knocks a couple of rocks over, they could be unwittingly destroying a microclimate that an animal or organism relies on.
斯科特辩解说水下开采将比陆地开采带来的环境破坏少得多:由于是直接在海底作业,因此将不会有大量的岩石废料。
Dr Scott argues that underwater mining will be far less disruptive to the environment than terrestrial mining: there will be no piles of waste rock, since the deposits are directly on the sea floor.
他解释说,对岩石内石墨的冲击能制造出混乱的“无序”区,这种区域可以抵抗钻石的破坏,至少从一个方向上钻石无法穿透它。
He explained that sometimes during the shock of impact graphite can create jumbled "amorphous" zones that can resist diamonds, at least those coming at them from one direction.
从山上慢慢流动下来的岩浆产生更大的破坏,因为融化的岩石会将路上所有的东西都摧毁。
The lava that flows slowly like a wave down the mountain causes far more damage because it buries everything in its path under the molten rock.
这与弹体在普通混凝土和岩石中的侵彻现象明显不同,主要是由侵彻弹体发生破坏失去了继续侵彻能力造成的。
The results indicate that the penetration depth does not increase with the increasing hit velocity, which is different from the phenomena of the penetration of concrete and rock.
不同岩石构成的层状复合岩体表现出各自特殊的变形与破坏特性。
The stratified composite rock mass composed of different rocks has a particular feature of deformation and breakage different from each other.
通过数值模拟结果之间的对比分析,揭示出岩石试样宏观破坏模式随细观层次上韦伯分布参数的变化而不同。
It has been revealed by the comparison of numerical simulation results that the macro-failure modes of rock samples are different according to parameters of Weibull distribution at mesoscale level.
实验表明几种岩石的强度、延性和脆性、体积变化和破坏前兆等与应力途径有关。
The experiments showed that the strength, brittleness and ductility, volume change and failure precursors are concerned with stress paths.
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