The results show that ANN can be used to effectively predict the electromagnetic radiation and acoustic emission signals so as to provide reliable data for judging the state of coal and rock failure.
研究结果表明，采用神经网络可以有效预测电磁辐射和声发射信号，为判定煤岩变形破裂状态提供依据。
So LURR can be used as the precursor of rock failure and earthquake prediction.
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。
The fracture distribution of this area was predicted effectively combined with rock failure criterion.
然后结合岩石破裂准则，对该区域的裂缝分布做出了有效的预测。
The advances of researching rock failure and hydraulic fracture mechanism by energy method are introduced.
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 essential reason for rock failure is the relative displacement among mineral particles making up rock.
岩石发生破坏的机理是构成岩石的矿物颗粒之间发生相对位移。
Hydraulic fracturing is a typical illustration of coupling between seepage and stress in rock failure process.
岩石的水压致裂过程是典型的渗流与应力耦合作用的破坏过程。
At last, it is simulated that the rock failure modes in excavation with cavity in rock mass considering the coupling.
最后模拟了考虑耦合情况下空洞开挖时围岩的破坏模式。
By using rock failure process Analysis code (RFPA2D), the slip failure process of rock sample is numerically studied.
运用岩石破裂与失稳过程分析RFPA2D系统，对岩石剪切破裂过程进行了数值模拟研究。
The development of radial horizontal well drilling technology was under the studies on swirling jet theory and rock failure mechanism.
旋转射流理论和破岩机理研究，研制了径向水平钻井技术。
This paper deals with varying laws of the acoustic and the dynamical mechanical parameters in the process of rock failure under loading.
本文研究了岩石在单轴和真三轴加载的破坏过程与声波参数及动力学参数之间的关系。
The rock failure due to freeze-thaw weathering is a main engineering problem which often occurs in the rock engineering in cold regions.
岩石的冻融破坏是寒区岩石工程中常遇到的主要病害之一。
The middle joints quickly connect to the adjacent joints with the action of compression-shear stress, which results in the rock failure.
中间节理受压剪作用很快与相邻节理贯通导致节理岩体破坏。
The relation between AE characteristics during rock failure and machine stiffness is analysed under uniaxial compression with the above model.
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。
Due to the heterogeneity, rock failure mainly results from tensile damage but shear damage still exists, which has influence on the shear strength.
由于试样细观缺陷非均匀性的存在，导致岩石断裂主要由拉伸破坏引起，但拉剪混合破坏仍然存在，并对抗剪强度有较大的影响。
By using a rock failure Process Analysis Code RFPA2D, the deformation and failure behavior of a double rock sample system were studied numerically.
利用岩石破裂过程分析RFPA2D软件系统对不同岩性的二岩体相互作用系统受力破坏过程进行了数值模拟。
The criterion of rock failure and inner boundary condition need to be considered carefully while processing the fault growth, movement and deformation.
断裂的发生、运动与变形涉及岩石破裂准则与内部边界处理。
A numerical simulation of the experiment on rock with preexisted cracks under compression is presented by using a rock failure process analysis code, RFPA2D.
采用岩石破裂过程分析软件RFPA2D对预制裂隙大理岩试样的压剪试验进行数值模拟。
The stability of coal pillar of the short-wall mining was analyzed systemically by numerical simulation with the rock failure process analysis software (RFPA2D).
采用岩石破裂过程分析软件RFPA2D系统，对短壁机械化开采的煤柱稳定性进行数值计算与分析。
The horizontal well stress distribution and the rock failure criterion constitute a fracture initiation mathematical model, which was solved by the iteration method.
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。
It is very valuable that localize the micro-crack location in rock by AE location method to investigate the process of rock failure and predict the final failure position.
用声发射(AE)定位技术确定岩石内部微破裂的发生位置，研究岩石的破坏过程，对预测岩石最终的破坏位置具有重要的实用价值。
According to a point of view of energy distribution, authors present that rock failure is a process by which rock specimen stores and releases energy before and after rupture.
作者从能量分配的观点，认为岩石在破坏前后是一个能量储存与释放的全过程。
During the initial excavation, the tender coal seam workings in deep seam in Nantun Colliery takes on slocking of roof, with breaking-out in bulk coal and surrounding rock failure.
南屯煤矿深部松软煤层巷道，在掘进过程中顶板破碎，伴有大量顶煤冒落且围岩破坏严重。
The existence of a shear slip zone is proved, and the overlying strata are divided into different zones according to the rules of strata movement and characteristics of rock failure.
证实了剪切滑移区的存在，并按覆岩运动规律与破坏特征对围岩进行了分区。
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.
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。
The process of the rock failure due to freezing and thawing and the effect factors are systematically analyzed, also the mechanism of rock failure due to freezing and thawing is studied.
深入系统地分析了岩石受冻融循环影响的冻融破坏过程、影响因素，研究了其冻融破坏机理；
Through compaction hardness and analog shear rock failure test to drilling core, the paper discusses the possibility of discriminating downhole rock type by using rock acoustic emission frequency.
通过对钻井取心岩样压入硬度及模拟剪切的破岩试验，探寻利用岩石的声发射频率来判别井下岩石类型的可能性。
The rock failure mechanics with chemical damage is a new analysis method proposed by author. The method may explain and quantitatively analyze the mechanical effects of water and rock interaction.
重点讨论了考虑化学损伤的破坏力学方法，认为此方法可以解释并定量分析水-岩反应的力学效应。
Through analyzing rock failure due to rock burst in-situ, applying the rock burst strength theory and the stability theory, and using physical modelling experiment, the mathematical model is built.
数学模型是在实地分析岩爆破坏机制基础上，经过岩爆强度理论及稳定理论分析，并经过物理模型试验验证后建立的。
This provides a feasible testing method for studying the behavior and constitutive relation of rock failure with medium stain rate under dynamical loading or static and dynamical combination loading.
为研究岩石在中等应变速率下的动态加载或动静组合加载的破坏特性及本构关系提供了一种可行的试验方法。
This provides a feasible testing method for studying the behavior and constitutive relation of rock failure with medium stain rate under dynamical loading or static and dynamical combination loading.
为研究岩石在中等应变速率下的动态加载或动静组合加载的破坏特性及本构关系提供了一种可行的试验方法。
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