For fracture rock, the fracture stress will be reduced and the crack length will increase under the chemical corrosion.
对于裂隙岩体来说，化学溶液的腐蚀则主要体现在断裂应力的减小和裂隙的增大。
Then, the paper presents the develop trend about the comprehensive estimation of fracture rock, study on dynamic model and numerical modelling, and combining the theory with practice.
在其基础上对节理岩体的质量综合评价、力学模型的研究、数值模拟的研究、理论与试验相结合等方面的发展趋势提出了几点看法。
Other mountains may be raised by earthquakes, which fracture the Earth's crust and can displace enough rock to produce block mountains.
另一些山脉可能是由地震引起的，地震使地壳断裂，并移动足够的岩石，从而形成块状山脉。
The descending rock is substantially cooler than the surrounding mantle and hence is less ductile and much more liable to fracture.
下降的岩石比周围的地幔的温度低很多，因此延展性较小，更容易断裂。
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。
Static fracture agent, after all, is one way to break rock and concrete in complicated surroundings and unable blasting condition.
在环境复杂且不能施爆的情况下，用静态破裂剂破裂岩石或混凝土不失为一条捷径。
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。
This causes the rock to break, or fracture, releasing the gas.
这造成岩石破裂或开裂，释放出天然气。
Under the same conditions the maximum water-flow in rock fracture is about 30—40 times that in the clay fracture.
指出粘土裂缝中最大水流量要比相同条件下基岩裂缝水流量小30—40倍。
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。
In mining engineering, strata models are often simulated by similar material simulation model, rock bending deformation and fracture damage is the serious problem.
而在采矿工程中，相似材料模拟的往往是层状模型，岩层的弯曲变形和断裂破坏是关键问题。
An experiment on dynamic rock fracture toughness test using edge-notched disc specimen is presented.
提出用边切槽圆盘试样测量岩石动态断裂韧度的实验方法。
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。
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。
Describing rock fracture as a non-equilibrium process in which micro-cracks nucleate, grow and propagate, a set of differential equation describing this evolution process is derived.
认为岩石断裂是岩石内部微裂缝成核、形成和传播的非平衡过程，导出了描述这个过程的微分方程。
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。
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。
This paper describes the Analysis System RFPA2D in process of rock fracture, which applies in investigation of moving rules of rock, and conducts calculation of actual instance.
论述了岩石破裂过程分析系统RFPA2D在采场上覆岩层移动规律研究中的应用并进行了实例计算。
The results according with other models and laboratory experiments show that the percolation mode is a suitable model for describing rock fracture process.
所得结果与其他模型和实验基本一致，表明通渗模型是描述岩石破裂扩展演化过程的一种较合适的模型。
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 damage and destroy theory of bedded composite rock, damage principal equation and damage and fracture rules of bedded composite rock have been founded.
以层状复合岩体损伤破坏理论为基础，建立了层状复合岩体损伤本构方程及其破坏断裂准则。
This logging method is simple and practical, can effectively recognize rock type, fracture developed zone and fracture occurrence, and is worth of spreading.
该测井识别方法简单、实用，可有效识别岩石类型、裂缝发育带以及裂缝产状，具有一定的推广应用价值。
This logging method is simple and practical, can effectively recognize rock type, fracture developed zone and fracture occurrence, and is worth of spreading.
该测井识别方法简单、实用，可有效识别岩石类型、裂缝发育带以及裂缝产状，具有一定的推广应用价值。
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