作者结合岩石力学试验和岩石强度理论对抗滑桩岩质锚固段的地基侧向抗力系数KH进行分析，并根据一定的变形观测和位移反分析法来为KH的取值作一些探讨和研究。
The writers also make some discussions and studies about the size of KH in the presence of deformation observations and displacement back analysis method.
利用该回归模型进行抗压强度的计算，可以为建立油井出砂的理论预测模式提供较为准确的岩石抗压强度数据。
The computed rock compressive strength with the established regression model can support exact compressive strength for the establishing of sand prediction model for oil well.
这一结论为岩石抗拉强度的正确测定奠定了理论和试验基础。
This method provides theoretical and experimental basis for testing tensile strength of rock accurately.
应用双剪理论对岩石在三轴压缩载荷下的强度和破坏特性进行了理论分析，并将分析结果与已有实验作了对比。
The characteristics of the rock strength and failure under triaxial compressions are theoretically analyzed in detail with the twin shear theory and the results are compared with experimental data.
研究表明，在岩石的强度特性方面，用双剪理论所得分析结果与实验事实较吻合。
The research work shows that in the aspect of rock strength, the analytical results agree with the experiments.
基于弹性力学理论及岩石摩尔-库仑强度破坏准则，提出了欠平衡钻井条件下井径扩大率的预测方法。
Based on the theory of elasticity and molar-Coulomb strength failure criterion, we proposed the prediction method for hole enlargement ratio in the condition of underbalanced drilling.
与传统测试方法不同，这种方法需要知道材料的泊松比和抗压强度，以及适合于岩石材料的强度理论。
In this method, Poisson's ratio, the compressive strength and a suitable strength theory are needed to calculate the tensile strength of rock material.
以往研究岩石的破坏类型只停留在静载作用下，而其强度理论也多采用静态强度理论。
The failure patterns of rock was formerly only studied on the bases of static loading and the static strength theory was adopted.
试验结果和理论研究表明，用承压板直接劈裂岩样是最方便的测试岩石劈裂强度的方法。
The theoretical analysis and the experimental results show that it is feasible and convenient to carry out Brazil test with the bearing plates of a press directly.
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。
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.
本文建议一个适用于岩石的强度理论，通过实例分析，得到一些有意义的结论。
In this paper we suggested a failure theory for rocks. Through the analysis of actual examples we obtained some useful conclusions.
由损伤力学理论与微元强度统计理论，得到了岩石声发射参数与损伤参量的关系。
The relationship between acoustic emission (AE) parameters and damage variable is obtained by applying the damage theory and microelement statistical strength theory.
为探讨岩石的强度理论和中间主应力效应，进行了红砂岩真三轴压力试验。
The true triaxial pressure experiment for red sand rock is conducted for the purpose of investigation into the strength theory of rock and the effect of intermediate main stress.
岩石力学中的强度理论是土木、采矿和水利等众多岩石工程中的安全性和稳定性设计的重要基础理论，它的研究具有重要的意义。
Strength theory of rock is important in safety evaluation and designs of the civil, mining and hydraulic rock engineering, and has important significance in the study of rock mechanics.
然而，岩石的破坏和断裂是紧密相联的，岩石强度准则的材料参数和断裂理论的断裂韧度存在特定的方程关系。
But the damage and fracture of rock is closely related to each other. And the relationship between strength criterion parameters of rock and fracture toughness of fracture theory is particular.
研究表明，统一强度理论能较全面地反映岩石的各种强度特征。
The results show that the unified strength theory can deliberate many aspects of the rock strength.
研究表明，统一强度理论能较全面地反映岩石的各种强度特征。
The results show that the unified strength theory can deliberate many aspects of the rock strength.
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