• The axes of principal stress rotated before earthquake.

    应力旋转

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  • The beginning of crack is vertical along the orientation of maximum horizontal principal stress.

    裂缝沿着最大水平应力方向垂直缝

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  • Integrating the minimum principal stress principle, the re-fracturing crack azimuth is determined.

    结合最小应力原理确定重复压裂裂缝方位。

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  • At the beginning of loading, the major principal stress centralize in a triangle area under the lap.

    开始加载时最大应力集中在搭接面以下一个三角形区域内

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  • In the article, a simple method is discussed to confirm the principal stress direction un-den the plane stress condition.

    文章给出了一种判断平面应力状态应力方向的简便方法

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  • The direction of the major principal stress in a region remains the same from tens of meters to 4000 meters below surface.

    一个地区压应力方向地下几十至4000米大体是一致的。

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  • The measured maximum horizontal principal stress orientation in North China by different methods were compared in this paper.

    本文分析比较不同方法测得的华北地区最大水平应力方向

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  • Precision estimation of principal direction is more objective by using principal stress deflection error proposed in this paper.

    提出应力偏角误差概念及其计算方法,使主应力方向精度评定更加真实客观

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  • It was showed that the continuous rotation of principal stress induced the development of pore water pressure in carbonate sand.

    结果表明,应力方向连续旋转导致钙质孔隙压力增长

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  • The calculation shows that the radius and displacement of plastic zone will reduce when the neutral principal stress is considered.

    计算表明考虑中间应力圆筒形孔塑性半径有明显减少

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  • It was found that the undrained shear behavior of loose sands was considerably dependent on the orientation of the principal stress.

    研究表明应力方向对在不排水条件下饱和单调剪切特性具有显著影响。

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  • Slip rate, net slip and the Numbers of unstable events depend on the orientation of the fault with respect to the principal stress axes.

    每条断层位移速率位移量以及失稳事件断层方向压应力的夹角有关。

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  • Although the value of axial strain of refuse exceeds 30 %, the phenomenon of the increase of the principal stress difference is observed.

    观察到垃圾应变超过30 %而应力仍然在增长

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  • By analysis, it can be concluded that the effect of intermediate principal stress in the stability of slope analysis shouldn't be neglected.

    通过分析可知中间应力边坡稳定性分析中不容忽视。

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  • The cave's initial principal stress is tectonic stress, and the Max main stress's direction is perpendicular to the power house's stalk line.

    室地应力以构造应力为主,最大应力方向与厂房轴线方向垂直。

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  • Plane strain state is familiar in geotechnical engineering, and estimating the principal stress in the plane strain state is very complicated.

    土的平面应变岩土工程常见状态,其中零应变方向的应力十分复杂的。

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  • The crystal axes and the principal stress axes are obtained from the optical indicatrix axes manually by turning the projection diagram as usual.

    以往通过手工率体主轴获取晶轴应力主轴的,把手工操作变为计算机运算和成图,是一个重要的附加课题。

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  • The theoretical result shows that the direction of plastic strain increment is determined by the direction of principal stress and stress increment.

    理论上说明塑性应变增量方向不仅应力方向有关,还与应力增量的方向有关。

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  • The conclusion is that the size of terrestrial stress mainly is vertical principal stress maximum and the fracture of hydraulic fracturing is vertical.

    最大水平应力方向以近东西向为主水力压裂裂缝延伸方向也以近东西向为主;

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  • Decreasing of the minimal horizontal principal stress, or more, may he responsible for a trigger of the earthquake associated with a change in stresses.

    应力改变触发地震机制,主要是由于最小水平应力的减小水平主应力同时减小。

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  • This paper describes the transducer of the resistance strain gauge, the formulas for its principal stress and the application of the earthquake prediction.

    本文介绍了电阻应变传感器及其应力公式地震予报中的应用

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  • The results show that vertical stress is equal to overburden stress at shallow level. Maximum principal stress is sub horizontal stress in the NE direction.

    结果表明:显德汪煤矿垂直应力近似等于岩层的自重应力,最大应力为方向,且水平压应力。

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  • On the base of loading properties of hollow cylinder apparatus, loading method to simulating the principal stress axes rotation in laboratory tests is given.

    以此基础,结合空心圆柱加载特点,给出了室内模拟应力旋转的加载方法

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  • Based on the experimental results, the boundary stress and inside stress of the bridge pier are given and the relevant trace of the principal stress is drawn.

    通过实验给出了桥墩边界应力内部应力,绘出相应应力迹线

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  • Two different kinds of failure patterns have been observed and the failure of strengthened beam is attributed to the principal stress at the end of steel plate.

    明确加固具有两种不同破坏模式破坏钢板端部应力大小决定的。

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  • To increase component of grinding force ratio can increase principal stress extreme values in grinding stress field. Materials can be removed by brittle fracture.

    粗加工增加磨削分力可以增大磨削应力场中的应力极值,有助于材料脆性去除

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  • The numerical results showed that the intermediate principal stress weightily affected the spatial combination regularities of different kinds of structure planes.

    计算结果表明中间应力构造结构之间空间组合规律具有重要影响

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  • While direction of previous main faults that intersect the maximum principal stress by minor Angle also probably becomes the major migration direction of oil and gas.

    最大应力角度相交的先期主要断裂方向可能成为油气运移主要方向。

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  • To simulate the deformation of soils in fill construction, it is necessary to build up the constructive model under the stress path of constant ratio of principal stress.

    为了模拟工程中土体变形需要建立在等主应力应力路径模型

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  • To simulate the deformation of soils in fill construction, it is necessary to build up the constructive model under the stress path of constant ratio of principal stress.

    为了模拟工程中土体变形需要建立在等主应力应力路径模型

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