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破裂角
相关语句
  rupture angle
    Some Equivalent Formulae for Coulomb’s Earth Pressure and Rupture Angle
    库仑土压力与破裂角公式的各种等价形式
短句来源
    The temperature and pressure at the focus is different from the shallow of the crust and the ground. The higher temperature and pressures, the larger conjugate rupture angle.
    地震震源处 ,其温度和压力与地壳浅处及地表不同 ,温、压越高 ,共轭破裂角越大。
短句来源
  “破裂角”译为未确定词的双语例句
    The temperature and pressure at the focus are different from that of the shallow part of crust and the ground. The higher temperature and pressure,the larger conjugate rupture angles.
    地震震源处,其温度和压力与地壳浅处及地表不同,温、压越高,共轭破裂角越大,随着深度的变浅(温、压减小),地震共轭破裂角减小;
短句来源
    It quite systematically expounds the concepts of infinitesimal and finite decimal, continuity and uniformity involved in the deformatiom geometry analysing the oil geological structures, discusses Coulomb-Mohr theoretical expression, and analyses the variable range of shear angle (θ) in deformation ellipsoid. Therefore, the theoretical basis is presented to demonstrate the high angle underthrust.
    文中比较系统地阐述了变形几何学在分析石油地质构造中所涉及的无限小和有限小的概念,连续和均匀性的概念,讨论了库仑——莫尔理论表达式,分析了变形椭球体理论中剪破裂角(θ)值的变化范围,从而为论证高角度仰冲断层提出了理论依据。
短句来源
    (2) strong preferred orientation, augen structure, and small shear angle developed within the fault materials are the indications of creep slip along the eastern segment of Altun fault zone;
    (2 )断层物质具明显的组构现象 ,眼球状流动构造 ,较小的剪切破裂角等是阿尔金断裂东段断层蠕动的结果 ;
短句来源
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  fracture angle
When t→∞, the static-state distortion strain energy criteria and the formula for determiming static-state fracture angle are obtained.
      
In addition, the relative accuracy of three current fracture theories and the new criterion in predicting static-state mixed-mode initiation fracture loading and fracture angle in rock have been evaluated experimentally.
      
Perimortem injuries may be distinguished from postmortem damage by examining certain attributes such as fracture angle and fracture margins.
      
Numerical results for the fracture angle are obtained to illustrate the application of the proposed formulation.
      
The results showed a reduction in the mean fracture angle from 17° preoperatively to 1° postoperatively.
      
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In this paper, by use of focal mechanism solutions of 31 small shocks and 15 single stations(average result), the characteristics of stress fields of Yihe—Shuhe fault belt and its adjacent region are studied. The results have shown that the directions of principal stress axes, P and T, in Yihe-Shuhe fault belt are 72° and 342°, respectively, which agree with that in Jiangsud Shandong-Anhui-Henan region; the stress field difference at vertical variant segments in the fault belt is obvious. The statistical result...

In this paper, by use of focal mechanism solutions of 31 small shocks and 15 single stations(average result), the characteristics of stress fields of Yihe—Shuhe fault belt and its adjacent region are studied. The results have shown that the directions of principal stress axes, P and T, in Yihe-Shuhe fault belt are 72° and 342°, respectively, which agree with that in Jiangsud Shandong-Anhui-Henan region; the stress field difference at vertical variant segments in the fault belt is obvious. The statistical result of mechanism of earthquakes at different depth has shown that the focal mechanism of earth quakes in depth more than 17km appers to reflect crustal stress field more really. The mechanical model of Yihe-Shuhe fault belt is given. Finally, the recent characters of seismicity in this fault belt and its relation to active fault, stress state and fracture angle have been discussed.

本文利用小震震源机制解及单台平滑机制解资料,研究了沂沭断裂带及其附近地区的应力场特征,结果表明:沂沭断裂带应力主轴P为72°,T为342°,与苏、鲁、皖、豫地区应力场取向一致;该带应力场存在纵向上的分段差异;不同深度的地震机制结果统计表明,震源较深的地震(h≥17公里)机制更能真实地反映地壳应力场。最后对该带近期地震活动的基本特征及其与活动断裂、受力状态和破裂角大小等因素的关系进行了初步分析。

Based on the geological characteristics of Tianfu anticlinal structure, this article puts forward the problem of deformation geometry of high angle underthrust. It quite systematically expounds the concepts of infinitesimal and finite decimal, continuity and uniformity involved in the deformatiom geometry analysing the oil geological structures, discusses Coulomb-Mohr theoretical expression, and analyses the variable range of shear angle (θ) in deformation ellipsoid. Therefore, the theoretical basis is presented...

Based on the geological characteristics of Tianfu anticlinal structure, this article puts forward the problem of deformation geometry of high angle underthrust. It quite systematically expounds the concepts of infinitesimal and finite decimal, continuity and uniformity involved in the deformatiom geometry analysing the oil geological structures, discusses Coulomb-Mohr theoretical expression, and analyses the variable range of shear angle (θ) in deformation ellipsoid. Therefore, the theoretical basis is presented to demonstrate the high angle underthrust.

本文以天府背斜的地质构造特征为基础,提出了高角度仰冲断层的变形几何学问题。文中比较系统地阐述了变形几何学在分析石油地质构造中所涉及的无限小和有限小的概念,连续和均匀性的概念,讨论了库仑——莫尔理论表达式,分析了变形椭球体理论中剪破裂角(θ)值的变化范围,从而为论证高角度仰冲断层提出了理论依据。

A series triaxial compressional tests of a reservoir sandstone(J_2s)were made at different temperatureand pressure.The stress—induced cracks generated in the tested samples were studied both macroscopicallyand microscopically,and some geometrical parameters of those cracks such as the lenth,the direction andthe density were measured carefully.The observed data show that there is an instinct relation between thegeometrical characteristics of the cracks and the TP conditions under which the specimens were tested.When...

A series triaxial compressional tests of a reservoir sandstone(J_2s)were made at different temperatureand pressure.The stress—induced cracks generated in the tested samples were studied both macroscopicallyand microscopically,and some geometrical parameters of those cracks such as the lenth,the direction andthe density were measured carefully.The observed data show that there is an instinct relation between thegeometrical characteristics of the cracks and the TP conditions under which the specimens were tested.When the applied stress is lower then 50% of the compressional strength of the rock,almost all of thecracks in the samples are intragranular or intergranular microcracks with the same or smaller size of thegrain and the absolute number of the cracks is also small.the across—granular cracks occure only when theapplied stress is increased to 80% of the compressional strength,and the angles between the crack planeand (?) in thin sections gradually approach to the final macroscopical fracture angle when the cracks aregetting larger and larger.Antisteps were found on each of the macrocrack surfaces of the samples tested at the TP conditionsnot less than 65℃,75MPa.Based on the observed results,a mechanism is proposed for the transition from microcracks(?)roliferation to the formation of the mainfracture.

以温压组合条件模拟地层埋深状态,对16块储层砂岩进行了三轴压缩试验,并对试件中不同尺度的应力裂缝(stress-induced cracks)进行了宏、微观相结合的研究,观察统计了裂缝的长度、方向、密度等几何参数的变化.结果表明:应力裂缝的形态特征与岩石变形时的温、压组合条件之间存在着相关关系;当外加载荷不超过岩石抗压强度的50%时,数量有限的微裂缝都是尺度与岩石颗粒相当的粒内或粒间裂缝;穿粒裂缝仅出现在80%峰值应力以上的应力区间中,且主要由粒内裂缝连通形成,随着穿粒裂缝尺度的增大,裂面与σ_1方向夹角在统计分布上有增大趋势,并逐级趋于未来的宏观破裂角;65℃、75 MPa 以上的温、压组合条件下,试件中最终形成的宏观裂面上皆以反阶步为特征.基于以上结果,本文建立了微裂缝演化的逐级连通模型,为复杂的构造应力裂缝预测工作,提供了一条新的思路.

 
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