再结合最小主应力原理，确定重复压裂裂缝方位。
Integrating the minimum principal stress principle, the re-fracturing crack azimuth is determined.
莫尔-库仑模式基于莫尔圆来判断最大和最小主应力平面上的破坏应力状态。
The Mohr-Coulomb model is based on plotting Mohr's circle for states of stress at failure in the plane of the maximum and minimum principal stresses.
随着中间主应力和最小主应力的增加，空间弱面破坏角度范围具有变小的趋势。
And the spatial failure region becomes smaller with the increased values of the middle and minimum principal stresses.
在泥岩段水平最大与最小主应力基本相等或相差甚小，在砂岩段才呈现较大差异。
Horizontal maximum and minimum principal stresses are nearly equal in shale formation, and very different in sand formation.
人工裂隙的方向受地应力场中两个相互垂直的主应力分量—最大主应力和最小主应力的制约。
The orientation of the induced hydrofractures arc controlled by the mutually perpendicular orientations of the maximum and minimum principal stress components of in situ stress field.
膨胀条带与压缩条带相反，孔隙度明显大于周围岩石，发生在垂直于最小主应力方向上，并与剪切条带共生。
On the contrary, the porosity of dilation bands is quite bigger than the surrounding rocks. Thus dilation bands are perpendicular to the minor principal stress, accompanied by shear bands.
应力改变触发地震的机制，主要是由于最小水平主应力的减小，或两个水平主应力同时减小。
Decreasing of the minimal horizontal principal stress, or more, may he responsible for a trigger of the earthquake associated with a change in stresses.
取得了该区最大水平主应力、最小水平主应力量值及最大水平主应力方向。
The maximum and the minimum horizontal stresses and the direction of the maximum horizontal stress are obtained.
取得了该区最大水平主应力、最小水平主应力量值及最大水平主应力方向。
The maximum and the minimum horizontal stresses and the direction of the maximum horizontal stress are obtained.
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