但固结应力比与有效围压应力对阻尼比之影响则较不明显。
The influence of consolidation stress ratio on damping ratio is not distinct.
试样的平均直径随着有效围压的增长而单调减小。在此，有效围压被定义为围压和孔隙水压之差。
The average diameter decreases monotonically with increasing effective confining pressure, which is defined as the difference between confining pressure and pore water pressure.
模型对传统修正剑桥模型中的剪胀性公式进行了改进，考虑了状态转换应力比与初始有效围压的相关性。
The traditional dilatancy equation of Cam-clay model was modified and the relativity between the phase transformation stress ratio and initial effective pressure was considered.
在围压变化的应力路径上对粗粒料进行大型三轴试验时，需要有效地消除橡皮膜嵌入量对试样体积变形量测的影响。
The influence of rubber membrane penetration on volume change in large-scale triaxial tests of granular materials along stress paths with variational confining pressure need to be eliminated.
通过室内试验，利用围压模拟地层应力，研究了有效应力与岩心的渗透率、孔隙度、岩石压缩系数之间的关系。
An experimental study in laboratory was carried out to determine the effect of ground stress on core porosity, permeability and compressibility by using confined pressure to simulate terra stress.
在恒定围压和瓦斯压力的情况下，软分层煤样的瓦斯渗流速度和渗透系数均随着有效轴向压力的增大而呈“Z”形变化；
The seepage velocity and penetrability coefficient appeared changing of the"Z"shape with the increase of the effective axial feed when the confining pressure and gas pressure were constants.
通过室内试验 ，利用围压模拟地层应力 ，研究了有效应力与岩心的渗透率、孔隙度、岩石压缩系数之间的关系。
The relationships between the permeability of the reservoir and confined pressure and confined pressure cycle are studied by experiments.
结果表明，有效应力系数随着围压的增加而减小，随着孔隙流体压力的增加而增大。
Prediction of the Stress Concentration Factors of the Nozzles on the Internal Pressure Cylinders;
结果表明，有效应力系数随着围压的增加而减小，随着孔隙流体压力的增加而增大。
Prediction of the Stress Concentration Factors of the Nozzles on the Internal Pressure Cylinders;
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