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.
当试样发生振动时，合适的解决方法是把探头放进一个 硬橡皮 护套里。
A likely solution to this problem, where specimen vibration is present, is to recess the probe into a hard-rubber sheath.
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