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本实验研究以液体传压方式与圆体传压方式对砂岩和工程塑料进行了0—3.72GPa 压力的准静水压状态下的体积应变测量,以液体传压的实验数据对固体传压的较低压部分的实验数据进行标定,得到了较为准确的实验结果。对固体传压实验中摩擦力的影响作了较为详细的讨论,给出了误差范围。最后通过对实验结果的分析,提出了固体传压试验中传压介质的选择标准。
In this experiment, the volumetric strain measurements of sandstones and engineering plastics under a quasi-hydrostatic pressure of 0-3.72 GPa pressure were carried out by means of liquid pressure transfer method and circular body pressure transfer method. The experimental data of liquid pressure transfer were used for the pressure transfer of solids. The lower pressure part of the experimental data was calibrated, and more accurate experimental results were obtained. The influence of the friction force in the solid pressure transfer experiment was discussed in detail and the error range was given. Finally, through the analysis of the experimental results, the selection criteria of the medium for pressure transmission in the solid pressure transfer test was proposed.