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我们所研制的ZSY—83型三轴可调压力装置,一个侧向以胶囊油压实现软接触,它的最大压强可达60Mpa;另一个侧向以两个油缸千斤顶,施加压力可达100吨,加上长江500型轴向压力系统可加压力500吨,组成三轴压力装置。常用标准试件有7.1×7.1×14.2cm~3和20×20×20cm~3两种。对于小于20×20×20cm~3试件,在20×20cmc~2胶囊前垫上钢块,即组成固体传压三轴压力室。我们做了中间主应力对大理岩强度的影响的实验,结果与茂木清夫的较一致。
We developed the ZSY-83-type three-axis adjustable pressure device, a lateral hydraulic pressure to achieve soft touch capsule, its maximum pressure up to 60Mpa; the other side with two cylinder jacks, exert pressure up to 100 tons , Together with the Yangtze River 500 axial pressure system can be pressurized 500 tons to form a triaxial pressure device. Commonly used standard specimen 7.1 × 7.1 × 14.2cm ~ 3 and 20 × 20 × 20cm ~ 3 two kinds. For less than 20 × 20 × 20cm ~ 3 specimens, 20 × 20cmc ~ 2 capsule front pad steel, which constitutes a solid pressure transfer triaxial pressure chamber. We did an experiment on the influence of intermediate principal stress on the strength of marble, and the result is more consistent with that of Motegi.