three-axial compression test

For samples at three-axial compression test, its failure forms include friction slippage, self-analogue plane expands and crankle expands of micro-cracks when the lateral stress is tensile stress or smaller value.

对于三轴压缩的岩石试件，当侧向应力为拉应力或很小时，其破坏形式主要是微裂纹的摩擦滑移、自相似平面扩展和弯折扩展。

The experiments of obtaining stress strain curves in cyclic loading condition are investigated, and the measure-ments of the stress strain curves in reverse loading by using sheet metal compression test and three-point bending test are clarified.

对材料在循环加载条件下应力应变曲线的实验获取方法进行了探讨，重点介绍了板料压缩、三点弯曲实验确定材料反向加载应力应变曲线的原理和方法；

At present, four methods are mainly used for reinforcement earth research: prototype test, model test, three-axial compression test, direct shear test and drawing test.

目前加筋土的试验研究主要有四种方法：原型试验、模型试验、三轴压缩试验、直剪试验和拉拔试验。

Compared with the numerical results, it can be seen that the strength size effect is remarkable under three point bending test and is not apparent under compression test with lateral pressure.

试验也表明，三点弯曲试验强度尺寸效应最为明显，单轴拉压试验次之，有侧压的压缩试验最不明显。

Finally, the static and dynamic calculation parameters of the three-dimensional finite element of the dam are confirmed through laboratory compression test and triaxial test on the embankment material.

通过坝料室内压缩试验和三西安理工大学工程硕士学位论文轴试验，研究确定坝体三维有限元静、动力计算参数。