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作者在刚性伺服三轴试验机上通过简单的控制方式,采用单块或少量试件,实现多级围压作用下加载的三轴试验,并对砂岩、泥岩等试验结果进行了分析。使用该方法确定的粘聚力低于常规试验值而内摩擦角变化不大;同时该方法可以降低岩石试件间的差异对试验结果的影响。
In a rigid servo triaxial testing machine, a simple control method is adopted, and a single or a small number of test pieces are used to realize the triaxial test under multi-stage confining pressure. The test results of sandstone and mudstone are also analyzed. The cohesive force determined by this method is lower than the conventional test value and the internal friction angle does not change much. At the same time, this method can reduce the influence of the difference between rock specimens on the test results.