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前言常规的振动三轴试验是在侧压力不变和等幅应力条件下进行的。这时,试验的应力路线,即应力莫尔圆顶点的轨迹,是一条与应力轴成45°的直线,试样表现的应变幅值都是先小后大。这种人为规定的试验条件显然与现场土的实际受力情况有很大差别,由此得出的土的动力特性能否适用于其它受力条件是极需验证的一个问题。迄今为止,虽
Introduction The conventional vibratory triaxial test is performed under constant side pressure and constant amplitude stress conditions. At this time, the stress path of the test, the trajectory of the stress Moore dome, is a straight line 45° from the stress axis. The strain amplitudes exhibited by the specimen are both small and large. This artificially prescribed test condition is obviously very different from the actual soil condition of the site soil. Therefore, whether the dynamic characteristics of the soil can be applied to other stress conditions is a problem that needs to be verified. So far, though