动三轴试验过程的误差分析

Error Analysis of Dynamic Triaxial Test Process

摘要: 动三轴试验是室内土工试验中研究土体动力特性的重要方法，但从试验结果来看具有一定的离散性。这既有试验操作者的人为误差，也有动三轴仪系统本身带来一定误差，如试样制备过程中的误差，系统本身的阻尼力，试验数据的滞后性等等。为了更好地改进和利用动三轴试验研究土体动力特性并解决相关实际问题，有必要对动三轴试验全过程的误差进行分析，提高动三轴试验的准确度。

Abstract: Among indoor soil tests, dynamic triaxial test is an important method in the study of dynamic properties of soil but with certain discrete in test results. Both the test operator and dynamic triaxial system itself bring some errors, such as errors in the sample preparation process, the damping force of the system, the lag of the test data, and so on. In order to improve and use dynamic triaxial test better for soil dynamic characteristics and solving practical problems, it is necessary to analyse errors in the whole process of dynamic triaxial test and improve the accuracy of dynamic triaxial test.