Abstract—

The water phase transition divides two approximation areas of ground from the standpoint of its elastic properties. It is of interest to study the changes of the acoustic characteristics, both kinematic and dynamic, in the process of freezing and thawing, because they can be indicators of various inelastic characteristics of the transition from one state to another. This paper reports the solutions of the following problems: the design of a measuring cell that introduces minimal distortions in ultrasonic P- and S-wave measurements, monitoring of sample temperature, ultrasonic measurements with a time step that provides the necessary characterization, and analysis of recorded wave patterns and their variations in the course of the phase transition.

中文翻译：

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在–20至+ 20°C温度范围内水饱和砂的声学特性的实验研究

摘要—

从其弹性特性的角度来看，水相转变将地面划分为两个近似区域。研究在冻结和解冻过程中运动和动态声学特征的变化是令人感兴趣的，因为它们可以指示从一种状态到另一种状态的各种非弹性特征的指示。本文报告了以下问题的解决方案：测量单元的设计，该单元在超声P波和S波测量中引入了最小的失真；监测样品温度；具有一定时间步长的超声测量，以提供必要的特性；以及分析记录波形图及其在相变过程中的变化。