Abstract The interaction between off-road machines and soil is usually a dynamic process of soil shearing. However, in practice, in order to interpret these processes, the empirical modified static Coulomb criterion, which does not take into account the soil strengthening, is commonly used. At Wroclaw University of Technology a proposal for a method for predicting dynamic shear strength in soils was developed. This method takes into account primarily the soil shear velocity, the scale effect of the test device and its kinematics, which include the parameters of the process under investigation in terramechanics. The method will be presented in two parts of the following publication. The first part presents the results of the tests on soil shear strength carried out by the author of the article by means of soil ring shear test device. These results are discussed against the background of the results of soil research performed all around the world. On the basis of the tests conducted by the author, a new dynamic criterion of soil shear strength was formulated and the requirements for the innovative method for predicting dynamic shear strength in soils were established. This experimental method will be presented in the second part of the article.

中文翻译：

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预测土壤动态剪切强度的方法 - 第一部分：新标准的建议

摘要 越野机械与土壤的相互作用通常是土壤剪切的动态过程。然而，在实践中，为了解释这些过程，通常使用不考虑土体强化的经验修正静态库仑准则。弗罗茨瓦夫理工大学提出了一种预测土壤动态剪切强度方法的建议。该方法主要考虑土壤剪切速度、测试装置的尺度效应及其运动学，其中包括在地力学中研究的过程参数。该方法将在以下出版物的两个部分中介绍。第一部分介绍了本文作者利用土环剪切试验装置进行土体抗剪强度试验的结果。这些结果是在世界各地土壤研究结果的背景下进行讨论的。在作者试验的基础上，制定了新的土体抗剪强度动力判据，并提出了对土体动抗剪强度预测方法创新的要求。这种实验方法将在文章的第二部分介绍。