Review on soil shear strength with loam sand soil results using direct shear test

IF 2.4 3区 工程技术 Q3 ENGINEERING, ENVIRONMENTAL
Alaa El Hariri , Ahmed Elawad Eltayeb Ahmed , Péter Kiss
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引用次数: 2

Abstract

This article aims to give a background about the soil shear strength and its measurement methods based on scientific articles and the work of researchers. A brief introduction is given about terramechanics science and the loads acting at the interaction zone between the tractive element (wheel/track) and the terrain. The most important loads exciting the terrain from the machine’s tractive element are the normal and the tangential loads. The tangential load will shear the terrain/soil and might lead to slippage, thus it is important to study the shear strength of the soil. In the review the soil terrain behaviour as an elastic and a plastic region is discussed. The conventional methods for measuring the soil strength used by scientists in terramechanics studies are reviewed. The influence of moisture content on soil strength is also taken into consideration. New ideas created by terramechanics scientists that emulate a real wheel/track - terrain interaction case for measuring the soil shear strength and are not civil or geotechnical engineering methods are mentioned. Finally, the shear strength results of loam sand soil obtained using the direct shear test conducted at the Hungarian University of Agriculture and Life Sciences (MATE) are presented.

土壤抗剪强度与壤土-砂土直接剪切试验结果的比较
本文旨在根据科学文献和研究者的工作,介绍土抗剪强度及其测量方法的研究背景。简要介绍了地形力学的基本知识和作用于牵引元件(车轮/履带)与地形相互作用区域的载荷。机械牵引元件对地形的主要作用是法向载荷和切向载荷。切向荷载会对地形/土体产生剪切作用,并可能导致土体滑移,因此对土体抗剪强度的研究具有重要意义。本文讨论了土壤地形作为弹性区域和塑性区域的特性。综述了地球力学研究中常用的土强度测量方法。同时考虑了含水率对土体强度的影响。文中提到了由地形力学科学家创造的新想法,即模拟真实的车轮/轨道-地形相互作用的情况下测量土壤抗剪强度,而不是土木或岩土工程方法。最后,介绍了在匈牙利农业与生命科学大学(MATE)进行的直剪试验中获得的壤土砂土抗剪强度结果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Terramechanics
Journal of Terramechanics 工程技术-工程:环境
CiteScore
5.90
自引率
8.30%
发文量
33
审稿时长
15.3 weeks
期刊介绍: The Journal of Terramechanics is primarily devoted to scientific articles concerned with research, design, and equipment utilization in the field of terramechanics. The Journal of Terramechanics is the leading international journal serving the multidisciplinary global off-road vehicle and soil working machinery industries, and related user community, governmental agencies and universities. The Journal of Terramechanics provides a forum for those involved in research, development, design, innovation, testing, application and utilization of off-road vehicles and soil working machinery, and their sub-systems and components. The Journal presents a cross-section of technical papers, reviews, comments and discussions, and serves as a medium for recording recent progress in the field.
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