Operational risk management – Measurement and evaluation of friction coefficients for geotextile sandbags for flood protection Operatives Risikomanagement – Messung und Bewertung von Reibungskoeffizienten für geotextile Sandsäcke für den Hochwasserschutz

IF 1.2 4区材料科学 Q4 MATERIALS SCIENCE, MULTIDISCIPLINARY Materialwissenschaft und Werkstofftechnik Pub Date : 2024-07-02 DOI:10.1002/mawe.202400015

M. Thomisch, L. Lock, T. Eckstein, B. Forderer

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Abstract

The present work focuses on the friction coefficient for various geotextile sandbag structures especially dikes under different conditions. Based on the review of existing investigations there are several gaps to close. Former investigations do not include the whole scope of needed surfaces and conditions. Especially the friction coefficients for polypropylene and even for jute as material mainly used for small geotextile sandbags are not fully available. Additionally, the influence of the surface moisture is not consequently investigated, particularly for jute. Due to this, eleven test series (three with sandbag on sandbag configuration and eight with sandbag on ground surface) with 780 single readings are finalized. In comparison to former studies there are results for surface combinations of good harmonization and those with differences. A comparison of the earlier studies already shows different results Summarized it can be stated that the presented results are representative friction coefficients for calculation of realistic sandbag structures e. g., sandbag dikes or spring cascades.

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操作风险管理 - 测量和评估用于防洪的土工织物沙袋的摩擦系数操作风险管理 - 测量和评估用于防洪的土工织物沙袋的摩擦系数

本研究的重点是不同条件下各种土工织物沙袋结构（尤其是堤坝）的摩擦系数。在对现有研究进行回顾的基础上，我们发现了一些需要填补的空白。以前的研究没有包括所需的全部表面和条件。特别是聚丙烯的摩擦系数，甚至是主要用于小型土工沙袋的黄麻材料的摩擦系数都不完全可用。此外，对表面湿度的影响也没有进行相应的研究，特别是对黄麻的影响。因此，最终确定了 11 个测试系列（3 个沙袋在沙袋结构上，8 个沙袋在地表上），共 780 个单一读数。与以前的研究相比，表面组合的结果既有很好的一致性，也有差异。总之，可以说所提供的结果是用于计算实际沙袋结构（如沙袋堤坝或弹簧级联）的具有代表性的摩擦系数。

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

Materialwissenschaft und Werkstofftechnik 工程技术-材料科学：综合

CiteScore

2.10

自引率

9.10%

发文量

154

审稿时长

4-8 weeks

期刊介绍： Materialwissenschaft und Werkstofftechnik provides fundamental and practical information for those concerned with materials development, manufacture, and testing. Both technical and economic aspects are taken into consideration in order to facilitate choice of the material that best suits the purpose at hand. Review articles summarize new developments and offer fresh insight into the various aspects of the discipline. Recent results regarding material selection, use and testing are described in original articles, which also deal with failure treatment and investigation. Abstracts of new publications from other journals as well as lectures presented at meetings and reports about forthcoming events round off the journal.