Pull-out response of a geogrid buried in recycled sands

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2024-05-10 DOI:10.28927/sr.2024.004723

Priscila Oliveira, E. Santos, E. Palmeira

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引用次数: 0

Abstract

Recycled construction and demolition waste (RCDW) has demonstrated geotechnical properties that encourage it to be used in reinforced soil structures (RSS) with geosynthetics. However, the interaction between RCDW and reinforcements needs to be better understood, given its importance for design. This paper presents a qualitative study on the interaction between geogrid and recycled sands by means of pull-out tests performed on small equipment. Tests with the same degree of compaction and a geogrid buried in different types of recycled and natural sands (for comparison purposes) were performed. The characterisation of the materials was carried out in the laboratory and the variability of their geotechnical properties was evaluated. In addition, fill material moisture content was investigated as another potential factor influencing soil-geogrid interface shear. The results of the pull-out tests demonstrated the specific influences of the factors investigated. The comparative study showed that recycled sands can be suitable materials to be used as backfill in geosynthetic reinforced soil structures, meeting physical, mechanical and environmental requirements for this kind of work.

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埋入再生砂中的土工格栅的拉出响应

回收的建筑和拆除废料（RCDW）具有良好的岩土工程特性，可与土工合成材料一起用于加固土壤结构（RSS）。然而，鉴于 RCDW 与加固材料之间的相互作用对设计的重要性，我们需要更好地了解这种相互作用。本文通过在小型设备上进行拉拔试验，对土工格栅与再生砂之间的相互作用进行了定性研究。试验采用相同的压实度，并将土工格栅埋入不同类型的再生砂和天然砂中（用于比较）。在实验室中对材料进行了表征，并对其岩土特性的变化进行了评估。此外，还对填充材料的含水量进行了研究，这是影响土壤-土工格栅界面剪切力的另一个潜在因素。拉拔试验的结果表明了所调查因素的具体影响。比较研究表明，再生砂是土工合成材料加固土壤结构中用作回填土的合适材料，符合此类工程的物理、机械和环境要求。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.