废弃轮胎包用作刚性挡土结构回填土的土压降低试验研究

IF 0.7 Q4 MECHANICS

Studia Geotechnica et Mechanica Pub Date : 2021-11-01 DOI:10.2478/sgem-2021-0023

A. Duda, T. Siwowski

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引用次数: 1

摘要

摘要废轮胎衍生产品，包括整条轮胎、轮胎包、碎片、碎屑和橡胶屑，在岩土工程应用中得到了广泛应用。特别是，轮胎包在软土地基上建造轻质路堤或道路基础、边坡稳定或滑坡修复以及挡土结构回填方面具有相当大的潜力。轮胎捆结构的正确设计需要进行可靠的强度分析，以确保足够的安全系数。分析应利用必须正确确定的轮胎捆和成捆结构的特性。制定了一个实验室测试程序，以确定由轮胎包补充轻质骨料制成的回填土的关键强度参数。进行了全尺寸直接剪切试验，以确定轮胎包和填充材料之间的界面剪切强度。基于实验结果进行了土压降低分析，以评估用作刚性挡土结构回填土的废轮胎包的有效性。

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Experimental study on earth pressure reduction of waste tyre bales used as a backfill for rigid retaining structures

Abstract Waste tyre-derived products, including whole tyres, tyre bales, shreds, chips and crumb rubber, have been widely used in geotechnical applications. In particular, tyre bales have considerable potential for use in the construction of a lightweight embankment or road foundation over soft ground, slope stabilisation or landslide repairs and the backfilling for retaining structures. Proper design of tyre bale structures requires a reliable strength analysis to ensure an adequate factor of safety. The analysis should utilise the properties of the tyre bales and the baled structures, which must be properly determined. A laboratory test programme was developed to determine the key strength parameters of a backfill made of tyre bales supplemented with a lightweight aggregate. Full-scale direct shear tests were conducted to define the interface shear strength between the tyre bales and the filling material. Earth pressure reduction analysis based on the experimental results was performed as well to assess the effectiveness of waste tyre bales used as a backfill for rigid retaining structures.

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来源期刊

Studia Geotechnica et Mechanica MECHANICS-

CiteScore

1.30

自引率

16.70%

发文量

审稿时长

16 weeks

期刊介绍： An international journal ‘Studia Geotechnica et Mechanica’ covers new developments in the broad areas of geomechanics as well as structural mechanics. The journal welcomes contributions dealing with original theoretical, numerical as well as experimental work. The following topics are of special interest: Constitutive relations for geomaterials (soils, rocks, concrete, etc.) Modeling of mechanical behaviour of heterogeneous materials at different scales Analysis of coupled thermo-hydro-chemo-mechanical problems Modeling of instabilities and localized deformation Experimental investigations of material properties at different scales Numerical algorithms: formulation and performance Application of numerical techniques to analysis of problems involving foundations, underground structures, slopes and embankment Risk and reliability analysis Analysis of concrete and masonry structures Modeling of case histories