Recycled Tire Chips Mixed with Sand as Lightweight Backfill Material in Retaining Wall Applications: An Experimental Investigation

Reddy, S. Bali; Krishna, A. Murali

doi:10.1007/s40891-015-0036-0

Cited by 67 publications

(24 citation statements)

References 23 publications

(35 reference statements)

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“…Strainmeters were used to capture the axial strain inside the wall and earth pressure transducers were used to capture the normal stress at the soil/wall interface. This approach has been used in various studies to investigate the mechanical behavior of geostructures [40][41][42]. The results obtained in the present work show that this method could be also used to investigate the thermo-mechanical behavior of energy geostructures.…”

Section: Discussionmentioning

confidence: 68%

Thermo-mechanical behavior of energy diaphragm wall: Physical and numerical modelling

Dong

Tang

et al. 2019

Applied Thermal Engineering

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：The paper presents a study of the thermo-mechanical behavior of energy diaphragm wall. A physical model, which consists of a small-scale concrete diaphragm wall equipped with a heating exchange pipe, was used. A heating test was performed where hot water (at 50 °C) was circulated through a heat exchange pipe for 75 h. The results show that the temperatures in the wall and in the soil increased quickly during the first 20 h and reached stabilization at the end of the experiment. Heating induced increase of axial strain in the wall and earth pressure at the soil/wall interface. In addition to the experiment, a numerical model, using finite element analysis, was used to predict the behavior of the wall during this experiment. The good agreement between the numerical and the experimental results allows the main phenomena that took place to be explained; heating induces thermal expansion of the wall that results in the modification in stress in the wall and at the soil/wall interface. In addition, since the pipe was located closer to one side of the wall, the thermal expansion of the wall was not homogenous, and the wall bent during heating.

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Section: Discussionmentioning

confidence: 68%

Thermo-mechanical behavior of energy diaphragm wall: Physical and numerical modelling

Dong

Tang

et al. 2019

Applied Thermal Engineering

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“…At present, there are many researches on rubber debris reinforced soil, which are applied in highway construction [9], slope stability [41], lightweight backfill materials [42][43][44], and seismic isolation and damping materials [45,46]. rough direct shear test, the researchers found that the internal friction angle and shear strength of sand increased, and it was concluded that the best size and rubber content were particle size in the range of 9.5 mm-12.5 mm and 30% of rubber particle volume [47,48].…”

Section: Rubber Debris Reinforced Soilmentioning

confidence: 99%

Advances in Properties of Rubber Reinforced Soil

Yang

Zhang

Shi

et al. 2020

Advances in Civil Engineering

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The accumulation of waste tires is a global resource and environmental problem. The landfill or incineration of tires will infiltrate toxic chemicals into the surrounding environment, which poses a serious ecological threat to the environment. A large number of studies have shown that waste tires can be used in geotechnical engineering, which provides a good idea for the recycling of waste tires. Up to now, researchers have tested the performance of soil mixed with waste tires by dynamic triaxial test, California load ratio test, unconfined compression test, direct shear test, consolidation test, and expansive force test. The results show that the stability and strength of the soil can be enhanced by adding about 20% rubber particles to the expansive soil, and the expansion, contraction, and consolidation characteristics of the expansive soil can be significantly improved. Rubber can improve the mechanical properties and deformation properties of sand. The rubber sand with a rubber content of 30% is often used as the isolation layer of middle and low buildings. However, it remains to be seen whether it is sustainable and durable to use waste tire rubber to improve soil properties and whether the chemical composition of waste tire rubber will have adverse effects on soil. So, more researchers are encouraged to look into this question. Here, we review the method and effect of rubber reinforcement technology with scrap tires and introduce the practical application of rubber reinforcement technology in engineering, such as specific engineering projects for retaining wall, road filling, shock absorption, and vibration isolation. This review will be of great significance and broad prospects for the reuse of waste tires and the development of geotechnical engineering.

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“…Ahn and Cheng [14] found that slippage on the wall increased, but the dynamic pressure exerted on the wall with the TDA backfill decreased considerably by performing a large-scale shaking table test. Reddy and Krishna [15] and Dammala et al [16] investigated the static and seismic behaviour of retaining wall backfilled with sand-tyre aggregate mixtures as backfill materials. Recent shaking table tests have been conducted by Hazarika et al [2] on gravity-type model caisson shielded by a cushioning tyre chip, and reported that the presence of tyre chips lowered the seismic load against the caisson wall.…”

Section: Introductionmentioning

confidence: 99%

Performance of Retaining Walls with Compressible Inclusions under Seismic Loading

2020

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This paper investigates the possible application of recycled tyre shreds as compressible inclusion behind retaining walls under dynamic loading. It is a novel method to reduce the magnitude of earthquake-induced dynamic forces against rigid earth retaining wall structures. A numerical model to analyze the behavior of retaining walls with compressible cushion was developed in PLAXIS 2D, a two-dimensional finite element analysis based software, and the results were validated by comparison with experimental findings from physical models. The study evaluates the effects of thickness of compressible cushion and the friction angle of the backfill on the seismic performance of retaining walls. To assess the effect of frequency on wall performance with and without cushion, the wall was subjected to 15 cycles of sinusoidal excitation with acceleration amplitudes of 0.1g to 0.3g at a frequency of 7 Hz. The results from the numerical analysis indicate that the permanent displacements of the wall were reduced in the range of 38% to 52% and the horizontal earth pressures were reduced by about 55% to 76% due to the presence of tyre shreds as a compressible cushion between the wall and backfill. Results showed that the dynamic load against the retaining wall can be considerably reduced through the proposed technique. Doi: 10.28991/cej-2020-03091631 Full Text: PDF

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Recycled Tire Chips Mixed with Sand as Lightweight Backfill Material in Retaining Wall Applications: An Experimental Investigation

Cited by 67 publications

References 23 publications

Thermo-mechanical behavior of energy diaphragm wall: Physical and numerical modelling

Thermo-mechanical behavior of energy diaphragm wall: Physical and numerical modelling

Advances in Properties of Rubber Reinforced Soil

Performance of Retaining Walls with Compressible Inclusions under Seismic Loading

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