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首页> 外文会议>GeoShanghai International Conference; 20060606-08; Shanghai(CN) >Laboratory Study on the Mechanical Behavior of Tire Chip-Sand Mixture
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Laboratory Study on the Mechanical Behavior of Tire Chip-Sand Mixture

机译：轮胎碎片-砂混合料力学行为的室内研究

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摘要

Stockpiling of scrap tires in Macao brings out environmental and economical problems which may be resolved by using them as lightweight backfill material. The objective of this study is to investigate the mechanical behavior of tire chip-sand mixture, as a potential backfill material, based on laboratory testing. The tire chips are pieces of scrap tires cut into about 3 cm with specific gravity of 1.17-1.25. The stress-strain-strength and volumetric behavior and the strength parameters of the tire chip-sand mixture were determined in consolidated-undrained and drained triaxial tests. The variation of mechanical behavior with respect to the chip/mix ratio suggested the optimum mixing ratio to be about 40%. The test results were also used to determine the modeling parameters and to compare with the numerical simulations using the hyperbolic model. Recommendations for modeling the behavior of tire chip-sand mixture are provided.
机译：在澳门储存废旧轮胎带来了环境和经济问题，可以通过将其用作轻质回填材料来解决。这项研究的目的是基于实验室测试，研究作为可能的回填材料的轮胎碎屑-砂混合物的机械性能。轮胎碎片是切成约3厘米，比重为1.17-1.25的废轮胎。在固结排水和排水三轴试验中确定了轮胎碎片-砂混合物的应力-应变强度和体积行为以及强度参数。机械性能相对于切屑/混合比的变化表明最佳混合比为约40％。测试结果还用于确定建模参数，并与使用双曲线模型的数值模拟进行比较。提供了对轮胎碎片-沙土混合物行为进行建模的建议。

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