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首页> 外文期刊>Journal of geotechnical and geoenvironmental engineering >Seismic Response Characteristics of Saturated Sand Deposits Mixed with Tire Chips
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Seismic Response Characteristics of Saturated Sand Deposits Mixed with Tire Chips

机译：轮胎碎屑与饱和砂岩沉积物的地震反应特征

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摘要

With the objective of better and more environmentally friendly recycling methods, many researchers are now examining the use of scrap tires as a new geomaterial. Based on past research, it was clear that tire chips reduce the rise of excess pore-water pressure when subjected to earthquake shaking. Based on such characteristics, online pseudodynamic response tests were conducted in this study on model grounds consisting of either tire chip-mixed sand or alternating layers of sand and tire chips with the aim of clarifying the seismic response characteristics of tire chips and tire chip-sand mixtures. Online testing is a method of feeding soil response characteristics directly from soil samples into a one-dimensional modeling algorithm. The test results showed that when tire chips with low stiffness were either mixed with sand or placed as layers, more significant damping and seismic isolation effects were observed. The presence of tire chips also reduced the accumulation of excess pore-water pressure in the layer, preventing the occurrence of liquefaction. In addition, when tire chips are installed as layers beneath the sand, liquefaction is not generated in the upper sandy layer because the amplitudes of the seismic waves are attenuated. Finally, the effectiveness of tire chips mixed with sand increased as the mix ratio was increased. When they were installed as pure layers, tire chips were more effective when placed at a deeper location or when the layer was thicker.
机译：为了更好，更环保的回收方法，许多研究人员正在研究将废旧轮胎用作一种新的土工材料。根据过去的研究，很明显，轮胎碎片在受到地震震动时会降低多余的孔隙水压力的上升。基于这些特征，本研究在模型基础上进行了在线伪动力响应测试，该模型由轮胎碎屑混砂或交替的沙子和轮胎碎屑层组成，目的是阐明轮胎碎屑和轮胎碎屑的地震响应特性。混合物。在线测试是一种将土壤样品的土壤响应特征直接输入一维建模算法的方法。测试结果表明，当低硬度轮胎碎屑与沙子混合或分层放置时，观察到更显着的减震和隔震效果。轮胎碎片的存在还减少了层中多余的孔隙水压力的积累，从而防止了液化的发生。另外，当将轮胎碎屑作为层安装在沙子下面时，由于地震波的振幅被衰减，因此在上部沙层中不会产生液化。最终，随着混合比的增加，轮胎碎屑与沙子混合的有效性增加。当将它们作为纯层安装时，将轮胎碎片放在更深的位置或层更厚时会更有效。

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