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首页> 外文期刊>配管·装置·プラント技術 >Dynamic behaviors of a hollowed; cylindrical soil specimen under cyclic torsional shear loading (part 1) -- effect of cyclic excitation; frequency and bulk density
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Dynamic behaviors of a hollowed; cylindrical soil specimen under cyclic torsional shear loading (part 1) -- effect of cyclic excitation; frequency and bulk density

机译：空洞的动态行为; 循环扭转剪切载量下的圆柱形土壤标本（第1部分） - 循环激发的效果; 频率和散装密度

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摘要

Indoor experiments using cyclic torsional shear loading test method were conducted to clarity the dynamic behaviors of soil compaction induced by repetitive passages of a tractor in the field, particularly focusing on the turning operation. It was ascertained that an increase in the number of cyclic loading caused continuing increment of both torsional shear strain and pore water pressure until the soil specimen failed, since the developing pore water pressure weakened the soil specimen. Themagnitude of torsional shear strain corresponding to cyclic torsional shear stress was affected by loading frequency and bulk density. However, the effect of loading frequency and bulk density was found to be not clear after investigating the relationship between the torsional shear strain and the effective stress ratio.
机译：使用循环扭转剪切负载测试方法进行室内实验，以清楚地阐明磁场中拖拉机的重复通道诱导的土壤压实的动态行为，特别是在转动操作上。 确定了循环载荷数量的增加，导致扭转剪切应变和孔隙水压力的持续增量，直到土壤样本失效，因为发育孔隙水压力削弱了土壤样本。 通过装载频率和堆积密度对应于循环扭转剪切应力的扭转剪切应变的轨道。 然而，在研究扭转剪切应变与有效应力比之间的关系之后，发现负载频率和堆积密度的效果尚不清楚。

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