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Numerical and in-situ evaluation of explosive compaction effectiveness in railway subgrade improvement
Transportation Geotechnics ( IF 4.9 ) Pub Date : 2020-11-14 , DOI: 10.1016/j.trgeo.2020.100475
Morteza Esmaeili , Boheira Tavakoli

Owing to its huge area coverage, explosive Compaction (EC) is as an attractive improvement technique in railway projects. Despite many EC case studies in the literature, few experimental tests are conducted to be used for calibration of numerical models. Thus in this study, a field test is conducted on a railway subgrade and simulated with an advanced numerical model followed by a parametric study on detonation delay. Beside showing promising advantages of the numerical model, it can also distinguish the effects of detonation delay such as change in wave arrivals or instant compaction in EC.



中文翻译:

铁路路基改造中爆炸压实效果的数值和现场评估

由于爆炸性压实(EC)的面积很大,因此在铁路项目中是一种有吸引力的改进技术。尽管文献中有许多EC案例研究,但很少有实验测试可用于数字模型的校准。因此,在这项研究中,在铁路路基上进行了现场测试,并使用高级数值模型进行了仿真,然后对爆震延迟进行了参数研究。除了显示数值模型的潜在优势外,它还可以区分爆震延迟的影响,例如波到达的变化或EC中的立即压实。

更新日期:2020-11-27
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