Analysis of Vibration Isolation Effect of Double-Layer WIB Based on Wave Impedance Ratio

被引：0
|
作者：
Zhang Meng
Ma Qiang
机构：
[1] Qinghai University,School of Civil Engineering
[2] Qinghai Provincial Key Laboratory of Energy-Saving Building Materials and Engineering Safety,undefined
来源：
Geotechnical and Geological Engineering | 2023年 / 41卷
关键词：
Unsaturated soil foundation; Double-layer WIB; Wave impedance ratio; Vibration isolation performance; Vibration isolation design;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Based on single-phase elastic medium and unsaturated porous medium theory, the vibration isolation effect of double-layer wave impeding block (WIB) in unsaturated ground under an underground dynamic load is studied. The results show that the optimal vibration isolation effect can be obtained by designing the wave impedance ratio at the intersection between the layers of the double-layer WIB. In the case of the same thickness, the vibration isolation effect of the designed double-layer WIB is not only much better than that of the homogeneous WIB, but also improves the characteristic that the homogeneous WIB is only good at low frequency vibration isolation. Soil saturation has a significant effect on the vibration isolation effect of double-layer WIB in unsaturated soil foundation, and a better vibration isolation effect can be achieved in the case of lower saturation.
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页码：3699 / 3714
页数：15
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