 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 12804 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8044
|
| In English (Mech. Solids): | | 4760 |
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| << Previous article | Volume 57, Issue 4 / 2022 | Next article >> |
| Meng Zhang and Qiang Ma, "Study on the Optimal Vibration Isolation Design and Effect of Composite Multilayer Wave Impeding Block in Unsaturated Soil," Mech. Solids. 57 (4), 904-920 (2022) |
| Year |
2022 |
Volume |
57 |
Number |
4 |
Pages |
904-920 |
| DOI |
10.3103/S0025654422040215 |
| Title |
Study on the Optimal Vibration Isolation Design and Effect of Composite Multilayer Wave Impeding Block in Unsaturated Soil |
| Author(s) |
Meng Zhang (School of Civil Engineering, Qinghai University, Xining, Qinghai 810016, China)
Qiang Ma (School of Civil Engineering, Qinghai University, Xining, Qinghai 810016, China; Qinghai Provincial Key Laboratory of Energy-saving Building Materials and Engineering Safety, Xining 810016, China, maqiang0104@163.com) |
| Abstract |
Based on the mixed theory of three-phase porous medium, the vibration isolation effect of composite multilayer wave impeding block in unsaturated soil is investigated. Using the Fourier integral transform and Helmholtz vector decomposition principle, the computational formula of the dynamic response of unsaturated ground under surface strip harmonic load is established by considering the boundary conditions of surface drainage exhaust. The influence of physical and mechanical parameters such as wave impedance ratio between layers of composite multilayer wave impeding block, wave impedance ratio at the interface between wave impeding block and unsaturated soil, load frequency, and saturation on the vibration isolation performance of composite multilayer wave impeding block is addressed. The results show that the optimal vibration isolation effect of the composite multilayer wave impeding block can be obtained by designing the wave impedance ratio at the interface between the wave impeding block and unsaturated soil and the wave impedance ratio between the layers of the wave impeding block, and the vibration isolation effect of the composite multilayer wave impeding block is much better than that the homogeneous wave impeding block under the same conditions, and the frequency width of vibration damping is improved. Saturation has a significant effect on the vibration isolation effect of composite multilayer wave impeding block in unsaturated soil. |
| Keywords |
unsaturated soil, composite multilayer wave impeding block, wave impedance ratio, vibration isolation |
| Received |
03 April 2022 | Revised |
01 May 2022 | Accepted |
03 May 2022 |
| Link to Fulltext |
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