 | | 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: | | 12977 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8096
|
| In English (Mech. Solids): | | 4881 |
|
| << Previous article | Volume 59, Issue 5 / 2024 | Next article >> |
| Zhilin Zhou, Yeyu Huang, and Fengxi Zhou, "Dynamic Response of Layered Unsaturated Soils under Moving Loads," Mech. Solids. 59 (5), 2975-2991 (2024) |
| Year |
2024 |
Volume |
59 |
Number |
5 |
Pages |
2975-2991 |
| DOI |
10.1134/S0025654424604907 |
| Title |
Dynamic Response of Layered Unsaturated Soils under Moving Loads |
| Author(s) |
Zhilin Zhou (School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050 China)
Yeyu Huang (Qianxinan High-tech Industrial Development Zone Investment Service Center, Xingyi, Guizhou, 562400 China, hyy_polar@163.com)
Fengxi Zhou (School of Civil Engineering, Lanzhou University of Technology, Lanzhou, Gansu, 730050 China) |
| Abstract |
Based on the theory of porous media mixture, a computational model of two-dimensional
layered unsaturated soil foundation is established and the dynamic response of layered unsaturated soil
under moving load is studied. The stiffness matrix of the layered unsaturated soil foundation is
obtained by the Fourier transform and Helmholtz vector decomposition principle and the numerical
solutions of the layered unsaturated soil foundation in the frequency domain are solved by using the
transfer matrix method and combining the boundary and interlayer continuity conditions in the derivation. The numerical solutions of displacement, stress, and pore pressure in the layered unsaturated
soil are obtained by Fourier inversion. The numerical examples were used to analyze the effects of load
velocity, shear modulus, and saturation on the dynamic response of two typical layered foundations:
upper soft and lower hard foundations, and upper hard and lower soft foundations, respectively. The
results show that when the load movement velocity is close to the shear wave velocity in unsaturated
ground and causes the resonance of the soil, the vertical displacement of the surface increases rapidly
to the peak; the order of the soil layers in the layered unsaturated ground has a significant effect on the
surface displacement, and the vertical displacement of the upper soft and lower hard foundation is
larger than that of the upper hard and lower soft foundation; the saturation degree has a significant
effect on the dynamic response of the layered unsaturated ground. The saturation degree has a significant effect on the dynamic response of the layered unsaturated foundation, and the surface vertical
displacement increases with the increase of the saturation degree of the surface soil in both the upper
soft and lower hard foundation and the upper hard and lower soft foundation. |
| Keywords |
unsaturated soil, dynamic responses, layered foundations, moving loads, transfer matrix method |
| Received |
02 August 2024 | Revised |
10 October 2024 | Accepted |
12 October 2024 |
| Link to Fulltext |
|
| << Previous article | Volume 59, Issue 5 / 2024 | Next article >> |
|
 If you find a misprint on a webpage, please help us correct it promptly - just highlight and press Ctrl+Enter
|
|
Russian 
English