 | | 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: | | 11223 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8011
|
| In English (Mech. Solids): | | 3212 |
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| << Previous article | Volume 56, Issue 6 / 2021 | Next article >> |
| Xiaogang Wang and Hao Xiong, "Transient Dynamic Response of Cylindrical Lining in Unsaturated Soils Induced by Internal Loads," Mech. Solids. 56 (6), 1076-1090 (2021) |
| Year |
2021 |
Volume |
56 |
Number |
6 |
Pages |
1076-1090 |
| DOI |
10.3103/S0025654421060236 |
| Title |
Transient Dynamic Response of Cylindrical Lining in Unsaturated Soils Induced by Internal Loads |
| Author(s) |
Xiaogang Wang (School of Civil Engineering and Architecture, Taizhou University, Jiaojiang, 318000 China, wangxg824@tzc.edu.cn)
Hao Xiong (School of Civil Engineering and Architecture, Taizhou University, Jiaojiang, 318000 China, haosyong@126.com) |
| Abstract |
The dynamic interaction between lining and soil in an underground structure is an important basic problem of soil dynamics. The transient dynamic response of a cylindrical cavity with lining embedded in unsaturated soil is studied. Based on the potential function and Laplace transform method, the expression of potential function in the transformation domain is derived, and the general solutions of stress and displacement are obtained. Combining the boundary conditions and the continuous conditions on the interface between lining and soil, the exact analytical solutions are determined. By the degradation of unsaturated soil to saturate status, the solutions for saturated soil are also presented and the rationality of the solution is verified. Based on the analytical solutions, a large number of parameter analyses are conducted. The results show that the maximum radial displacement and the maximum circumferential stress appear on the inner surface of the lining and at the interface, respectively. In the unsaturated clay soil, the dynamic responses of lining disappear in a shorter time. Both the shear modulus and the thickness of the lining have significantly effects on the dynamic response peak value of the structure. Increasing the shear modulus or thickness can effectively reduce the peak value of the radial displacement in the lining. The influence range of circumferential stress and pore fluid pressure in unsaturated soil is not more than 22.5 times of the hole diameter distance. |
| Keywords |
unsaturated soil, lining structure, transient dynamic response, laplace transform, dimensionless parameters |
| Received |
03 February 2021 | Revised |
17 April 2021 | Accepted |
21 April 2021 |
| Link to Fulltext |
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